Paraphrasing Sentential Queries by Incorporating Coordinate Relationship
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- Zhao Meng
- Graduate School of Informatics, Kyoto University
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- Ohshima Hiroaki
- Graduate School of Informatics, Kyoto University
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- Tanaka Katsumi
- Graduate School of Informatics, Kyoto University
抄録
Although long queries are still a small part of the queries submitted to Web search engines, their usage tends to gradually increase. However, the effectiveness of the retrieval decreases with the increase of query length. Long queries are very likely to have few Web pages returned. We target at sentential queries, a type of long queries, and propose a method called sentential query paraphrasing for improving their retrieval performance, especially on recall. We are motivated by the assumption that a sentence is an indivisible whole, which means that removing terms or phrases from a sentence would lead to the missing of some information or query drift. In this paper, we paraphrase sentential queries to avoid missing information and consequently ensure the completeness of the information. Take the sentential query “apples pop a powerful pectin punch, ” for example. Its meaning will be changed if one or more terms are removed, and few Web pages are returned by conventional search engines. In contrast, querying by its paraphrases, such as “apples contain a lot of pectin” or “apples are rich in pectin, ” can retrieve more Web pages. The experimental results show that our method can acquire more paraphrases from the noisy Web. Besides, with the help of paraphrases, more Web pages can be retrieved, especially for those sentential queries that could not find any answers with its original expression.
収録刊行物
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- Journal of Information Processing
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Journal of Information Processing 24 (4), 721-731, 2016
一般社団法人 情報処理学会
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詳細情報 詳細情報について
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- CRID
- 1390001205295377920
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- NII論文ID
- 130005165249
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- ISSN
- 18826652
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可