JP2020071678A5

JP2020071678A5 -

Info

Publication number: JP2020071678A5
Application number: JP2018205385A
Authority: JP
Filing date: 2018-10-31
Publication date: 2022-08-30
Anticipated expiration: 2038-10-31

Description

本発明は、検索テキストにより検索対象文書を検索する検索手段と、検索対象文書に係る情報と当該検索対象文書に対応する学習用検索テキストとを記憶する記憶手段とを備える情報処理装置であって、前記検索対象文書に対応する学習用検索テキストに基づき、前記検索対象文書に対する付加テキスト情報を作成する作成手段と、前記学習用検索テキストと、前記検索対象文書と当該検索対象文書に対する付加テキスト情報とを含む文書データとの組を用いて順位学習を行う学習手段とを備えることを特徴とする
The present invention comprises a search means for retrieving a search target document using a search text , and a storage means for storing information relating to the search target document and a learning search text corresponding to the search target document. A processing device, comprising: creating means for creating additional text information for the search target document based on the learning search text corresponding to the search target document; the learning search text ; and the search target document. and a learning means for performing order learning using a set of document data including additional text information for the search target document

Claims

An information processing apparatus comprising: searching means for searching for a search target document using a search text ; and storage means for storing information relating to the search target document and a learning search text corresponding to the search target document. hand,
creating means for creating additional text information for the search target document based on the learning search text corresponding to the search target document;
an information processing apparatus comprising: learning means for performing ranking learning using a set of the search text for learning and document data including the search target document and additional text information for the search target document. .

2. The information processing according to claim 1, wherein said learning means performs order learning using a set of said learning retrieval text and document data consisting only of additional text information for said retrieval target document. Device.

3. The information processing apparatus according to claim 1, wherein said learning means performs rank learning using feature data calculated from said learning search text and said document data.

4. The information processing apparatus according to claim 3, wherein the feature data includes a search score obtained when the search target document corresponding to the document data is searched using the learning search text .

5. The information processing apparatus according to any one of claims 1 to 4, wherein said additional text information includes characteristic words extracted from said learning search text .

6. An information processing apparatus according to claim 5, wherein the number of characteristic words included in said additional text information is limited according to a predetermined value.

The learning means includes learning text information for the search target document in the data when the number of learning search texts associated with each of the search target documents exceeds a predetermined value. 7. The information processing apparatus according to any one of claims 1 to 6.

Control of an information processing apparatus comprising a retrieval means for retrieving a retrieval target document by a retrieval text and a storage means for storing information relating to the retrieval target document and a learning retrieval text corresponding to the retrieval target document a method,
a creating step in which creating means creates additional text information for the search target document based on the learning search text corresponding to the search target document;
a learning step in which learning means performs order learning using a set of the learning search text , document data including the search target document and learning text information for the search target document; control method.

Executed in an information processing apparatus comprising a search means for searching for a search target document using a search text , and a storage means for storing information relating to the search target document and a learning search text corresponding to the search target document A possible program,
the information processing device,
creating means for creating additional text information for the search target document based on the learning search text corresponding to the search target document;
A program for functioning as learning means for performing order learning using a set of the learning search text , the search target document, and document data including additional text information for the search target document.