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Wednesday, March 23, 2011

Make a tag cloud from any RSS feed, site, search query or text, then add it to your website or blog

Make a tag cloud from any RSS feed, site, search query or text, then add it to your website or blog

Make a "Word Cloud" Wordle

Interesting how the tag clouds from words we see is based on an equation:
In principle, the font size of a tag in a tag cloud is determined by its incidence. For a word cloud of categories like weblogs, the frequency of use for example, corresponds to the number of weblog entries that are assigned to a category. For small frequencies it's sufficient to indicate directly for any number from one to a maximum font size. For larger values, a scaling should be made. In a linear normalization, the weight ti of a descriptor is mapped to a size scale of 1 through f, where tmin and tmax are specifying the range of available weights. from Wikipedia

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