Information classification?
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real/fake\nrelevant/useless\nfun/boring\n\nIf you want specific answer, you gotta ask specific question
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Maybe you will find this article useful. It explains the concept of information entropy.
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You can go to Wordtracker.  It is an excellent resource for keyword related information.  I use it regularly for my web site.
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Urmmm\n\nData information is information held by people, in most cases it refers to computer based information.
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what kind of information?
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Too many to list. All information requested on Source.
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Online search engines.
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..Hi ...You can find the information in the link;)\nKind regards...
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I see you've got a project to do!  The document you're trying to classify should be encoded as a feature vector, with each element in the vector indicating the presence or absence of a word in the document.   So you might have a list of words:\n\nstd::vector<std::string> words(3);\nwords[0] = "Kitty";\nwords[1] = "Puppy";\nwords[2] = "Moocow";\n\nThen represent your document as a list of bool:\n\nstd::vector<bool> wordbag(3);\n\nIf the doc contains the word "Kitty", set wordbag[0] to true.  If the doc contains the word "Moocow", set wordbag[2] to true.  Then you can decide how to classify the document based on your wordbag.
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A Web Crawler, perhaps?\nhttp://en.wikipedia.org/wiki/Web_crawler
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This information is classified.
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On the page below - with info
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http://home.att.net/~steinert/classification_of_medical_items.htm\n\n\nthis website may help you im not sure
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microsoft encarta or wikipedia... ;p
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Physical (chem, physics), life (biology, medicine), Geo (geology, geography) and Computer\n\nIs that the classification you were asking for?
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you can try infoplease.com\ngood luck!
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Try:\n\nwww.softpedia.com