Results 41 to 50 of about 1,872,988 (376)

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

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

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

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

Exploring accumulative query expansion for relevance feedback [PDF]

open access: yes, 2010
For the participation of Dublin City University (DCU) in the Relevance Feedback (RF) track of INEX 2010, we investigated the relation between the length of relevant text passages and the number of RF terms.
D.E. Losada   +5 more
core   +1 more source

Proximity relevance model for query expansion [PDF]

open access: yesProceedings of the 31st Annual ACM Symposium on Applied Computing, 2016
Query expansion (QE) aims at improving information retrieval effectiveness by enhancing the query formulation. Because users' queries are generally short and because of the language ambiguity, some information needs are difficult to satisfy. Query reformulation and QE methods have been developed to face this issue.
Ermakova, Liana   +2 more
openaire   +3 more sources

Modified query expansion through generative adversarial networks for information extraction in e-commerce

open access: yesMachine Learning with Applications, 2023
This work addresses an alternative approach for query expansion (QE) using a generative adversarial network (GAN) to enhance the effectiveness of information search in e-commerce.
Altan Cakir, Mert Gurkan
doaj   +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

Evidence combination for multi-point query learning in content-based image retrieval [PDF]

open access: yes, 2004
In multipoint query learning a number of query representatives are selected based on the positive feedback samples. The similarity score to a multipoint query is obtained from merging the individual scores.
Jose, J.M., Urban, J.
core   +1 more source

Conceptual Query Expansion [PDF]

open access: yes, 2005
Query expansion has been extensively studied as a technique for increasing information retrieval performance. However, due to the volume of documents available on the web, many of the techniques that have been successful in traditional information retrieval systems do not scale well to web information retrieval.
Orland Hoeber, Xue Dong Yang, Yiyu Yao
openaire   +2 more sources

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