Title:
DOCUMENT SEARCH METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/084226
Kind Code:
A1
Abstract:
The present invention relates to a document search method and device for performing a keyword search and a similarity search in combination. The document search method and device pertaining to the present invention involve a function for performing a search that combines a keyword search for extracting documents using a query containing a keyword and a similarity search by which documents are rearranged in order of similarities on the basis of the query, wherein documents having high similarity scores in the similarity search are extracted in the keyword search. Thus, it is possible to carry out a search that can reliably extract high-ranking documents in the similarity search and takes advantage of the strengths of both types of searches.
Inventors:
SATO YUSUKE (JP)
NAIKI YOSHIAKI (JP)
NAIKI YOSHIAKI (JP)
Application Number:
PCT/JP2017/039655
Publication Date:
May 11, 2018
Filing Date:
November 02, 2017
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G06F17/30
Foreign References:
| JP2008070921A | 2008-03-27 | |||
| JP2008102911A | 2008-05-01 | |||
| JP2004133510A | 2004-04-30 | |||
| JP2010066808A | 2010-03-25 | |||
| US20120296891A1 | 2012-11-22 |
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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