Method of and system for recognizing concepts
First Claim
1. A method of recognizing a concept, which comprises:
- (a) specifying a training set;
(b) specifying a lexical profile for a target category, said lexical profile comprising a set of seed lexical cues;
(c) retrieving samples from the training set that match lexical cues in said lexical profile;
(d) selecting positive instances of said target category from retrieved samples;
(e) extracting lexical cues from said selected positive instances; and
, (f) adding extracted new lexical cues to said lexical profile.
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Abstract
A concept recognition system includes a concept recognition training system and a real-time system. The concept recognition training system processes a training set and produces a lexical profile keyed to a target category. The lexical profile comprises a set of lexical cues, which are words and phrases associated with the target category. A trainer starts with an initial lexical profile that comprises a small set of seed cues. The training system retrieves samples from the training set that match lexical cues in the lexical profile. The trainer determines which of the retrieved samples are positive instances of the target category. The training system extracts lexical cues from the positive instances and adds new lexical cues to the lexical profile. The real-time system uses the lexical profile as the basis for making confidence judgments for each new incoming message from the same input stream with respect to whether the message is an instance of the target category.
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Citations
34 Claims
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1. A method of recognizing a concept, which comprises:
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(a) specifying a training set;
(b) specifying a lexical profile for a target category, said lexical profile comprising a set of seed lexical cues;
(c) retrieving samples from the training set that match lexical cues in said lexical profile;
(d) selecting positive instances of said target category from retrieved samples;
(e) extracting lexical cues from said selected positive instances; and
,(f) adding extracted new lexical cues to said lexical profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A concept recognition system, which comprises:
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a concept recognition training system for generating a lexical profile for a target category from a training set, said lexical profile including an initial set of seed lexical cues;
a real-time system for scoring input text based upon correspondence of said input text with said lexical profile. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of developing a lexical profile for recognizing a concept, which comprises:
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administering a lexical profile for said concept; and
,auditing a training set. - View Dependent Claims (31, 32, 33, 34)
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Specification