Results 11 to 20 of about 1,934,018 (397)
A Vertical PRF Architecture for Microblog Search [PDF]
, 2018 In microblog retrieval, query expansion can be essential to obtain good search results due to the short size of queries and posts. Since information in microblogs is highly dynamic, an up-to-date index coupled with pseudo-relevance feedback (PRF) with an external corpus has a higher chance of retrieving more relevant documents and improving ranking. In
Arguello J. +5 more
arxiv +3 more sources
Orthogonal Query Expansion [PDF]
arXiv, 2011 Over the last fifteen years, web searching has seen tremendous improvements. Starting from a nearly random collection of matching pages in 1995, today, search engines tend to satisfy the user's informational need on well-formulated queries. One of the main remaining challenges is to satisfy the users' needs when they provide a poorly formulated query ...
Ackerman, Margareta +2 more
arxiv +3 more sources
A competitive environment for exploratory query expansion [PDF]
, 2008 Most information workers query digital libraries many times a day. Yet people have little opportunity to hone their skills in a controlled environment, or compare their performance with others in an objective way.
David Milne +2 more
openalex +5 more sources
Coupled intrinsic and extrinsic human language resource-based query expansion [PDF]
Knowledge & Information Systems 2018, 2020 Poor information retrieval performance has often been attributed to the query-document vocabulary mismatch problem which is defined as the difficulty for human users to formulate precise natural language queries that are in line with the vocabulary of the documents deemed relevant to a specific search goal.
Bhawani Selvaretnam, Mohammed Belkhatir
arxiv +3 more sources
Translating queries into snippets for improved query expansion [PDF]
Proceedings of the 22nd International Conference on Computational Linguistics - COLING '08, 2008 User logs of search engines have recently been applied successfully to improve various aspects of web search quality. In this paper, we will apply pairs of user queries and snippets of clicked results to train a machine translation model to bridge the "lexical gap" between query and document space.
Stefan Riezler +2 more
openalex +4 more sources
Conqueries: An Agent That Supports Query Expansion [PDF]
, 2005 This article presents Conqueries, an agent that assists users during their searches on search engines. The system recommends terms and modifiers to users so that they can reformulate their queries. The system unobtrusively learns the user's current needs in order to propose personalized lists of keywords.
Jean-Yves Delort
openalex +5 more sources
Query Expansion Based on Clustered Results [PDF]
Proceedings of the VLDB Endowment (PVLDB), Vol. 4, No. 6, pp.
350-361 (2011), 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
arxiv +5 more sources
Exploring Query Categorisation for Query Expansion: A Study [PDF]
arXiv, 2015 The vocabulary mismatch problem is one of the important challenges facing traditional keyword-based Information Retrieval Systems. The aim of query expansion (QE) is to reduce this query-document mismatch by adding related or synonymous words or phrases to the query.
Pal, Dipasree +2 more
arxiv +3 more sources
Query recovery of short user queries [PDF]
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010 User queries to search engines are observed to predominantly contain inflected content words but lack stopwords and capitalization. Thus, they often resemble natural language queries after case folding and stopword removal. Query recovery aims to generate a linguistically well-formed query from a given user query as input to provide natural language ...
Leveling, Johannes, Jones, Gareth J.F.
openaire +6 more sources
A multi-dimensional semantic pseudo-relevance feedback framework for information retrieval [PDF]
Scientific ReportsPre-trained models have garnered significant attention in the field of information retrieval, particularly for improving document ranking. Typically, an initial retrieval step using sparse methods such as BM25 is employed to obtain a set of pseudo ...
Min Pan +4 more
doaj +2 more sources