System and method for matching a textual input to a lexical knowledge based and for utilizing results of that match
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United States of America Patent
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Mar 14, 2006
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N/A
app pub date -
Oct 29, 2004
filing date -
Mar 7, 1997
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Abstract
The present invention can be used in a natural language processing system to determine a relationship (such as similarity in meaning) between two textual segments. The relationship can be identified or determined based on logical graphs generated from the textual segments. A relationship between first and second logical graphs is determined. This is accomplished regardless of whether there is an exact match between the first and second logical graphs. In one embodiment, the first graph represents an input textual discourse unit. The second graph, in one embodiment, represents information in a lexical knowledge base (LKB). The input graph can be matched against the second graph, if they have similar meaning, even if the two differ lexically or structurally.
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