Methods and apparatus for entity detection
AssigneeNuance Communications, Inc.
InventorsBrian W. Delaney, Girija Yegnanarayanan
Life of this patent
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Abstract
Techniques for entity detection include matching a token from at least a portion of a text string with a matching concept in an ontology. A first concept may be identified as being hierarchically related to the matching concept within the ontology, and a second concept may be identified as being hierarchically related to the first concept within the ontology. The first and second concepts may be included in a set of features of the token. Based at least in part on the set of features of the token, a measure related to a likelihood that the at least a portion of the text string corresponds to a particular entity type may be determined.
Claims20
A method comprising:
- matching a token from at least a portion of a text string with a matching concept in an ontology;
- identifying a first concept as being hierarchically related to the matching concept within the ontology;
- identifying a second concept as being hierarchically related to the first concept within the ontology;
- including the first and second concepts in a set of features of the token;
- and
- determining, using at least one processor, a measure related to a likelihood that the at least a portion of the text string corresponds to a particular entity type, based at least in part on the set of features of the token.
Apparatus comprising:
- at least one processor;
- and
- at least one processor-readable storage medium storing processor-executable instructions that, when executed by the at least one processor, perform a method comprising:
- matching a token from at least a portion of a text string with a matching concept in an ontology;
- identifying a first concept as being hierarchically related to the matching concept within the ontology;
- identifying a second concept as being hierarchically related to the first concept within the ontology;
- including the first and second concepts in a set of features of the token;
- and
- determining a measure related to a likelihood that the at least a portion of the text string corresponds to a particular entity type, based at least in part on the set of features of the token.
At least one computer-readable storage medium encoded with computer-executable instructions that, when executed, perform a method comprising:
- matching a token from at least a portion of a text string with a matching concept in an ontology;
- identifying a first concept as being hierarchically related to the matching concept within the ontology;
- identifying a second concept as being hierarchically related to the first concept within the ontology;
- including the first and second concepts in a set of features of the token;
- and
- determining a measure related to a likelihood that the at least a portion of the text string corresponds to a particular entity type, based at least in part on the set of features of the token.
Dependencies are inferred from the claim text.