Query expansion using the clustering of pseudo relevant documents with query sensitive similarity [PDF]
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
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
An Improved Retrievability-Based Cluster-Resampling Approach for Pseudo Relevance Feedback
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
A Study of Word Bigrams for Pseudo-relevance Feedback in Information Retrieval [PDF]
Traditional information retrieval models mostly adopt a term independence assumption and are based on single terms or unigrams. Past efforts have attempted to go beyond this assumption, such as by using contiguous terms (i.e.
Edward Kai Fung Dang +2 more
doaj +3 more sources
A boosting approach to improving pseudo-relevance feedback [PDF]
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback helps many queries, it also often hurts many other queries, limiting its usefulness in real retrieval applications.
Yuanhua Lv, ChengXiang Zhai, Wan Chen
openaire +1 more source
Positional relevance model for pseudo-relevance feedback [PDF]
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
Improving Pseudo-Relevance Feedback With Neural Network-Based Word Representations
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
Pseudo-Relevance Feedback for Multiple Representation Dense Retrieval [PDF]
10 ...
Wang, Xiao +3 more
openaire +2 more sources
Aggregation of Multiple Pseudo Relevance Feedbacks for Image Search Re-Ranking
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
Query Expansion for Arabic Information Retrieval Model: Performance Analysis and Modification [PDF]
Information retrieval aims to find all relevant documents responding to a query from textual data. A goodinformation retrieval system should retrieve only those documents that satisfy the user query.
Ayat Elnahaas +4 more
doaj +1 more source

