Tags Over Time

There’s a new trend in online amateur history that digital history scholars would do well to notice. A few months ago I pointed to Yahoo’s Taglines, a Flash visualization of the changing use of Flickr tags over a 16 month period from June 2004 to September 2005. More recently Chirag Mehta, an IT manager living in Florida, developed an open source application to do the same thing with any body of machine readable text. According to Mehta’s website, Tagline Generator is “a simple PHP codebase that lets you generate chronological tag clouds from simple text data sources without manually tagging the data entries.” Mehta’s demonstration piece, the US Presidential Speeches Tag Cloud, got a lot of traction on Digg a few weeks ago. Now Todd Bishop, author of the Seattle Post-Intelligencer’s Microsoft Blog, has applied Metha’s code to a body of speeches, articles, and emails written by Bill Gates, Steve Ballmer, and other key figures at Microsoft over the past 30 years.

Obviously this technology could be extended to other bodies of digital historical text. For example, I can imagine mapping the frequency of terms such as “victim” “terrorist” “Osama” “sad” and “angry” in personal narratives contributed to CHNM’s September 11 Digital Archive between, say, September 2001 and September 2003 as memories faded and events such as the wars in Afganistan and Iraq intervened. Maybe Dan will find time to give it a go as he did with his awesome map of what American’s did on 9/11.

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