Automatically generating a topic description for text and searching and sorting text by topic using the same

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United States of America Patent

PATENT NO 5937422
SERIAL NO

08834263

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Abstract

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A method of automatically generating a topical description of text by receiving the text containing input words; stemming each input word to its root form; assigning a user-definable part-of-speech score to each input word; assigning a language salience score to each input word; assigning an input-word score to each input word; creating a tree structure under each input word, where each tree structure contains the definition of the corresponding input word; assigning a definition-word score to each definition word; collapsing each tree structure to a corresponding tree-word list; assigning a tree-word-list score to each entry in each tree-word list; combining the tree-word lists into a final word list; assigning each word in the final word list a final-word-list score; and choosing the top N scoring words in the final word list as the topic description of the input text. Document searching and sorting may be accomplished by performing the method described above on each document in a database and then comparing the similarity of the resulting topical descriptions.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL SECURITY AGENCY THE UNITED STATES GOVERNMENT AS REPRESENTED BY THE DIRECTOR9800 SAVAGE RD STE - 6542 FT MEADE MD 20755

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bates, Richard Michael Greenbelt, MD 1 293
Nelson, Douglas J Columbia, MD 17 480
Schone, Patrick John Elkridge, MD 1 293

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