検索結果出力装置、検索結果出力方法及びプログラム - Nippon Telegraph and Telephone Corporation

Title:

検索結果出力装置、検索結果出力方法及びプログラム

Document Type and Number:

Japanese Patent JP5820784

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To output a search result which, when a user designates a viewpoint to be emphasized, minimizes the reduction in degree of satisfaction with respect to viewpoints other than the designated viewpoint and increases the degree of satisfaction of the user with respect to the designated viewpoint.SOLUTION: A search result output device for outputting search results in response to an input query includes: a Pareto solution set storage unit in which evaluation values based on a plurality of viewpoints and weight parameters for score factors corresponding to the evaluation values, which are a set of Pareto optimal solutions, are stored; a weight parameter adjustment unit which selects a weight parameter which increases an evaluation value corresponding to a designated viewpoint, from the Pareto solution set storage unit; a search score calculation unit which acquires search results in response to an input query and weights score factors of the search results by the selected weight parameter to calculate search scores of the search results; and a search result output unit which outputs the search results in accordance with a sequence based on the calculated search scores.

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Inventors:

Yoshihiko Sugawara
Ryoji Kataoka

Application Number:

JP2012184328A

Publication Date:

November 24, 2015

Filing Date:

August 23, 2012

Export Citation:

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Assignee:

Nippon Telegraph and Telephone Corporation

International Classes:

G06F17/30

Domestic Patent References:

JP2011059947A
JP2006293483A

Foreign References:

WO2011159361A1
WO2003060821A1

Other References:

数原良彦、外5名,適合性分布が異なる情報源を用いたランキング学習,情報処理学会論文誌論文誌トランザクション平成22年度(1) [CD-ROM],日本,一般社団法人情報処理学会,2010年11月 1日,第3巻,第3号,p.99-111
数原良彦、外4名,評価指標をマージンに反映したオンラインランキング学習,言語処理学会第17回年次大会発表論文集チュートリアル本会議ワークショップ [CD-ROM],日本,言語処理学会,2011年 4月15日,p.872-875
村川正宏、外1名,近傍モデル遺伝的アルゴリズムによる多目的最適化,情報処理学会論文誌,日本,社団法人情報処理学会,1999年 4月15日,第40巻,第4号,p.1792-1800

Attorney, Agent or Firm:

Tadashige Ito
Tadahiko Ito
Ryuji Ishihara

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