Title:
METHOD FOR PROVIDING IMPROVED SEARCH RESULT BY COMBINING TWO OR MORE INFORMATION SEARCHES
Document Type and Number:
WIPO Patent Application WO/2022/255807
Kind Code:
A1
Abstract:
Disclosed is a method for providing an improved search result when passages are generated by dividing a document into smaller sizes and then the passages are used as search units. According to a first aspect, new rankings are generated by combining an alignment result of the passages by a first search model and an alignment result of the passages by a second search model, and documents are aligned to correspond to the rankings. Also, the documents are aligned on the basis of a relationship between the number of passages extracted from the same document and the number of all passages of the corresponding document. Final rankings are determined by combining the two alignment results for the documents. According to another aspect, search results of a passage-based search module are combined based on rankings to be changed to rankings of the corresponding documents. Also, the documents are aligned on the basis of a relationship between the number of passages extracted from the same document and the number of all passages of the corresponding document. A final search result is provided by combining the two alignment results and search results of a document-based search module. According to the present method, a search result highly relevant to the overall document is generated even when a passage-based search is performed, and an improved search result is provided compared to when only document-based or passage-based search results are provided.
Inventors:
PARK SUNG-BUM (KR)
CHANG SUEHYUN (KR)
CHANG SUEHYUN (KR)
Application Number:
PCT/KR2022/007811
Publication Date:
December 08, 2022
Filing Date:
June 02, 2022
Export Citation:
Assignee:
UNIV HOSEO ACAD COOP FOUND (KR)
LIVIN AI INC (KR)
LIVIN AI INC (KR)
International Classes:
G06F16/2457; G06F16/2453; G06F16/33; G06F16/332; G06F16/93; G06N5/00; G06N20/20
Domestic Patent References:
| WO2017201647A1 | 2017-11-30 |
Foreign References:
| KR102197945B1 | 2021-01-05 | |||
| KR20210039913A | 2021-04-12 | |||
| KR102324571B1 | 2021-11-11 | |||
| KR102325249B1 | 2021-11-12 |
Other References:
ZHIJING WU , JIAXIN MAO , YIQUN LIU , MIN ZHANG , SHAOPING MA: "Investigating Passage-level Relevance and Its Role in Document-level Relevance Judgment", PROCEEDINGS OF THE 29TH ACM INTERNATIONAL CONFERENCE ON INFORMATION & KNOWLEDGE MANAGEMENT, 18 July 2019 (2019-07-18) - 23 October 2020 (2020-10-23), New York, NY, USA, pages 605 - 614, XP058708366, ISBN: 978-1-4503-6859-9, DOI: 10.1145/3331184.3331233
CORMACK GORDON V.; CLARKE CHARLES L A; BUETTCHER STEFAN: "Reciprocal rank fusion outperforms condorcet and individual rank learning methods", MICROARCHITECTURE, 2009. MICRO-42. 42ND ANNUAL IEEE/ACM INTERNATIONAL SYMPOSIUM ON, 19 July 2009 (2009-07-19) - 16 December 2009 (2009-12-16), Piscataway, NJ, USA , pages 758 - 759, XP058595934, ISBN: 978-1-60558-798-1, DOI: 10.1145/1571941.1572114
CORMACK GORDON V.; CLARKE CHARLES L A; BUETTCHER STEFAN: "Reciprocal rank fusion outperforms condorcet and individual rank learning methods", MICROARCHITECTURE, 2009. MICRO-42. 42ND ANNUAL IEEE/ACM INTERNATIONAL SYMPOSIUM ON, 19 July 2009 (2009-07-19) - 16 December 2009 (2009-12-16), Piscataway, NJ, USA , pages 758 - 759, XP058595934, ISBN: 978-1-60558-798-1, DOI: 10.1145/1571941.1572114
Attorney, Agent or Firm:
CHANG, Suehyun (KR)
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