Conditional random fields (crf)-based relation extraction system
OwnerBenjamin ROSENFELD, Ronen FELDMANinventors
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Abstract
A system for extracting information from text, the system including parsing functionality operative to parse a text using a grammar, the parsing functionality including named entity recognition functionality operative to recognize named entities and recognition probabilities associated therewith and relationship extraction functionality operative to utilize the named entities and the probabilities to determine relationships between the named entities, and storage functionality operative to store outputs of the parsing functionality in a database.
Claims14
A system for extracting information from text, said system comprising:
- parsing functionality operative to parse a text using a grammar, said parsing functionality including:
- named entity recognition functionality operative to recognize named entities and recognition probabilities associated therewith;
- and
- relationship extraction functionality operative to utilize said named entities and said probabilities to determine relationships between said named entities;
- and
- storage functionality operative to store outputs of said parsing functionality in a database.
A system for extracting information from text, said system comprising:
- parsing functionality operative to parse a text using a grammar, said grammar including a plurality of rules, at least some of said plurality of said rules having different weights assigned thereto, said parsing functionality employing said weights to select preferred results of said parsing;
- and
- storage functionality operative to store outputs of said parsing functionality in a database.
A method for extracting information from text, said method comprising:
- parsing a text using a grammar, said parsing including:
- recognizing named entities and recognition probabilities associated therewith;
- and
- utilizing said named entities and said probabilities to determine relationships between said named entities;
- and
- storing outputs of said parsing in a database.
A method for extracting information from text, said method comprising:
- parsing a text using a grammar, said grammar including a plurality of rules, at least some of said plurality of said rules having different weights assigned thereto, said parsing employing said weights to select preferred results of said parsing;
- and
- storing outputs of said parsing in a database.
Dependencies are inferred from the claim text.