Question-answering system and question-answering processing method
First Claim
1. A question-answering system for inputting the question sentence data presented in a natural language and outputting an answer for the question sentence data from a group of document data to be retrieved for the answer, the system comprising:
- document retrieval means for extracting a keyword from the input question sentence data and retrieving and extracting the document data including the keyword from the group of document data;
answer candidate extracting means for extracting a language presentation possibly becoming the answer as an answer candidate from the document data;
answer type determination means for storing predetermined answer types for classifying the answer candidates and determining of which answer type the answer candidate is; and
answer table output means for classifying the answer candidates by answer type, and outputting the answer table data in a table format in which all or part of the answer candidates are arranged with the answer type as a heading item for each the answer type.
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Abstract
A question sentence input part of question-answering system inputs a question sentence presented in a natural language. A document retrieval part of the system extracts a keyword from the question sentence and retrieves and extracts the document data including the keyword from a document database. An answer candidate extracting part of the system extracts a language presentation possibly becoming the answer as an answer candidate from the retrieved and extracted document data. An answer type determination part of the system determines an answer type of the answer candidate. An answer table output part of the system classifies the answer candidates by answer type and outputs an answer table listing all or part of the answer candidates having a predetermined evaluation or greater for each answer type in a table format.
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Citations
16 Claims
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1. A question-answering system for inputting the question sentence data presented in a natural language and outputting an answer for the question sentence data from a group of document data to be retrieved for the answer, the system comprising:
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document retrieval means for extracting a keyword from the input question sentence data and retrieving and extracting the document data including the keyword from the group of document data;
answer candidate extracting means for extracting a language presentation possibly becoming the answer as an answer candidate from the document data;
answer type determination means for storing predetermined answer types for classifying the answer candidates and determining of which answer type the answer candidate is; and
answer table output means for classifying the answer candidates by answer type, and outputting the answer table data in a table format in which all or part of the answer candidates are arranged with the answer type as a heading item for each the answer type. - View Dependent Claims (2, 3, 4, 5)
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6. A question-answering system for inputting the question sentence data presented in a natural language and outputting an answer for the question sentence data that is retrieved from a group of document data of retrieval subject, the system comprising:
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answer type input means for inputting an answer type of the answer for the question sentence data;
document retrieval means for extracting a keyword from the input question sentence data and retrieving and extracting the document data including the keyword from the group of document data;
answer candidate extracting means for extracting a language presentation possibly becoming the answer as an answer candidate from the document data;
answer type determination means for storing predetermined answer types for classifying the answer candidates and determining of which answer type the answer candidate is; and
answer table output means for classifying the answer candidates by answer type, and outputting the answer table data in a table format in which all or part of the answer candidates are arranged with the answer type as a heading item for each the answer type and the input answer type is a beginning item. - View Dependent Claims (7, 8)
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9. A question-answering processing method for inputting the question sentence data presented in a natural language and outputting an answer for the question sentence data from a group of document data to be retrieved for the answer, the method comprising:
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a document retrieval processing step of extracting a keyword from input document sentence data and retrieving and extracting the document data including the keyword from the group of document data;
an answer candidate extraction processing step of extracting a language presentation possibly becoming the answer as an answer candidate from the document data;
an answer type determination processing step of storing predetermined answer types for classifying the answer candidates and determining of which answer type the answer candidate is; and
an answer table output processing step of classifying the answer candidates by answer type, and outputting the answer table data in a table format in which all or part of the answer candidates are arranged with the answer type as a heading item for each the answer type. - View Dependent Claims (10, 11, 12, 13)
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14. A question-answering processing method for inputting the question sentence data presented in a natural language and outputting an answer for the question sentence data from a group of document data to be retrieved for the answer, the method comprising:
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an answer type input processing step of inputting an answer type of the answer for the question sentence data;
a document retrieval processing step of extracting a keyword from the input question sentence data and retrieving and extracting the document data including the keyword from the group of document data;
an answer candidate extraction processing step of extracting a language presentation possibly becoming the answer as an answer candidate from the document data;
an answer type determination processing step of storing predetermined answer types for classifying the answer candidates and determining of which answer type the answer candidate is; and
an answer table output processing step of classifying the answer candidates by answer type, and outputting the answer table data in a table format in which all or part of the answer candidates are arranged with the answer type as a heading item for each the answer type and the input answer type is a beginning item. - View Dependent Claims (15, 16)
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Specification