December 10th, 2006

Emerging topics

picture-8_480x336shkl.png You might have seen the tag clouds posted below. I cal­cu­late tag posi­tions based on co-occurrence, such that tags used together are placed closer to each other. Addi­tion­ally, tags are scaled áccord­ing to fre­quency.
A gen­eral prob­lem I have with the result­ing rep­re­sen­ta­tion (and com­mon tag clouds as well) is the fact, that every tag occur­rence is weighted equally. As a result, these tag clouds never rep­re­sent the cur­rent state of inter­est, but a very slug­gishly chang­ing sum­mary of your archive. How­ever, your inter­ests and the cor­re­spond­ing vocab­u­lary keeps mov­ing on. So I am cur­rently inves­ti­gat­ing trends in tag clouds and how groups of related tags emerge and dis­ap­pear again.

A first glimpse into the dynam­i­cal nature of tag structures.

4 Responses to 'Emerging topics'

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  1. norrix
    December 11th, 2006 at 2:11 pm

    hi, anscheinend hab ich zu viele tags oder ähnliches. wenn ich meine ani­ma­tion anse­hen will, bekomme ich immer die mel­dung vom flash-player, dass ein skript den rech­ner ver­langsamt. also halt ein typ­is­ches zeichen für entweder zuviele daten oder eine endlosschleife.

  2. Moritz Stefaner
    December 13th, 2006 at 4:43 pm

    Thanks for the note, I have the same prob­lem and will fix it soon. Most prob­a­bly you just tagged too much :)

  3. Well-formed data » Tag maps update
    January 22nd, 2007 at 10:50 pm

    […] To see how that fresh­ness mea­sure changes over time, there is an ani­mated ver­sion as well described in an ear­lier post. […]

  4. Well-formed data » Emerging topics v2
    February 19th, 2007 at 12:55 am

    […] am cur­rently work­ing on trends in indi­vid­ual tag­ging behav­iour. You might have seen a first, ani­mated ver­sion of my stud­ies based on tag maps. The orig­i­nal ani­ma­tion shows the emer­gence of pre­vi­ously rarely used tags over […]

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