Results 21 to 30 of about 1,705,573 (348)

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

Combining fields for query expansion and adaptive query expansion [PDF]

open access: yesInformation 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.
Iadh Ounis, Ben He
openaire   +2 more sources

Query Refinement into Information Retrieval Systems: An Overview

open access: yesJournal of Information and Organizational Sciences, 2023
Query, expressing the user need and requirement, has an important role, in an information retrieval system, for reaching a high accuracy search. In this paper, we present an overview of the different refinement operations that the query may undergo, in ...
Mawloud Mosbah
doaj   +1 more source

Neural text generation for query expansion in information retrieval

open access: yesWI/IAT, 2021
Expanding users’ query is a well-known way to improve the performance of document retrieval systems. Several approaches have been proposed in the literature, and some of them are considered as yielding state-of-the-art results in Information Retrieval ...
V. Claveau
semanticscholar   +1 more source

A New Approach in Query Expansion Methods for Improving Information Retrieval

open access: yesJurnal Informatika, 2021
This research develops a new approach to query expansion by integrating Association Rules (AR) and Ontology. In the proposed approach, there are several steps to expand the query, namely (1) the document retrieval step; (2) the step of query expansion ...
Lasmedi Afuan   +2 more
doaj   +1 more source

HASHTAG AND HIGHEST SCORED TERMS FOR EXPANDING QUERY

open access: yesJournal 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
doaj   +3 more sources

Word Embeddings-Based Pseudo Relevance Feedback Using Deep Averaging Networks for Arabic Document Retrieval

open access: yesJournal 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
doaj   +1 more source

A Query Expansion Benchmark on Social Media Information Retrieval: Which Methodology Performs Best and Aligns with Semantics?

open access: yesComputers, 2023
This paper presents a benchmarking survey on query expansion techniques for social media information retrieval, with a focus on comparing the performance of methods using semantic web technologies.
Evangelos A. Stathopoulos   +5 more
doaj   +1 more source

CEQE: Contextualized Embeddings for Query Expansion [PDF]

open access: yes, 2021
In this work we leverage recent advances in context-sensitive language models to improve the task of query expansion. Contextualized word representation models, such as ELMo and BERT, are rapidly replacing static embedding models. We propose a new model, Contextualized Embeddings for Query Expansion (CEQE), that utilizes query-focused contextualized ...
Naseri, Shahrzad   +3 more
openaire   +4 more sources

An Algorithm of Query Expansion for Chinese EMR Retrieval by Improving Expansion Term Weights and Retrieval Scores

open access: yesIEEE 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
doaj   +1 more source

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