Results 21 to 30 of about 39,138 (264)

Query expansion and query reduction in document retrieval [PDF]

open access: yesProceedings. 15th IEEE International Conference on Tools with Artificial Intelligence, 2004
We investigate two seemingly incompatible approaches for improving document retrieval performance in the context of question answering: query expansion and query reduction. Queries are expanded by generating lexical paraphrases. Syntactic, semantic and corpus-based frequency information is used in this process.
Ingrid Zukerman   +2 more
openaire   +1 more source

QA4PRF: A Question Answering Based Framework for Pseudo Relevance Feedback

open access: yesIEEE Access, 2021
Pseudo relevance feedback (PRF) automatically performs query expansion based on top-retrieved documents to better represent the user’s information need so as to improve the search results.
Handong Ma   +8 more
doaj   +1 more source

Code Search Based on Alteration Intent

open access: yesIEEE Access, 2019
Code search is to retrieve the method according to the user needs. Many people think of the query as the only one to reflect the user needs. So they start with the query and find the synonyms, semantically similar to the query terms, for query expansion.
Huaiguang Wu, Yang Yang
doaj   +1 more source

Evaluation of Term Ranking Algorithms for Pseudo-Relevance Feedback in MEDLINE Retrieval [PDF]

open access: yesHealthcare Informatics Research, 2011
ObjectivesThe purpose of this study was to investigate the effects of query expansion algorithms for MEDLINE retrieval within a pseudo-relevance feedback framework.MethodsA number of query expansion algorithms were tested using various term ranking ...
Sooyoung Yoo, Jinwook Choi
doaj   +1 more source

Event-Driven Query Expansion [PDF]

open access: yesProceedings of the 14th ACM International Conference on Web Search and Data Mining, 2021
A significant number of event-related queries are issued in Web search. In this paper, we seek to improve retrieval performance by leveraging events and specifically target the classic task of query expansion. We propose a method to expand an event-related query by first detecting the events related to it.
Guy D. Rosin, Ido Guy, Kira Radinsky
openaire   +2 more sources

Construction of a 5G Wireless Semantic Web-Assisted English Digital Learning Resource Query System

open access: yesDiscrete Dynamics in Nature and Society, 2021
Based on the 5G wireless semantic network, this paper realizes the construction of the English digital learning resources query system, providing the query and management functions for English digital learning resources, and realizes the integration of ...
Lili Liu
doaj   +1 more source

WORD SENSE DISAMBIGUATION METHOD USING SEMANTIC SIMILARITY MEASURES AND OWA OPERATOR [PDF]

open access: yesICTACT Journal on Soft Computing, 2015
Query expansion (QE) is the process of reformulating a query to improve retrieval performance. Most of the times user's query contains ambiguous terms which adds relevant as well as irrelevant terms to the query after applying current query expansion ...
Kanika Mittal, Amita Jain
doaj  

A framework for selective query expansion [PDF]

open access: yesProceedings of the thirteenth ACM international conference on Information and knowledge management, 2004
Query expansion is a well-known technique that has been shown to improve average retrieval performance. This technique has not been used in many operational systems because of the fact that it can greatly degrade the performance of some individual queries.
Stephen Cronen-Townsend   +2 more
openaire   +1 more source

A Query Understanding Framework for Earth Data Discovery

open access: yesApplied Sciences, 2020
One longstanding complication with Earth data discovery involves understanding a user’s search intent from the input query. Most of the geospatial data portals use keyword-based match to search data.
Yun Li   +4 more
doaj   +1 more source

Construction of artificial intelligence-assisted English learning resource query system

open access: yesFrontiers in Psychology, 2022
English has become an important tool for China's opening to the outside world and exchanges with other countries. More and more people have the motivation and requirements to learn English, but under the traditional English learning mode and traditional ...
Wenjing Yao, Ning Li
doaj   +1 more source

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