Results 21 to 30 of about 41,352 (256)

How Does Feedback Signal Quality Impact Effectiveness of Pseudo Relevance Feedback for Passage Retrieval [PDF]

open access: yesAnnual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2022
Pseudo-Relevance Feedback (PRF) assumes that the top results retrieved by a first-stage ranker are relevant to the original query and uses them to improve the query representation for a second round of retrieval.
Hang Li   +3 more
semanticscholar   +1 more source

Query expansion using the clustering of pseudo relevant documents with query sensitive similarity [PDF]

open access: yesمجله مدل سازی در مهندسی, 2017
Query expansion as one of query adaptation approaches, improves retrieval effectiveness of information retrieval. Pseudo-relevance feedback (PRF) is a query expansion approach that supposes top-ranked documents are relevant to the query concept, and ...
Reza Khodaei   +2 more
doaj   +1 more source

Contrastive Refinement for Dense Retrieval Inference in the Open-Domain Question Answering Task

open access: yesFuture Internet, 2023
In recent years, dense retrieval has emerged as the primary method for open-domain question-answering (OpenQA). However, previous research often focused on the query side, neglecting the importance of the passage side.
Qiuhong Zhai   +3 more
doaj   +1 more source

Patent query reduction using pseudo relevance feedback [PDF]

open access: yesProceedings of the 20th ACM international conference on Information and knowledge management, 2011
Queries in patent prior art search are full patent applications and much longer than standard ad hoc search and web search topics. Standard information retrieval (IR) techniques are not entirely effective for patent prior art search because of ambiguous terms in these massive queries. Reducing patent queries by extracting key terms has been shown to be
Ganguly, Debasis   +3 more
openaire   +1 more source

Positional relevance model for pseudo-relevance feedback [PDF]

open access: yesProceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010
Pseudo-relevance feedback is an effective technique for improving retrieval results. Traditional feedback algorithms use a whole feedback document as a unit to extract words for query expansion, which is not optimal as a document may cover several different topics and thus contain much irrelevant information.
Yuanhua Lv, ChengXiang Zhai
openaire   +1 more source

LoL: A Comparative Regularization Loss over Query Reformulation Losses for Pseudo-Relevance Feedback [PDF]

open access: yesAnnual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2022
Pseudo-relevance feedback (PRF) has proven to be an effective query reformulation technique to improve retrieval accuracy. It aims to alleviate the mismatch of linguistic expressions between a query and its potential relevant documents.
Yunchang Zhu   +4 more
semanticscholar   +1 more source

An Improved Retrievability-Based Cluster-Resampling Approach for Pseudo Relevance Feedback

open access: yesComputers, 2016
Cluster-based pseudo-relevance feedback (PRF) is an effective approach for searching relevant documents for relevance feedback. Standard approach constructs clusters for PRF only on the basis of high similarity between retrieved documents.
Shariq Bashir
doaj   +1 more source

Improving Pseudo-Relevance Feedback With Neural Network-Based Word Representations

open access: yesIEEE Access, 2018
In information retrieval, query expansion methods, such as pseudo-relevance feedback, are designed to enrich users' queries with relevant terms for comprehensively interpreting the desired information.
Bo Xu   +4 more
doaj   +1 more source

Aggregation of Multiple Pseudo Relevance Feedbacks for Image Search Re-Ranking

open access: yesIEEE Access, 2019
Image retrieval effectiveness can be improved by pseudo relevance feedback (PRF), which automatically uses top-$k$ images of the initial retrieval result as the pseudo feedback.
Wei-Chao Lin
doaj   +1 more source

IITD-DBAI: Multi-Stage Retrieval with Pseudo-Relevance Feedback and Query Reformulation [PDF]

open access: yesText Retrieval Conference, 2022
Resolving the contextual dependency is one of the most challenging tasks in the Conversational system. Our submission to CAsT-2021 aimed to preserve the key terms and the context in all subsequent turns and use classical Information retrieval methods. It
Shivani Choudhary
semanticscholar   +1 more source

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