Results 51 to 60 of about 1,872,988 (376)

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   +2 more sources

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 Query Expansion Method Using Multinomial Naive Bayes

open access: yesApplied Sciences, 2021
Information retrieval (IR) aims to obtain relevant information according to a certain user need and involves a great diversity of data such as texts, images, or videos. Query expansion techniques, as part of information retrieval (IR), are used to obtain
Sergio Silva   +4 more
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

Supporting Scholarly Search by Query Expansion and Citation Analysis

open access: yes, 2020
Published scholarly articles have increased exponentially in recent years. This growth has brought challenges for academic researchers in locating the most relevant papers in their fields of interest. The reasons for this vary.
S. Khalid, S. Wu
semanticscholar   +1 more source

An Initial Investigation of Query Expansion Bias [PDF]

open access: yesProceedings of the ACM SIGIR International Conference on Theory of Information Retrieval, 2017
Query expansion is a useful retrieval mechanism for creating more verbose queries from the users initial keyword search. Query expansion generally have multiple parameters that allowthe user to define how many terms and where those terms come from are introduced to the expanded query.
Wilkie, Colin, Azzopardi, Leif
openaire   +4 more sources

Comparative Analysis of Information Retrieval Models on Quran Dataset in Cross-Language Information Retrieval Systems

open access: yesIEEE Access, 2021
English is an international language used for communication worldwide but still many cannot read, write, understand, or communicate in English. On the other hand, the World Wide Web has unlimited resources of information in different languages which ...
Ayman A. Taan   +4 more
doaj   +1 more source

Query expansion based on clustered results [PDF]

open access: yesProceedings of the VLDB Endowment, 2011
Query expansion is a functionality of search engines that suggests a set of related queries for a user-issued keyword query. Typical corpus-driven keyword query expansion approaches return popular words in the results as expanded queries. Using these approaches, the expanded queries may correspond to a subset of possible query semantics, and thus miss ...
Ziyang Liu   +2 more
openaire   +3 more sources

Ranks Aggregation and Semantic Genetic Approach based Hybrid Model for Query Expansion

open access: yesInternational Journal of Computational Intelligence Systems, 2017
Effective query expansion terms selection methods are really very important for improving the accuracy and efficiency of Pseudo-Relevance Feedback (PRF) based automatic query expansion techniques in information retrieval system.
Jagendra Singh
doaj   +1 more source

Improving Retrieval Results with discipline-specific Query Expansion [PDF]

open access: yes, 2012
Choosing the right terms to describe an information need is becoming more difficult as the amount of available information increases. Search-Term-Recommendation (STR) systems can help to overcome these problems. This paper evaluates the benefits that may
Lüke, Thomas   +2 more
core   +1 more source

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