Results 11 to 20 of about 37,968 (310)
Combining fields for query expansion and adaptive query expansion [PDF]
Information Processing & Management, 2007 In this paper, we aim to improve query expansion for ad-hoc retrieval, by proposing a more fine-grained term reweighting process. This fine-grained process uses statistics from the representation of documents in various fields, such as their titles, the anchor text of their incoming links, and their body content.
Ben He, Iadh Ounis
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A Semantic Query Expansion Method for Question Answering Based on Knowledge Graph [PDF]
Jisuanji gongcheng, 2019 In Question Answering(QA) system,the query intent that is expressed only by the words in the question may not be able to get the ideal answer from the data source.To this end,a semantic query expansion method is proposed for QA system based on knowledge ...
MENG Mingming, ZHANG Kun, LUN Bing, ZHANG Xiaoming
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A hybrid semantic query expansion approach for Arabic information retrieval
Journal of Big Data, 2020 In fact, most of information retrieval systems retrieve documents based on keywords matching, which are certainly fail at retrieving documents that have similar meaning with syntactical different keywords (form).
Hiba ALMarwi +2 more
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A query expansion method based on topic modeling and DBpedia features
International Journal of Information Management Data Insights, 2021 Query Expansion (QE) is a method used for improving Information Retrieval (IR) by adding the terms that are almost selected from feedback documents, and similar to the user query terms.
Sarah Dahir, Abderrahim El Qadi
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Conceptual query expansion [PDF]
Data & Knowledge Engineering, 2006 This article presents a new, hybrid approach that projects an initial query result onto global information, yielding a local conceptual overview. Concepts found this way are candidates for query refinement. We show that the resulting conceptual structure after a typical short query of 2 terms, contains refinements that perform just as well as a most ...
Grootjen, F.A., Weide, T.P. van der
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A KNN Dynamic Extended Query Strategy Based on GPU [PDF]
Jisuanji gongcheng, 2018 Traditional Graphics Processing Unit(GPU) executing PGrid index K-Nearest Neighbor(KNN) query method has problems such as large query granularity,redundant calculation,and unstable performance.Therefore,facing spatial KNN relation queries,a KNN query ...
TANG Jia,GONG Yili,LI Wenhai
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Journal of Information Science Theory and Practice, 2021 Pseudo relevance feedback (PRF) is a powerful query expansion (QE) technique that prepares queries using the top k pseudo-relevant documents and choosing expansion elements.
Farhan Yasir Hadi +3 more
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HASHTAG AND HIGHEST SCORED TERMS FOR EXPANDING QUERY
Journal of ICT, 2017 Communicating in short messages, such as using microblogs, was becoming more popular currently. Twitter https://twitter.com supports microblogs and retrieval of the blogs by users.
Wahyu Wibowo, Widodo Widodo
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Segmentation Expansion Algorithm for Keyword-Aware Optimal Route Query [PDF]
Jisuanji gongcheng, 2022 The Keyword-aware Optimal Route query(KOR) obtains the route with minimum time overhead under the conditions of full keyword coverage and path length constraints;it is commonly used in travel planning.Although existing optimization algorithms use various
LIU Mengmeng, NIU Baoning, YANG Rong
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IEEE Access, 2020 Query expansion (QE) has been widely used in electronic medical record (EMR) retrieval for assisted diagnosis and clinical research. However, existing QE algorithms haven't achieved satisfactory performance in Chinese EMR retrieval, and one noticeable ...
Songchun Yang +4 more
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