Information processing for searching categorizing information in a document based on a categorization hierarchy and extracted phrases
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United States of America Patent
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May 27, 2003
Grant Date -
N/A
app pub date -
Feb 2, 2000
filing date -
Feb 2, 2000
priority date (Note) -
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Abstract
Processing automatically information in a document to be incorporated into databases to be searched, retrieved and learned. This would significantly enhance categorizing information in the domain so that information can be systematically and efficiently retrieved when needed. In one approach, first, the context or the domain of the document is determined. Then, domain-specific phrases in the document are automatically extracted based on grammar and dictionaries. From these phrases, categories in a category hierarchy are identified, and the document is linked to those categories. Phrases in the document that cannot be categorized are identified to be analyzed. If these new phrases are relevant, new categories may be created based on suggestions provided to categorize them. Later when a user asks a question that is related to the categorized phrases, the corresponding categories are identified, with the document retrieved to respond to the question. In one approach, the question is in natural-language.
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