To: Road Walker who wrote (308809 ) 11/3/2006 4:51:30 PM From: tejek Respond to of 1575775 chir.ag About US Presidential Speeches Aging Tag Cloud Timeline The above tag cloud shows the popularity, frequency, and trends in the usages of words within speeches, official documents, declarations, and letters written by the Presidents of the US between 1776 - 2006 AD. The dataset consists of over 360 documents downloaded from Encyclopedia Britannica and ThisNation.com. Once the documents have been dated and converted to plain-text, my tag-cloud-generation script goes through every text chronologically and makes a list of all the unique words that have been used and counts how many times each word is used. Then it removes the most common words like "the", "this", "that", Once the commonly used language-specific words are removed, it makes a "tag cloud" in which the more commonly used words are shown in bigger font size than the less frequently used ones. Additionally, it tries to figure out how long ago a given word hit it's peak usage and brightens the recently used words while fading away words haven't been used in a while. Due to the lack of precise date information, I've had to estimate the date for some of the texts. Nevertheless, I think it gives quite a good overview of the word usage and consequently highlights the primary issues of the day. This aging tag cloud was created by the same algorithm that generates my personal tag cloud using the plain-text html-stripped contents from my 'blog entries. [The slider-motion works better/faster in Firefox than in Internet Explorer 6.0 because of the difference in implementation of the inner HTML method that I use to change the tags as the slider moves.]