Book Two of the Iliad notoriously contains a list of nearly 190 place names and includes the 29 contingents and that make up the Greek expedition to Troy.  Before launching into an over 250-line catalogue of the leaders of the Greek forces and the number of their ships, Homer appeals to the Muses to aid him in this tour-de-force of memory.  Without their help, he says:

I could not recount their numbers nor name them,
Not if I had ten tongues and ten mouths,
And an unbreakable voice and a brazen chest within,
If the Olympian Muses, daughters of aegis-bearing
Zeus, would remind me how many came under Ilium.

The Catalogue of Ships that follows this invocation can be mapped as an itinerary, or more precisely, three itineraries that traverse most of Greece.  The theoretical basis for the project I am undertaking with the Scholars’ Lab at the University of Virginia Library is already complete. In my recent book, Homer’s Trojan Theater (Cambridge University Press, 2011), I argue that Homer was able to recite the Catalogue by creating a mental journey that used the mnemonic techniques involving loci or places, well known from ancient rhetorical writers.  By envisioning a series of places, Homer could mentally walk – or sail – through Greece and produce a detailed catalogue. Our project will reproduce that journey by showing that the itinerary described follows the natural contours of Greek geography and the patterns of early Greek urban organization.

Mapping the Catalogue of Ships involves several steps.  “Least-cost path” GIS analysis by the Scholars Lab is revealing the terrain that must naturally be followed when taking a walking tour of the Greek mainland.  We are creating an interactive map that follows that path.  The Barrington Atlas of the Ancient World (2002) as well as the recent Historischer Atlas der antiken Welt (2007), The Homer Encyclopedia (2011) and the Pleiades Project, a collaborative database for ancient sites, have pinpointed locations for which we have evidence.  We will attempt to link the sites mentioned in Homer with archaeological material and useful bibliographies.  Finally, we hope to do in situ investigations by actually traversing the plotted itinerary at ground level to survey the terrain, and create extensive panoramic photography. Our main goal is to demonstrate that the arrangement of the Catalogue, far from a random list of place names, corresponds to the natural geography of Greece.  In cases where the position of a site is unknown or disputed, we hope that our analysis will provide plausible geographical and literary evidence to help identify its location.

Collaborators in this project include Ben Jasnow and Courtney Evans, two of my graduate students who worked with me on the Trojan Theater project and who are assisting with GIS analysis, under the guidance of Chris Gist and Kelly Johnston of the Scholars’ Lab. Wayne Graham and other members of the Scholars’ Lab R&D division are creating a presentational framework for our maps and text, and Jeremy Boggs is our lead designer.

Jenny Strauss Clay
William R. Kenan Jr. Professor of Classics

This map is a great example of proportional symbology and is of an interesting subject, especially when juxtaposed with modern oil trading.  Of course, the cartographic style is great too.  I hadn’t much thought of the cartographer or why the map was created until recently.  When I took a closer look, I found the cartographer’s name, Richard Edes Harrison (1901-1994), and that this was one in a series of maps he did for Fortune Magazine mainly in the World War II era.  He was a wonderful cartographer and his style intrigues me.  There is a large amount of information available about Harrison and his maps.

A website showing some of Harrison’s work: http://www.fulltable.com/vts/f/fortune/reh/mn.htm. (Almost all maps in this post are linked from this site).

An article in Imago Mundi about Harrison’s work: http://www.jstor.org/stable/1151400 (JSTOR access required).

A book showing much of Harrison’s work for Fortune: Look at the World, The Fortune Atlas for World Strategy.

Harrison employed many interesting techniques.

Cartograms

More information on cartograms

Interesting Extent Overviews

Series of Small Multiples

A Tufte favorite.  More information on small multiples.

Comprehensive Data Visualizations

Interesting Projections

More information on projections

The last two maps have very interesting projection lessons embedded in them.

Embedded Projection Descriptions

How nice is that?  Having a clear, concise description of projection and scale within the map is a great benefit to the reader.

In this map, Harrison used comparative scales to show changes in distance across map due to projection distortion.

This one is the best.  A clear description with a visual that anyone can understand.

Here is simplified version of the “world centrifuged” in a map called On Assignment.

A few weeks ago, I came across the following map.

What a beautiful projection!  It is know as the butterfly or Cahill projection (Named after the inventor.  Cahill even got a patent for a rubber ball that does the same thing.)  And as the embedded projection description describes, this is a great map for comparing circumnavigation routes because it does not distort distance, area or direction.  Not only that, it gives the “orange peel” figure to further give readers information on how this projection works.

I only learned of the Cahill projection after reading this xkcd cartoon.

Call for Help

If anyone know of other maps with this sort if imaginative visual explanations of projection embedded in maps, please contact me.

And cake.

In 2010 we threw open the Scholars’ Lab doors for folks to present geospatial lightning talks.  We were impressed by the breadth of GIS work ongoing across our community.

And lots of people came to hear these mappy stories.

And for cake.

Face it, you love maps.  We invite you to join our band of Virginia Mapheads as we celebrate World GIS day 2011 with a lightning-fast show of the world’s coolest geowork in the Scholars’ Lab on Wednesday, November 16 at 1:30pm.

Sadly, I know many of you don’t have the pleasure of working all day every day with maps and geodata, so treat yourself to a once-a-year map fix.  You know you deserve it!  And bring a friend.

Again, we have a compelling lightning talk lineup for 2011.

Your reward?  Two slices of our soon to be legendary 2011 GIS Day geocake to be revealed on GIS day!

2011 GIS Day Update

Over 70 folks enjoyed our 2011 GIS Day celebration in the Scholars’ Lab.

Speakers ranged from wily GIS veterans to those who’d recently started using geospatial tools.   Check the speaker list above to see the wide range of topics.

The Charlottesville CBS station sent their GIS Day team to cover the event interviewing Eric Johnson, Scholars’ Lab Head of Outreach and Consulting.

And we feasted on the already legendary Virginia-shaped geocake decorated with flags marking unusual place names.  All this was followed by delicious hot mulled cider.

Thanks to everyone who played a part in making GIS Day 2011 a mappy success!

There is of course a problem in asking students to apply a binary they may not agree exists. However, would allowing a “combination” marker defeat the purpose of the exercise? In a sense this is a problem that is inherent in any cultural binary, but I couldn’t help wondering how this potentially useful application for Prism might work.

In the process of searching for a published example that might be applicable for one of the binaries stated above, I came to the conclusion that Prism might be as useful in a design context as an art-historical one. I looked through Print magazine’s 2010 regional design annual and noticed that the editors’ reasons for selecting the works in each regional collection were rarely specific or clearly observable. In many cases, three or four adjectives were deemed sufficient to loosely hold the collection together. These adjectives, when separated into Prism “markers” seemed to be excellent vehicles to analyze “art speak,” editing, and curatorship.

I was then struck by the idea that we could also use Prism to ask a group of students which images in a group seem more “Midwestern” in style versus “Far West,” and “Eastern” by selecting images from across Print magazine’s regional categories. For our exercise, we only had time too work with a single page, and I did not want to black out the studio locations on the captions, so I selected the Midwest section and asked the group to mark the works that exemplify what the editors of Print magazine called “Narrative,” “Organization,” and “Viewer Interraction.” The exercise went well, and without a lot of time to discuss the results here, I will wait until we have scans of our marked up texts and images.

I was tempted to have a marker devoted to “Art Speak” but that might be a little too snarky for a marker.

• June, 2009 – Google Launches Fusion Tables, an online tool for mapping places
• July, 2010 – Wikileaks Publishes the Afghan War Diary, a massive dataset full of place names
• April, 2011 – Scholars’ Lab Launches “Spatial Humanities Step By Step”,  a source for peer-reviewed geo-tutorials
• October, 2011 – Devin Becker, University of Idaho Digital Initiatives Librarian, publishes Step By Step tutorials on mapping Wikileaks using Google Fusion Tables

So many new mapping tools.  So many online data sources.  So much interest in the Spatial Turn across disciplines.   Where to begin?

Participants in the NEH funded Institute For Enabling Geospatial Scholarship made it clear they wanted a reliable source of helpsheets and tutorials for working with data sources and mapping tools.  Spatial Humanities Step By Step is that growing resource.

We created Step By Step to help aggregate high-quality (yet simple-to-follow) tutorials and provide an opportunity for folks to receive professional acknowledgment for the work that goes into creating them.

In addition to Devin Becker’s newly published contribution on Mapping Wikileaks with Google Fusion Tables, we have in the pipeline tutorials on extracting and quantifying information from historic maps, using Google Earth as a gazetteer, and calculating least cost paths across a landscape.   Already posted are helpsheets for georeferencing historic maps, converting addresses to mapped locations through geocoding, mapping Global Positioning System datasets, and using Google Maps to create a HyperCities project.

We believe folks who invest the time to write easy-to-follow tutorials should receive credit for their work.  Is that you?  Then submit your own work to our supportive review board:

• Patrick Florance-Tufts University
• Chris Gist-University of Virginia
• Tracey Hughes-University of California, San Diego
• Kelly Johnston-University of Virginia, Editor
• Scott Nesbit-University of Richmond
• Bethany Nowviskie-University of Virginia
• Diana Stuart Sinton-University of Redlands
• Ginny White-University of Oregon

Our simple process: two reviewers take each submission for a spin to confirm the process is easy to follow, jargon free,  and just works.  Then with consensus, we publish.  If you’d like to volunteer to be called upon as a peer reviewer alongside our current review board please contact me.

I serve as the Step by Step editor and along with my colleagues on the review board we look forward to your contributions.  Check the site for more information: http://spatial.scholarslab.org/step-by-step

In the Scholars’ Lab, we’re all about the spatial goodness.   Inspired by Kansas State University’s Seven Deadly Sins maps, we set about converting the qualities of life, liberty, and the pursuit of happiness into quantities we could visualize through maps.  Brainstorming commenced on how best to measure the unmeasurable.   Mappiness ensued.

We calculated a score for Life, for Liberty, and for the Pursuit of Happiness for each county in the continental U.S. and mapped how each county’s score deviated from the mean.  So our maps highlight extremes, both high and low.

Life mapped combined male and female Life Expectancy At Birth data for 1999.

Liberty mapped US Census datasets for 2000 to measure the institutionalized population as a percent of the total population.

Pursuit of Happiness mapped the ratio of arts, entertainment, and recreation establishments to the total population from the 2002 US Economic Census.

Transforming datasets from a spreadsheet to a map takes advantage of our human ability to consume mass quantities of information visually.  Rows of numbers stashed away in academic journals and US Census tables come alive when mapped to show comparisons with their neighbors both near and far.  Patterns and clusters appear.  New questions are asked. New answers come.  New maps emerge.

And here’s good news:  If you find our measures of Mr. Jefferson’s famous phrase lacking, software tools to combine and manipulate datasets that may share only common geographic markers can now make cartographers of us all.

Happy mapping!

http://spatial.scholarslab.org/

This site responds to needs identified in conversation with our 21 Institute faculty members and 56 participants (humanities scholars, software developers, and map & GIS librarians). It includes:

• an evolving, crowdsourced catalog of research resources, projects, and organizations;
• a set of framing essays on the spatial turn across the disciplines by Dr. Jo Guldi of the Harvard Society of Fellows;
• GIS-related feeds from Q&A sites and other forms of social media;
• and a peer-reviewed, occasional publication for step-by-step tutorials in spatial tools and methods.

Please help us keep this resource current by contributing to it! You can:

• use Zotero to freely upload research citations, projects, and links to groups;
• contribute your own tutorials and helpsheets in “Step By Step” format for peer review and formal publication;
• adopt the #geoinst hashtag on Twitter and Delicious;
• ask related questions and offer help on DH Answers or the GIS Stack Exchange;
• and post your commentary on the essays we’ve shared.

Learn more about our NEH Institute:

http://spatial.scholarslab.org/about/

and about how you can contribute to the “Spatial Humanities” site:

http://spatial.scholarslab.org/contribute/

Many thanks to the NEH, the staff of the Scholars’ Lab, our Institute advisory board and faculty, and the scores of Institute participants and fellows who helped to define the project!

The Omeka + Neatline project’s goal is to enable scholars, students, and library and museum professionals to create geospatial and temporal visualizations of archival collections using a Neatline toolset within CHNM’s popular, open source Omeka exhibition platform. Neatline, a “contribution to interpretive humanities scholarship in the visual vernacular,” is a project of the UVa Library Scholars’ Lab, originally bolstered by a Start-Up Grant from the Office of Digital Humanities at the National Endowment for the Humanities. Omeka is an award-winning web-publishing platform for the display of cultural heritage and scholarly collections and exhibits, funded by the Institute of Museum and Library Services, Alfred P. Sloan Foundation, Andrew W. Mellon Foundation, and Samuel H. Kress Foundation.

This two-year initiative will allow CHNM and the Scholars’ Lab to expand and regularize a partnership that developed informally between the two centers over the course of the past year. Collaboration has already resulted in improvements to the core functionality of Omeka by CHNM and has led the Scholars’ Lab to produce a number of prototype plugins making Omeka a more attractive and viable option for scholarly partnerships with larger libraries and cultural heritage institutions. These include: improved data import (including EAD, a common archival standard); Solr-powered searching and browsing; and Fedora-based repository services. Further development will improve existing plugins, add preservation workflows, and refine the Neatline toolset for integration and sophisticated editing and scholarly annotation of historical maps, GIS layers, and timelines. Enhancements to Omeka’s core APIs, improved documentation, regular “point” releases, and a new Exhibit Builder will strengthen Omeka’s already large and robust user and developer communities.

Omeka + Neatline is one of six contract awards made by the Library of Congress in a program that aims both to improve the Library’s own content management and content delivery infrastructure and to contribute to collaborative knowledge sharing among broader communities concerned with the sustainability and accessibility of digital content. In July of 2010, the Library of Congress targeted approximately $3,000,000 toward Broad Agency Announcements covering three areas of research interest related to these goals. Technical proposals were openly solicited from expert, multi-disciplinary communities in both academic and commercial settings in three areas: Ingest for Digital Content, Data Modeling of Legislative Information, and Open Source Software for Digital Content Delivery.

In addition to guiding software development work at the Scholars’ Lab and CHNM, project directors Tom Scheinfeldt and Bethany Nowviskie will use the Omeka + Neatline project as an opportunity to document and disseminate a model for open source, developer-level collaborations among library labs and digital humanities centers.

I originally went to Social Explorer (SE) to view and map the data. While SE allowed me to easily view data and make some quick thematic maps, it has some limitations. SE only allows you to map one attribute at a time and does not allow for custom attributes (like the rate change in bicycle riding between 2005 and 2009). Also SE only goes back to 2006 for the ACS.  My journey next took me to American FactFinder (AFF), the U.S. Census’s data portal.

In AFF, I was able to get all the transportation survey data and decided to map rate changes in mass transit, bicycling and walking.  I had to manipulate the downloaded Excel file to make it “GIS ready.”

There are some interesting things going on within this map.  First, why do a majority of the counties have no data?  The ACS only surveys communities with greater than 65K in population.  Therefore, a majority of U.S. counties are not included in the ACS.  Several counties have data for either 2005 or 2009 but rate change can only be calculated for counties with both.  Secondly, how can adjacent counties have such wild differences in rates of change for bicycle usage?  This question is much tougher to answer.  However, the most likely issue is inaccuracies in the ACS survey results stemming from small sample sizes and differences in the way questions are asked.  The LAB article does mention these issues in passing.

Keeping in mind the classification bins are not uniform across these maps, I think there may be some interesting parallels between counties that have lost mass transit and gained walkers/bicyclists, etc.

I made a few more maps showing the density of cyclists in 2005 and 2009 at a larger scale.

If you would like more information about the U.S. Census, the ACS, Social Explorer, GIS or bicycling, please contact me at cgist[at]virginia.edu.  Larger version of the maps are also available.

• Identifying map projections and coordinate systems
• Interpreting map scale
• Understanding techniques of cartographic relief
• Interpolating latitude & longitude
• Calculating geographic extent rectangles

Too easy?  Well the profession I’m describing is not Geographic Information Systems guru or Cartographer or Neogeographer.   In fact, my list describes just a few of the skills you’ll need to be a first-rate Map Cataloger.

Thanks to a thoughtful invitation from Jennifer Roper, I learned a bit about map cataloging alongside her UVA Library Cataloging and Metadata Services team at a workshop led by one of the very best, Paige Andrew of Penn State University.  Of course Mr. Andrew sports a world map necktie.

The session made clear to me many of the skills needed to be a strong map cataloger are the same skills needed to be proficient in Geographic Information Systems.  That skills list above would serve as a good starting outline for a GIS 101 syllabus and all those skills are key to the map cataloging workflow.

And Mr. Andrew’s traveling map collection was a treat to explore with examples of bleeding edge maps, segmented maps, pop-up maps, remote sensing maps, tourist maps, and maps with and without covers and neatlines.  Who knew map catalogers must be skilled in both map unfolding for preservation and map re-folding (harder!) for panel measurements.

Today was eye-opening for me in thinking about using a geographic search to discover paper maps in a library catalog.  With catalogers now capturing the latitude and longitude of each corner of the map as part of their workflow, finding every paper map that intersects any point on the earth becomes possible.  It’s sometimes called searching by geographic extent.  Just point to any spot on a map of the world and find all the maps in the collection that cover that spot.

Geographic search relies on the kind of extent rectangle metadata map catalogers now create every day.  We’ve implemented geographic search for digital datasets in our GIS Portal http://gis.lib.virginia.edu by creating just such extent rectangle metadata for every digital dataset.

Seems map catalogers are setting the stage for that same kind of discovery for paper map collections.  Paper maps are getting smarter every day.

All two-dimensional maps (as opposed to globes) are projected. That is, the curved three-dimensional surface of the Earth is transformed onto a flat two-dimensional surface. This can be done in an infinite variety of ways, many of which have been mathematically characterized and named by cartographers, for whom they are necessary tools. We must note, however, that no such transform can obtain a perfect representation of a section of the Earth. The mapmaker must choose which qualities to preserve and in what measures. Is it more important to provide an accurate depiction of relative areas or of relative lengths? Is the area around Greenland to be kept in the focus of accuracy, or that around New Zealand?

Each map therefore carries with it from its creation certain choices like these, part of the arguments the map makes about the world by its very construction. We chose WMS on which to start building our tools because, amongst other reasons, it allows for the transmission of projection information as part of its operation. This fact allows us to produce imagery from historical maps (themselves in any number of projections) and maintain the original choices the mapmaker made. Google Maps and Open Street Map are not WMS sources. They can be described as tile caches, huge reservoirs of rendered imagery. As such, they offer their own choices about how the world is to be projected. (Google’s choice has become so closely associated with Google that it is known widely as “the Google projection”.)

Now we come to an important technical distinction; WMS services are able (depending on the capabilities of the specific software in use) to reproject their contents. That is, in response to a specific request for imagery, they can produce the imagery in a projection different from the one in which it was stored. GeoServer, the software we are using for Neatline, has a library of thousands of projections to which users can add more as desired. This allows us to take imagery from a WMS source and lay it under a historical map layer while maintaining the original projection for that of the map as a whole. Tile caches, by and large, do not allow for this. (Google Maps offers its one projection, and Open Street Map offers two.) This means that in order to lay historical map imagery over a layer from one of these sources, we would have to reproject the foreground (historical imagery) overriding the choices of the mapmaker and introducing additional choices of our own about what facets of the geographies at stake are to be preserved and which abandoned.

(Neogeographers will remark that georectifying a digital image introduces similar issues. This is true, but unavoidable for our purposes. We would like to avoid compounding the matter in a way that is subtle and hard to detect.)

We are working out means by which we can provide the undeniable utility of popular tilecaching services in a way that is respectful of the historical context and story of map artifacts. Until we do, we will continue to concentrate on the more flexible and sophisticated apparatus provided by WMS.

Jean Bauer, former Scholars’ Lab Graduate Fellow in Digital Humanities announces: “I have just released my first open source project. HUZZAH!”

DAVILA is a database schema visualization/annotation tool that creates “humanist readable” technical diagrams. It is written in Processing with the toxiclibs physics library and released under GPLv3. DAVILA takes in the database’s schema and a pipe separated customization file and uses them to produce an interactive, color-coded, annotated diagram similar in format to UML. There are many applications that will create technical diagrams based on database schema, but as a digital humanist I require more than they can provide.

Technical diagrams are wonderfully compact ways of conveying information about extremely complex systems. But they only work for people who have been trained to read them. If you design a database for a historian, and then hand him or her a basic E-R or UML diagram, you will end up explaining the diagram’s nomenclature before you can talk about the database (and oftentimes you run out of time before getting back to the research question underlying the database). This removes the major advantage of technical diagrams and can also create an unnecessary divide between the technical and non-technical members of a digital humanities development team.

I have become fascinated by how documenting a project (either in development or after release) can build community. I’m not just talking about user generated documentation (ala wikis), but rather the feeling created by a diagram or README file that really takes the time to explain how the software works and why it works the way it does. There is a generosity and even warmth that comes from thoughtful, helpful documentation, just as inadequate documentation can make someone feel stupid, slighted, or unwanted as a user/developer. I will be writing on this topic more in the months to come (perhaps leading up to an article). In the meantime, check out DAVILA and let me know what you think.

Project homepage: http://www.jeanbauer.com/davila.html

We’re developing a new web-based tool for visualizing these historic boundary changes and it’s nearly ready for prime time.  We’ll announce the beta release here soon.

So with the knowledge that US state boundaries have already been subject to drastic change over time, let’s have some fun with geographic information systems to visualize drastic mathematically-induced changes to those familiar US state boundaries.

For our experiment, let’s keep all our current state capital cities right where they are since they are laden with the necessary infrastructure of government.  But we’ll move the state boundary lines Voronoi-style so anywhere you travel in each of our new states you’ll be closer to the state capital than any other state capital.  In other words, when you’re standing anywhere inside our newly outlined Virginia, you will always be closer to the Virginia state capital, Richmond, than any other state capital.  That seems very efficient.  Let’s have a look.

Here’s that familiar grade-school wall map of the lower 48 US states and their capital cities.   Now let’s tweak the map with GIS software to reconfigure the states, Voronoi-style.

Wow, what a difference Voronoi makes.

Let’s measure just how much the states have changed in our new layout.   In absolute terms, Utah and New Mexico make the biggest land grabs while Texas and California lose the most real estate.  But as a percentage of their current area, Rhode Island is the big winner ballooning in size by over 240% while Massachusetts shrinks 60%.

To visualize the state-by-state changes, Todd Burks from neighboring Clemons Library overlayed the two maps.

Intrigued?  Read more about Voronoi and Thiessen polygon GIS techniques.

Hello. In my last blog, I began my discussion of Pandora.com, the streaming audio website which offers a new kind of web radio to listeners. Enter a “seed” song into Pandora’s search engine, and the site will create a streaming “station” composed of songs that resemble your seed song. This process is powered by the Music Genome Project, a massive research endeavor which began in the early 2000s and is based out of the company’s Oakland, California headquarters.

How is Pandora’s song-recommendation engine different than web radio platforms that came before it? Well, the majority of other online radio stations, such as last.fm, operate off a system called collaborative filtering. What is collaborative filtering? In layperson’s terms, collaborative filtering involves matching one user’s taste to another’s (or a series of other people). On a site like last.fm, over time a user amasses a playlist of songs they’ve expressed a preference for—a sort of musical taste profile. Last.fm’s search tools automatically identify other users with whom your tastes seem to overlap, and uses this information to power “radio” stations you can stream on the site. The process is pretty simple, and based on personal intuition and the data existing users have already entered into the system. Collaborative filtering powers aspects of many media websites, such as Amazon.com’s personal recommendation feature for shoppers.

It does have some limitations for online radio listeners, however. As Pandora’s founder Tim Westergren pointed out in a 2006 interview with Leo Laporte and Amber MacArthur, collaborative filtering-powered online radio stations have a tendency to only recommend what is broadly popular in contemporary pop music. While independent-label music certainly has a strong presence on last.fm, a quick scan of various users’ profiles on the site may suggest that Westergren has a point. Even among “indie” users on last.fm, there’s a whole lot of Death Cab for Cutie and Modest Mouse ruling the playlists (nothing against either of these bands). Collaborative filtering doesn’t necessarily ensure that the site’s users will discover truly obscure stuff they hadn’t heard of before. And in keeping with my interest in genre boundaries vis-à-vis Internet radio, in interviews Westergren has attributed the problem to the mainstream music business’ interest in keeping consumers bracketed into genre-specific niches. In the aforementioned chat with Laporte and MacArthur, Westergren cited the “age-old problem in the music industry” wherein a tiny percentage of music released by a given label typically accounts for nearly all its sales—a problem codified by genre boundaries.

Pandora, through its Music Genome Project, aims to circumvent this problem, by offering its users a new kind of recommendation engine. As I mentioned in my earlier post, the Music Genome is a systematic endeavor to deconstruct and analyze individual pop songs using over 400 “musical attributes” that the company has identified. These attributes include everything from tempo, to vocal timbre, to harmonic movement—even sound production aspects like echo and reverb. In other words, it is essentially a musicological approach in the strictest sense of the word. The focus is on sound itself, rather than a band’s cultural associations with other bands (as is the case in collaborative filtering). Indeed, Westergren bragged in the aforementioned interview that “when we recommend to you a piece of music, we don’t even know how popular it is.”

Instead, what the Music Genome Project entails is the company’s roughly fifty analysts sitting down in the Oakland, CA headquarters and methodically tagging a given song using these 400+ attributes. Westergren has described the process in ways akin to the scientific method, noting that a percentage of songs the analysts deconstruct are reviewed twice for quality. The songs, categorized by attributes, are added to the Project’s over 500,000 songs (and counting) accumulating in the company’s database. Songs sharing a similar musical “DNA” are then automatically matched and linked by Pandora’s search engine when you enter in a “seed” song. Westergren has called the Genome “kind of like a musical taxonomy,” and I don’t think this language is accidental. As Fabian Holt has pointed out about musical genres, “Discourse on the temporal dimensions of categories is saturated with organicist metaphors, as in discussions of how genres are born, how they grow, mature, branch off, explode, and die.”1 Even though Pandora in fact aims to get around genre, it seems to me that this biologic language informs the company’s mission and direction.

In any case, as a Pandora user, I have often benefited from the happy accidents occasioned by the way the Music Genome Project works. For instance, I entered in Pandora as a “seed” Bob Dylan’s song “Tonight I’ll Be Staying Here With You”, a lilting, mid-tempo country-rock stroll. The Genome built a streaming station for me that included folk-rocky chestnuts by relatively obscure ‘60s and ‘70s groups like UFO and Earth Opera. It’s likely that I would not have heard about these groups without Pandora, or at least that I would’ve heard about them years from now in another context. In this regard, it seems that Westergren does have something to boast about regarding his claim that Pandora’s search engine connects listeners with “invisible” music in a way that mainstream, genre-bound, multinational music corporations just can’t.

On the other hand, there are several notable gaps in the logic and execution of Pandora and the Music Genome Project model. The first gap I feel compelled to point out is a very practical one. Returning to my example of the station based around “Tonight I’ll Be Staying Here With You,” Pandora is skilled in giving a user a lot of what they like. Enter in a twangy rock song like Dylan’s and you’ll get a station with loads of twangy rock songs. But there can be too much of a good thing; namely, I find homogeneity of songs’ tempo an issue on Pandora stations. “Tonight I’ll Be Staying Here With You” is a bit plodding, and I’ve found that over a few hours of playing this station, I mostly get one plodding song after the next. This can be useful in terms of finding hidden gems, but makes for monotonous, even frustrating listening over a span of a few hours.

I do know that Pandora makes much of its “Thumbs Up/Thumbs Down” feature, which allows the user to indicate her or his preference for a given song. Pandora’s algorithms will adjust the playlist’s direction (ever so slightly) upon a “Thumbs Down” for a song you don’t care for. In a 2006 interview with the New York Times, Westergren describes this feature as a concession to human subjectivity (within an otherwise “objective” platform), and I agree. The “Thumbs Up/Thumbs Down” feature requires active listening and participation on the user’s part—generally a good thing, I’ll admit. But what if I want to just sit back with a cold beverage and let the music play? The Genome’s platform, as it currently works, seems unable to deliver the ebbs and flows in tempo and musical texture which I enjoy in a good mixtape or college radio show.

These kind of practical gaps in Pandora’s service point me toward a larger theoretical problem worth discussing. In its insistence upon musical sound as the key ingredient for making song recommendations, the Music Genome Project willingly suspends belief in some basic social facts about the way music works. Music is undeniably social, cultural, and political. It’s the soundtrack to our lives as we dance, eat dinner, exercise, commute to work, fall in love, and so on. Music blasts out of loudspeakers at political rallies. We argue with friends over drinks about the relative merit of this or that musical group. And music is always part of a commercial marketplace, even in this age of file-sharing. Given all this, I find Westergren’s claim that a band’s marketplace popularity is “completely irrelevant to what we do” a wee bit disingenuous, or at the very least requiring a willing suspension of disbelief regarding music’s social and marketplace role.

The Music Genome Project’s near-exclusive focus on sound itself, coupled with its organicist rhetoric regarding “musical DNA”, seems to suggest the company believes it can map out music in its totality—that it can “crack the code” of music, so to speak. As an aspiring musicologist, this reminds me a bit of another massive scholarly endeavor which worked toward a similar goal of cataloging music: Alan Lomax’s Cantometrics project. Developed by Lomax in the late 1950s and into the ‘60s, Cantometrics was a project wherein Lomax and several co-researchers analyzed the performance styles of (mostly traditional “folk”) songs from hundreds of different cultures around the world, tagging them with a variety of traits. These performance traits, such as vocal timbre, were organized into a computerized system wherein elements of the different musics could be compared. Lomax made the bold claim that one could draw conclusions about the social structure of a given society based on some of these performance traits (societies noted for a certain style of singing were sexually repressive, for instance). Of course, this claim was quite controversial, and has been challenged by other scholars since as overly reductive and essentialist. Fortunately, the Music Genome Project doesn’t attempt to make the connection between music and social structures the way Cantometrics did; indeed, as I said, the Genome Project’s rhetoric seems to deny aspects of the social world, if anything.

However, in the desire to systematically categorize and compare different aspects of music, one could say that the Genome Project and Cantometrics spring from a shared wellspring of human curiosity. One issue with this categorizing mission, though, is the problem of sample size. Lomax’s research was criticized for not casting a broad enough net in collecting these comparable performance traits. One could ask similar questions about the Music Genome Project’s scope. As I mentioned, the company’s website points out that its database currently features over 500,000 songs, and counting. This seems like a lot, but how useful is that number, when one considers the thousands and thousands of songs which are released commercially every year? And how can one ensure that multiple varieties, styles, and (yes, even) genres of music are adequately represented within those 500,000 songs?

Additionally, Pandora shares potentially problematic assumptions with Cantometrics regarding humans’ ability to fully categorize and catalog the world, to reduce music to its essence. This descends from the Enlightenment idea that our natural world is fully knowable through empirical and objective observation. That bedrock assumption has been the basis for the natural sciences, and one can see its influence on a project like Alan Lomax’s. The problem is: while an empirical observation approach might work well for classifying different varieties of tree frogs, when one wades into the murky waters of human behavior, it’s a lot more difficult to claim objectivity. Indeed, for myself and for a growing number of musicologists and humanities scholars more broadly, it is basically impossible to claim objectivity in one’s understanding of the world.

This is not to say that Pandora explicitly makes a claim of total objectivity, on their website or elsewhere. But as with Cantometrics, the fact that the company breaks songs down into discrete components and then makes comparisons and connections based on those components suggests that they believe music is knowable in some objective way. Pandora hasn’t made public a list of its over 400 “musical attributes”, but shares a handful of them on their website’s Frequently Asked Questions page. Some of the attributes they share make a lot of sense, and could even be called “objective”: major or minor key tonality, for instance. But consider an attribute like “headnodic beats”: in its FAQ entry, Pandora’s analysts admit they created the term themselves (it describes hip-hop beats which are strong, but not forceful enough to dance to). Given that probably almost no one outside of the Pandora offices uses this term, it can’t reasonably be called objective. This is not to say that an identification of some subjectivity within Pandora’s research model makes the whole enterprise come crashing down. Rather, I just wish to point out that while company prides itself on the cold objectivity of a computer algorithm choosing your music for you, human beings with subjective viewpoints created the components which power that algorithm.

Related to this, both Pandora and Cantometrics raise questions regarding musical gatekeepers, tastemakers, and their authority. Indeed, as ethnomusicologist Steven Feld has mused in response to Lomax’s work, “What are the sources of authority, wisdom, and legitimacy about sounds and music? Who can know about sound? Is musical knowledge public, private, ritual, esoteric?”.2 Many researchers of pop music, pop culture, and genre agree that this issue of who is doing the classifying, categorizing, and ranking is a really important question. For instance, snobby clerks at your local independent record store may decide that Gillian Welch’s music belongs in the “folk” rather than “rock” section of the store. But where does the authority behind their judgment come from?   Their judgment is informed by their life experiences and backgrounds as (mostly) well-educated middle-class white males.

These gatekeepers’ judgments are also informed by a deep knowledge of various musical genres: the ability to distinguish glam from punk from grunge, and so on. Since Pandora’s fifty music analysts perform a similar function, I find this aspect of their job paradoxical: though the company seems to pride itself on getting beyond musical genre, these analysts must be extremely well-versed in genre in order to do their jobs well. In a recent video post on Pandora’s blog, Westergren states that the purpose of the Music Genome Project is ultimately to connect musicians with audiences, in ways the traditional music business can’t.3 This is notably egalitarian rhetoric; it works off the assumption that consumers and musicians are empowered enough to seek each other out, and that they don’t need tastemakers dictating what music they should like.

As I noted above, however, the computerized system that listeners use to connect with musicians is designed and maintained by a group of (relatively) elite tastemakers. And in Westergren’s public statements about these analysts’ qualifications, I read a certain degree of anxiety over what kind of authority is vested in that role of analyst. In his 2006 interview with Leo Laporte and Amber MacArthur, Westergren pointed out that while all their analysts are regularly-gigging musicians, in order to carry out the depth of analysis required for the Music Genome Project, one really “need[s] an academic background”. Thus, in addition to being a working musician, an analyst employed by Pandora also needs at least a four-year undergraduate degree in music theory.

On a practical level, this makes a lot of sense to me. If you’re going to employ folks to analyze songs for you, wouldn’t you want them to have an understanding of musical principles on several different levels? On the other hand, on a theoretical level, Pandora’s insistence on both “street” and “book” smarts from its analysts demonstrates an unresolved subliminal conflict over whether “brains and corporate no-how” or “gut, ‘Id’ feelings” are what shape the music we listen to. Thus, in this way, Pandora and the Music Genome Project struggle with these issues of taste and knowledge hierarchies just like other public pop prognosticators, even as their seemingly objective research platform denies this social fact.

This may read as though I am beating up on Pandora, but I hope the position I’m staking out is subtler than that. Rather, I have simply been attempting to point out some slight contradictions of logic within the Music Genome Project’s overall research platform. On a practical, user’s level, I enjoy the site. And to be fair to Pandora’s employees, on a certain level they seem to recognize the issues I am brining up here. For instance, in a recent post on Pandora’s official blog by one of its music analysts, Michael Zapruder likens evaluating songs to judging a baby beauty contest, and then points out,

“The idea that all music is equal and deserves equal rights is somehow fundamentally a democratic idea; as is the corresponding idea that the public, and not some small cadre of experts, is the best judge of musical quality. But the fact that some music not only attracts more listeners, but also seems to mean more to more people over a longer period of time, indicates that there is actually something fundamentally unequal about music as well.”4

In other words, perhaps this issue of taste isn’t an “either/or” problem, but rather a “both/and” one. And by its nature, it’s most likely a problem with no definitive answer.

It seems that in his blog entry, Pandora employees like Zapruder are trying to find a practical, everyday way of working around and through this problem—and I can’t fault them for that. Certainly, the academic in me bristles when I see Pandora present something like “headnodic beats” as some kind of objective criteria for judging music. But on a practical level, it seems that these classifications, even if they’re vague (such as “vinyl ambience,” or what have you) are perhaps vague at least partly in the service of the listener’s experience—of trying to match users to interesting new music. It doesn’t seem that the point of the Genome is to categorize musical attributes simply for the sake of categorization. Rather, the point seems to be to put that information to use, making musical connections for the listener. So perhaps it’s a utilitarian reason why the Music Genome cuts certain logical corners on the “objective vs. subjective” question.

Ultimately, Pandora’s service rests upon the assumption that sound itself is the only aspect which really matters when analyzing different forms of music. It assumes that sound automatically trumps the sociocultural boundaries of genre, taste, and marketplace. This isn’t true, of course: in the real world we live in, rhetoric surrounding genre and taste guide the musical choices we all make, from Walmart AC/DC lovers to bebop nerds. But the Music Genome Project’s fiction regarding the supremacy of sound is an important, if very one-sided, position to have out there in the world. In fact, it’s almost counter-cultural in a way, because journalists and advertisers often focus so much on image when considering contemporary pop music. Pandora’s vision is a kind of imagined musical utopia, making a particularly 21st-century-specific stand for the importance of musical sound—a stand made possible by the shared cultural resource of the Internet.

Finally, closing with an idea my professor Fred Maus pointed out to me, when you’re confronted with enjoying a song you didn’t think you would like on Pandora (you enter in a Turbonegro song as your “seed” and are rewarded with a Poison song, for example), that tells us something important about genre boundaries. Your bemusement proves that musical genres exist. They’re cultural; they don’t hold up to objective scrutiny. And they’re based on something more than just musical sound; they’re built around assumptions that have to do with hierarchies of taste and class. Thus, paradoxically, we can learn quite a bit about the rules of genre from a website devoted to transcending those rules.

This past January, I began tracking the blog traffic by using Google Analytics. This service monitors the physical location of site visitors and their interactions with the pages on the site. The geographical data are analyzed in terms of the number of visits per unit of geographical organization such as city, country/territory, sub continent region, and continent.  This information is also visualized in the form of an interactive map on which users can zoom in and out of specific locales and find site visit patterns specific to cities, countries, regions, or continents in the world.

Over the last four months, I have been playing with the May Overlay function projecting geospatial patterns of the site traffic on my blog. These interactive moments have helped me imagine interesting questions such as: What is the geography of an electronic community based on the topic of “Asian American music,” the tagline of my blog? What does the geo-spatial terrain of this “digital diaspora” look like? Are there any striking patterns at each of the organizational level namely, the city, country, sub-continental region, and continent? What spatial boundaries are transcended and created in these visualizations? Or, fancifully, how does the digital geography of my blog reconfigure the more general social geography of “Asian America” online or offline?

Today marks a 4-month anniversary of this thought experiment. I decided to take some screen shots of a few of the visualizations that I’ve found more meaningful in Google Analytics. This analysis uses data from a sample of 3,061 site visits collected from January 1 to April 30, 2009. I will highlight a few interesting findings below:

1) Here’s a map of blog visits in various U.S. cities. It appears that the visitors are concentrated in central Virginia (the home of yours truly), New York City, Boulder, Los Angeles, and San Francisco. Other than central Virginia and Boulder, these are areas of high concentration of Asian Americans and indie rock activities. I’m not quite sure how to explain the traffic flow from the Denver area (Boulder and Aurora, ranked sixth in this map) other than to link it to the thriving indie rock scene in Boulder and the physical location of an Asian/Japanese music blogger Shay of Sparkplugged.

2) According to this chart, 76% of the site visits have occurred within the boundaries of the United States. Next on the list are Canada, United Kingdom, and Australia, all English-speaking countries with close historical ties to American music. In the continent of Asia, countries such as Taiwan, South Korea, the Philippines, and Singapore have among the highest number of visitors to my site. I attribute this pattern to my blog posts about U.S.-based artists who have a large following in these particular countries. Specifically, Hsu-nami (of New Jersey) and Johnny Hi-Fi (SF-based) has strong ties to Taiwan; Kite Operations (New-York) to South Korea; Plus/Minus (New York) to the Philippines and Taiwan.

3) This last chart represents the sub-continental spread of the site visits. North America takes the lead (taking 80% of all visits). Northern Europe and Eastern Asia tie as second, followed by South-Eastern Asian and Western Europe. I’m not quite sure how to explain the high number of visits from Northern Europe other than to link it to the popularity of a Taiwanese metal band Chthonic in North Europe. Chthonic has a strong international presence, having worked with producers in Denmark and the U.S. including Rob Caggiano, the guitarist of Anthrax. In 2007, Chthonic toured with the OzzFest and established close ties with Taiwanese-American-led erhu rock group Hsu-nami.

So what does this all mean? YellowBuzz, a blog on “Asian American music”, has constructed a global, transnational readership. Asian America in the online digital environment exists beyond the boundaries of the United States and the Asian continent. These observations of transnational crossings work against the geography of Orientalism: a now-classical theory within postcolonial studies that refers the representational control of the non-west by western-produced discourse.  The digital diaspora of YellowBuzz has tampered with the so-called east-west binary.

Now if I were serious about pursuing the research on the transnationality of Internet music journalism, I would look for a correlation between blog content and traffic patterns. This would require systematic, post-to-post observations. I would also consider mapping information regarding Internet access and user demographic with the intention to find links between the blog statistics and general Internet sociality. I would also look for statistical and mapping methods more powerful than Google Analytics.

But – to get back to my dissertation that asks: What paths do musicians and their music take as they establish routes crossing territories constructed by nation-states, corporations, international laws, etc? Unfortunately, these visualizations lack the analytical strength to provide an insight on the musicians’ perspective on the scene. They have offered a perspective on media, in particular in understanding the role of a music blog in constructing “Asian America.”

In the coming months, I will be working on a digital humanities project with Joe Gilbert at UVa’s Scholars’ Lab pursuing questions related to the musicians’ side of the story. I hope to unravel the terrain of musicians’ sociality within the transnational scene of indie rock music by mapping out their tours, social networks on (SNS), and record distribution. Meanwhile, I’m experiencing a bout of euphoria loving the fact that I have reclaimed a free market analytical tool offered by Google for my academic(-y) ethnomusicological thought experiment.

My point being, popular music can be difficult to pin down using genre tags. You’ll find this evidenced in any number of press interviews with musicians who, when pressed by a journalist, pull out that time-worn chesnut that their sound is “unclassifiable”. Genre tags, be it pop, country, rock, hip-hop, salsa, what have you are almost like identifying pornography: I’ll know it when I see it. It’s often somewhat easier to identify what a genre isn’t than what it actually is. Fans and even so-called experts often have difficulty articulating why a particular song or artist fits in a given genre. Based on my readings for this exam topic thus far, I would argue this is because the act of classifying something is essentially making a statement about its meaning: not just semantic/musical meaning, but also meaning that’s intensely cultural, and often political.

That’s why I like musicologist Robert Walser’s definition of genre in popular music. Updating similar ideas that literary critic Tzvetan Todorov has explored, Walser argues that “Genres…come to function as horizons of expectations for readers (or listeners) and as models of composition for authors (or musicians).”[1] In other words, genres labels are modes of discourse wherein musicians, fans, and music industry workers collaborate to make meaning surrounding the music they love. And perhaps surrounding is the key word, there; one can debate about styles of music with a friend all night long, or a record store employee can create increasingly hyper-specialized bin cards for various sub-genres (Psychobilly, Krautrock, etc.). We circle around the sounds we hear through discourse about them, but ultimately, on a musical-sound level, how do we know that Beck belongs in the “rock” section? As Franco Fabbri has noted, problems with genre are “frontier” problems: “We meet with these whenever we attempt to indicate something which exists at the boundary of two or three zones of meaning.”[2] When considering genre tags, there seems to exist an inescapable gap between our need to accurately label a piece of music and the slippery semantic meanings of recorded sound, which may in any given moment resemble two, three, or even more genres.

What then, friends, does this problem have to do with digital humanities? Well, as I research and read in preparation for this exam, I can’t help but frequently think of an Internet service called Pandora that’s richly illustrative of many of these genre issues. For those who may not know, Pandora, a free website based out of Oakland, California since the early ‘00s, is a relatively new and different kind of streaming online radio station. Whereas the playlist at a streaming station such as UVa’s own WTJU is determined by in-the-studio DJs, and the “radio” playlist at a website such as last.fm is determined by a process called collaborative filtering (more on this in my next blog), Pandora is notable for its novel method of selecting songs for listeners. Here’s how it works: enter an artist or song into Pandora’s search engine, and the website will issue you a streaming series of songs by artists considered similar to the one you entered. And how is this similarity determined? Through the Music Genome Project, Pandora’s massive undertaking and claim to fame.

The Music Genome Project, whose work is carried out by roughly fifty analysts at the company’s headquarters in Oakland, is an effort to deconstruct and categorize aspects of pop songs using over 400 different “musical attributes” that the company believes comprise the spectrum of recorded sound. It’s a rigorous close-listening endeavor, specifically intended to focus on aspects like timbre, tempo, harmonic movement, and instrumentation instead of aspects like album art and whether or not the artist has appeared on TRL. This scientific (or pseudo-scientific, depending upon one’s perspective) attention to sonic detail seems—to me at least—an attempt to get beyond the established languages of pop music genres by diving into the nitty-gritty which makes genres what they are. The company builds its credibility as an almost-biologic “genome” of musical characteristics through the depth and breadth of songs it has analyzed: over half a million and counting, according to Pandora’s website. Pandora says that each of these songs is listened to for 20 to 30 minutes by a trained analyst who tags the song with Pandora-authored characteristics—everything from “meandering melodic phrasing” to “chopped and screwed production”. The company claims that theirs is the most comprehensive effort to systematically categorize music—ever.

From the perspective of an academic studying pop music genres, the Music Genome Project presents several fascinating issues. Until my next blog, I’ll briefly set aside an investigation of the company’s claim it can create a taxonomy of the “genes” of popular music. Instead, what I first find most interesting is the story of Pandora and the Music Genome Project’s origins. In a January 2006 interview with podcast program “Inside the Net”, Pandora co-founder Tim Westergren told hosts Leo Laporte and Amber MacArthur that he first originated the idea of a music genome while a struggling rock musician himself. He told them his band was “facing the challenge of trying to get known,” and in so doing brainstorming about what aspects of a rock song tend to attract the most commercial attention. Additionally, Westergren shared the intriguing information that he was a film composer at the same time, working for hire to complement a director’s visuals in a given scene. He told Laporte and MacArthur that “In that capacity, one of the things that I had to do was to try and figure out the music taste of a film director.” Westergren said that this challenge was part of what got him thinking about music in terms of distinct, differentiable attributes.

It just so happens that one of my other exam topics this semester concerns film music soundtracks. Having read much of the academic literature on film music, what Westergren recounts here is fascinating—and doesn’t surprise me. The specific challenges a composer faces when working on a film—How do I balance my need to please the director with my need to express personal creativity?—is a central theme of the literature. Scholars even further back than Irwin Bazelon in 1975 have remarked that the collaboration is by nature difficult, “since the composer spends his entire life in music, working out specific musical relationships, while the director spends his time out of music, involved full-time with films—a visual medium—and only part-time with music, as it affects his film”.[3] Even if the director is a fan of music and has interesting ideas about how she wants it used, if she’s not a musician herself she may have difficulty communicating concepts to the composer which can be actualized musically.

That challenge has interesting aspects as regards musical genre. On the one hand, bridging the communication gap between composer and director can often force each out of their comfort zone, resulting in new timbres, new melodies—innovation. Many pieces composed for film are quite short, maybe less than a minute in duration, so they often don’t have space in the film to unfold into full-blown genre exercises. This process of collaboration between sound and images in many ways results in the most “hybrid” music imaginable.

From another perspective, however, film music cues are also remarkably genre-bound. Not necessarily bound by musical genres per se (classical, country, pop, rock, etc.), but bound by the generic conventions of film itself. Due to the standardized production practices of most movies, film as a medium tends to be more amenable to genre classification—and soundtracks can play a key role in that[4]. For instance, soaring strings sketching out an American traditional folk or “cowboy” song, and the audience suddenly knows we’re in a Western. A minor key piano melody and a sultry saxophone, and we know we’re watching a film noir. Given that these generic conventions of film music most certainly exist, it makes me wonder what sorts of films Westergren was scoring as part of his job. Perhaps offbeat indie-Sundance dramas which were aiming for a kind of transcendence of genre strictures?

In any case, the fact that the Music Genome Project origin story involves the world of film music tells me that musical genre was on Westergren’s mind as he brainstormed—even if he sought to rebel against the concept. Additionally, the Project’s roots in soundtrack-for-hire work demonstrate that you can never take the music business out of the music: commercial forces and the presence of an paying audience (real or imagined) inflect in some way all decisions musicians and music industry workers make. As Westergren’s rock band tailoring their sound in an attempt to “get known” reminds us, market considerations are basically always in a dialectical relationship with “creativity” as a musical genre forms—and this includes classical and avant-garde genres which claim to be above that kind of stuff.

Given the commercialized roots of the Music Genome Project, it’s a bit surprising to me that the music industry has fought Pandora as tooth-and-nail as they have. It’s common knowledge that traditional AM/FM commercial radio has been the music industry’s biggest promotional tool during the 20^th century. But as traditional radio fades in influence and web radio such as Pandora ascends, the industry leaders have been notoriously less willing to jump onto the 21^st-century Internet bandwagon of music promotion.

Despite the fact that Pandora streams tracks instead of allowing users to illegally download—which means, in my opinion, that record company executives should be groveling at Pandora’s feet in thanks—the major-label music industry has seemed intent upon shutting them down. Or, to be more specific, the labels’ demands (through representative organization SoundExchange) for higher royalty payments created expenses Pandora was finding impossible to sustain. Following a federal board ruling mandating increased royalty rates for web radio, in August of last year the Washington Post quoted Westergren as saying Pandora was “approaching a pull-the-plug kind of decision”. On the brink of shutting down, Westergren appealed to the company’s subscribers to contact their local representatives on behalf of web radio—and the gambit seems to have worked. The ruling was reconsidered, and currently representatives from both web radio and the music industry are negotiating newer, more manageable royalty rates. Pandora seems to be approaching a delicate truce with the market forces which, to me, seem constitutive of its role as a source for promoting and discovering popular music. (In other words, what took the industry so long to accept current reality?)

In the next installment of this blog, I’ll continue my exploration of Pandora, especially the logic behind its attempt to map “genes” of music and to approach music in a mode somehow “beyond” genre.

The house in its final phase dates to the third century A.D. and exhibited some of the most complete eastern Roman mosaics, all of which were removed from the site following the 1930′s excavations and placed in American museums (including Richmond’s very own Virginia Museum of Fine Arts).  What better way to view the mosaics than to recreate the environment in which they existed?  Mosaics in museums are entirely out of their original context.  Many floor mosaics are now hanging on walls.  Even in occasions that museums create elaborate sets to mimick the rooms from which the artwork was taken, it is impossible to recreate the entire structure or accurately recreate the lighting and allow us to view the mosaics as the original owners of the House of the Drinking Contest would have.

In my previous project of modeling the House of the Faun, one of the largest houses in Pompeii, I had a lot of information to work with.  I had many photographs and artists’ reconstructions to consider.  While the ceilings and roofs are gone, the walls are still more or less intact, and so are many of the wall paintings.  The House of the Drinking Contest is much more of a challenge since the walls collapsed and were removed long ago, leaving at most a half a meter of brick and rubble left.  There are clues, however, that let us accurately estimate the height of the walls, and hence a full reconstruction.  The plan indicates that columns were about 0.9 meters in diameter.  From our knowledge of classical orders and the overall dimensions of the house and rooms, we can assume the columns would not have been Corinthian or Ionic since both would have been too out of proportion with respect to the rest of the house.  The reason is that Corinthian and Ionic columns have 10:1 and 9:1 height-to-diameter ratios, respectively.  We can then safely assume an average-height Doric colonnade at a 5.5:1 ratio.  Other clues and experimentation with natural light simulation allow us to predict plausible window locations.

(click for larger image)

Lighting simulation and computer modeling enable us to take this a step further and create timelapse animations demonstrating how light shifted throughout the hours of the day or days of the year.  We then know when mosaics would have been exposed to direct sunlight or were in the shade.  I found it useful to create an animation of standing in the triclinium (dining room) of the house, looking west toward the courtyard, to see if the triclinium received direct sunlight at any point of the day.  So far I have found that it does on March 21st of A.D. 200, and probably throughout the spring and autumn.  In fact, the room’s mosaics are illuminated quite beautifully right around dinner time.

[Link to video].

While there is still work to do in the modeling, texturing, and animation of this particular Roman house, the use of accurate modeling techniques and lighting simulation can have a profound impact on archaeology, particularly in cultures that are solar-oriented.  I attended the Computer Applications and Quantitative Methods in Archaeology conference last week in Williamsburg, and while there were many demonstrations of 3D models, none of the projects focused on incorporating temporal lighting and analyzing the outcome.  In nearly every case, temporal lighting is not even a consideration.

I did get a chance to informally demonstrate some of my work on the House of the Faun and the House of the Drinking Contest to some other classical archaeologists who are also involved in virtual reconstruction, but this facet of computer modeling has yet to hit the mainstream digital archaeology field, it seems.  Perhaps I will have the opportunity to demonstrate it to a wider audience at CAA next year.

Nevertheless, working at the Scholars’ Lab has afforded me the opportunity to sample a range of digital scholarship tools/resources, some of which might appeal to that most skeptical of techno-skeptics, the political theorist. One such resource is TAPoR, the Text Analysis Portal for Research, a website that provides access to tools used in the analysis of electronic texts.

Many classic texts are now available in electronic form, and “computer-assisted text analysis” (TAPoR website) enables the researcher to explore a text in ways that are difficult, if not impossible, using only conventional tools for text analysis such as the index or a concordance (though much electronic text analysis is modeled conceptually on both of these). This is generally accomplished by allowing the researcher to search a text for specific words or word patterns or to generate a listing of the most frequently used words. In the case of TAPoR’s word/word pattern search, the results are displayed in the context of the surrounding text—the words sought are in bold, while several additional words on either side give the researcher some sense of how the words are being used. One may employ this kind of analysis with many ends in view, though some common goals include: a) testing to see whether—and if so, how often—an author employs either specific language or a certain kind of language and b) exploring certain words or phrases in context in order to gauge the narrowness or expansiveness of the author’s meaning when such language is used.

In order to explore the features and capacities of TAPoR, I brought to the portal an aspect of a particular research question that I had been thinking about for some time. To write my dissertation, I must provide at least a provisional answer to the following question: Does John Locke articulate a consistent view of the human person throughout his corpus? Although I was very familiar with the way he spoke about the “person” in one text, I was less familiar with his usage in other texts. After sketching a brief definition of the “person” based the first text, I proceeded to investigate whether Locke spoke of the “person” in similar terms in a second text. I pasted the URL of a webpage that contained the second text into TAPoR, which I then asked to search the document for the word “person.” I performed several additional searches, using other key words/phrases from my original definition as well as others that came to mind as I was searching. The results were illuminating. I discovered that although Locke tended to use the word “person” in a more ordinary, less philosophical sense in the second text, all of the basic features of the first text’s conception were nevertheless present. While this confirmed the intuition I had about the consistency of Locke’s view of the “person” across his texts (or at least two of them), the specific instances of personhood language that I isolated with the help of TAPoR will allow me to present a much more convincing defense of my position in the dissertation. Additionally, the fact that TAPoR allows the researcher to view all results of a word search simultaneously helped me to formulate more precisely what was going on in the text and to relate it to my more general argument–i.e. a looser, more familiar usage of “person” in certain contexts can co-exist with a unified, consistent account of personhood.

TAPoR enabled me to “see” more than I otherwise would have in a text and could be a valuable resource for scholars in any field concerned with the close and careful reading of texts.

So I decided to indulge my curiosity and create a small database consisting of the answers to two quick survey questions; What do you call sweet carbonated beverages?, and what state do you identify yourself as being “from”?.  I solicited friends and colleagues for the answers to these questions and ended up with about 150 useable responses (if you were one of the people who responded with “beer”, I thank you for the interest in the survey, but your answer was not included).  I chose to ask this question (please bear in mind that linguistics is not a focus of my studies) because regardless what you refer to it as, most people have had experience with a coke/soda/soda-pop/pop, which isn’t true for all objects of regional jargon (example: before moving to the East Coast I had never seen nor heard of scrapple) and I wanted to document the geographical extent and overlap of a single object rather than attempt to compare multiple similar objects with this first foray.

Approximately 94% of respondents identified that they referred to sweet carbonated beverages as either “coke”, “soda”, “pop”, or “soda-pop”, so I chose to focus the mapping of this data on those four responses.  I took the responses I received and calculated a ‘count’ by state of each type of response; for example, I received a total of 4 responses from people who identified as being from the state of Missouri.  Three of the respondents refer to sweet carbonated beverages as “coke”, and one refers to it as “soda”.  I took these counts and normalized them to the total number of responses received from the state and used that percentage to map the responses by state broken into ~25%, ~50%, ~75%, and 100%.  For each response (coke, soda, pop, soda-pop) I chose a single color to represent responses on the map, and varied the transparency of the color to represent the percentage of the response (25% response = 75% transparency, 50% response = 50% transparency, 75% response = 25% transparency, and 100% response = 0% transparency).  I mapped all four responses separately first (figure 1).

I chose to vary transparency as opposed to saturation of color (eg: monochromatic choropleth) because I wanted to be able to overlap the response maps to visualize the confluence of the regional terms yet keep the original colors of each response (figure 2).

The map above shows the overlap of “coke” responses with “soda” responses, which are displayed by the variation in colors from bright red where 100% responses were “coke” to bright blue where 100% responses were “soda” and various shades of purple and pink in between where there was a mix of responses in that state.  This kind of map can be created using a map with a double ended scale, but that type of visualization is limited to displaying the spectrum between two absolute responses, which would mean that I could only display the confluence of two responses rather than all four (figure 3).

One interesting thing I noticed when looking at the results of this survey is that I need to meet more people from the Pacific Northwest section of the country.  The other interesting result I noticed which is more pertinent to the questions asked in this study is the confluence of the regional jargon that occurs in the region that includes Kentucky, Indiana, Ohio, and Illinois.  This area represents the confluence of the “soda” and “pop” responses and is also the region with responses of “soda-pop”, a hybridization of “soda” and “pop”.

This exercise seems to make the argument that assembling databases of ideas such as regional jargon and using tools like GIS to display that information is a thought provoking and possibly worthwhile endeavor.  (I’d like to thank all of my friends and colleagues who participated in this survey that allowed me to assemble and produce this study for digestion by the blogosphere. Thanks, you guys!)

Text-mining involves parsing a digital text, inserting the words along with their linguistic features into a database, searching for patterns within the database, and, finally, evaluating the results. In my case, I will use text-mining methodologies to extract linguistic data from the Pauline texts as well as other early Jewish texts that speak of the fate of humankind. This process will be fairly straightforward for the Pauline texts. There are many versions of the Greek text of Paul that have linguistic data attached to the words. One need simply extract this data from the text and insert it into a database. I will use the text of the Bibleworks 6 package as my source for Paul. For other texts, this process will not be as easy. For instance, the Thesaurus Lingua Graecae has a huge collection of Greek texts for the period that interests me. But they have no linguistic data attached to the words. To attach linguistic data to these words, I will need to write a script, probably in PERL, to query the open source parsing engine from the Perseus Project at Tufts University (www.perseus.tufts.edu). I will then insert the results from these queries into the database for that text.

The next step will be to design queries that will find appropriate relationships among the texts. Good methodology requires that I test my queries against a set of texts for which I know the results. I will test my queries on several Greek apocalyptic texts which I have already read carefully, noting the sections that relate closely to Paul. Once I have designed a set of useful queries, I will apply these queries to the databases I created earlier.

The application of these queries should point to numerous texts that I will then manually analyze to determine their meaning and how they relate to the Pauline passages under investigation. If my investigation were purely manual, I would begin by reading the texts in English in order to find promising passages that I would then examine more closely in their original language, whether Greek, Hebrew, or Latin. This digital method, though, will do this first analysis using the original languages. That means that this computerized comparison of the texts in their original languages will find verbal and grammatical similarities that may be obscured or destroyed in translation. In the end, I expect text-mining to return data that would be only partially accessible by manual means.

In my next post, I will consider how another area of digital humanities, geographic information systems, can help me to explore how the Pauline and apocalyptic texts are related spatially, instead of linguistically, to each other.