DOCUMENT SEARCH DEVICE AND DOCUMENT SEARCH METHOD
First Claim
1. A document search device including search indexes generated from a document which is prepared in advance, and a document searcher that receives an input from a user and searches through said document for an item associated with said user input by using said search indexes, said document search device comprising:
- an utterance estimating model that is generated by learning a correspondence between hypothetical questions each as to a content of said document and items in said document each of which is an answer to one of said hypothetical questions;
an utterance content estimator that estimates an item corresponding to an answer to said user input from said document on a basis of said utterance estimating model; and
a result integrator that integrates document search results acquired from said document searcher and document estimation results acquired from said utterance content estimator so as to generate final search results.
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Abstract
An utterance content estimator estimates a document ID corresponding to an answer to user input analysis results from a document on the basis of an utterance estimating model that is generated by learning a correspondence between hypothetical questions each as to a content of the document and document IDs each of which is an answer to one of the hypothetical questions. A result integrator integrates document estimation results of the utterance estimating model and document search results of search indexes so as to generate final search results.
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Citations
6 Claims
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1. A document search device including search indexes generated from a document which is prepared in advance, and a document searcher that receives an input from a user and searches through said document for an item associated with said user input by using said search indexes, said document search device comprising:
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an utterance estimating model that is generated by learning a correspondence between hypothetical questions each as to a content of said document and items in said document each of which is an answer to one of said hypothetical questions; an utterance content estimator that estimates an item corresponding to an answer to said user input from said document on a basis of said utterance estimating model; and a result integrator that integrates document search results acquired from said document searcher and document estimation results acquired from said utterance content estimator so as to generate final search results. - View Dependent Claims (2, 3, 4, 5)
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6. A document search method comprising:
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a user input step of accepting an input from a user; a document searching step of searching through said document for an item associated with said user input by using search indexes generated from a document which is prepared in advance; an utterance content estimating step of estimating an item corresponding to an answer to said user input from said document on a basis of an utterance estimating model that is generated by learning a correspondence between hypothetical questions each as to a content of said document and items in said document each of which is an answer to one of said hypothetical questions; and a result integrating step of integrating document search results acquired from said document searching step and document estimation results acquired from said utterance content estimating step so as to generate final search results.
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Specification