Patent ID: 11868726
Assignee: TOSHIBA DIGITAL SOLUTIONS CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. A named-entity extraction apparatus, comprising:
a storage device that stores an extraction dictionary used when named entities of document data and relations between named entities are extracted from the document data;
a document receiving unit that receives input of extraction document data from which the named entities and the relations are extracted, and input of learning document data used for learning of the extraction dictionary;
an extraction unit that extracts, using the extraction dictionary, the named entities and the relations between named entities from the extraction document data received by the document receiving unit;
a designation unit that designates character strings corresponding to the named entities and relations between named entities extracted by the extraction unit among character strings in the learning document data received by the document receiving unit;
a learning unit that learns the extraction dictionary based on the character strings corresponding to the named entities and the relations between named entities designated by the designation unit; and
an output unit that outputs the character strings corresponding to the named entities and the relations between named entities extracted by the extraction unit among character strings corresponding to named entities and relations between named entities not designated by the designation unit.