Results 291 to 300 of about 1,705,573 (348)

Deep learning the semantics of change sequences for query expansion

Software, Practice & Experience, 2019
The overexpansion problem negatively affects the quality of query expansion. To improve the quality of queries for searching code, this paper proposed a DBN‐based algorithm for effective query expansion.
Qing Huang, Yang Yang, Ming Cheng
semanticscholar   +1 more source

Neural query expansion for code search

MAPL@PLDI, 2019
Searching repositories of existing source code for code snippets is a key task in software engineering. Over the years, many approaches to this problem have been proposed. One recent tool called NCS, takes in a natural language query and outputs relevant
Jason Liu, Seohyun Kim, V. Murali, Swarat Chaudhuri, S. Chandra   +4 more
semanticscholar   +1 more source

Query expansion based on ontology for Vietnamese query

Proceedings of the 14th International Conference on Information Integration and Web-based Applications & Services, 2012
User's query sometimes does not fully reflect the semantics, so the information retrieval systems return no results as expected results, it is necessary to add semantics to the user's query. The paper represents how to add semantics into a query in Vietnamese language based on Ontology of Object Member Property (OOMP) by improved Similar Noun Phrase ...
Tran Anh Tuan, Nguyen Chanh Thanh, Phan Thi Tuoi   +2 more
openaire   +2 more sources

Deep Neural Networks for Query Expansion using Word Embeddings

European Conference on Information Retrieval, 2018
Query expansion is a method for alleviating the vocabulary mismatch problem present in information retrieval tasks. Previous works have shown that terms selected for query expansion by traditional methods such as pseudo-relevance feedback are not always ...
Ayyoob Imani, Amir Vakili, Ali Montazer, A. Shakery   +3 more
semanticscholar   +1 more source

Query Expansion by Taxonomy

2008
The use of taxonomies and ontologies as a foundation for enhancing textual information base access has recently gained increased attention in the field of information retrieval. The objective is to provide a domain model of an application domain where key concepts are organized and related. If queries and information base objects can be mapped to this,
Troels Andreasen, Henrik Bulskov
openaire   +1 more source

Selecting expansion terms in automatic query expansion

Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval, 2001
In automatic query expansion, where queries are automatically expanded with terms not in the original query but extracted from initially retrieved top-ranked documents, each term in the top-ranked documents is evaluated for its usefulness as an expansion term to be added to the original query.
Yasushi Ogawa, Hiroko Mano
openaire   +2 more sources

Rare Query Expansion Through Generative Adversarial Networks in Search Advertising

Knowledge Discovery and Data Mining, 2018
Generative Adversarial Networks (GAN) have achieved great success in generating realistic synthetic data like images, tags, and sentences. We explore using GAN to generate bid keywords directly from query in sponsored search ads selection, especially for
Mu-Chu Lee, Bin Gao, Ruofei Zhang
semanticscholar   +1 more source

A survey of query expansion, query suggestion and query refinement techniques

2015 4th International Conference on Software Engineering and Computer Systems (ICSECS), 2015
The ineffectiveness of information retrieval systems often caused by the inaccurate use of keywords in a query. In order to solve the ineffectiveness problem in information retrieval systems, many solutions have been proposed over the years. The most common techniques are revolving around query modification techniques such as query expansion, query ...
Xiuqin Ma, Hongwu Qin, Siau-Chuin Liew, Jessie Ooi   +3 more
openaire   +2 more sources

Query expansion and query translation as logical inference

Journal of the American Society for Information Science and Technology, 2003
AbstractA number of studies have examined the problems of query expansion in monolingual Information Retrieval (IR), and query translation for crosslanguage IR. However, no link has been made between them. This article first shows that query translation is a special case of query expansion. There is also another set of studies on inferential IR. Again,
openaire   +2 more sources

Real-time feedback query expansion technique for supporting scholarly search using citation network analysis

Journal of information science, 2019
Scholars routinely search relevant papers to discover and put a new idea into proper context. Despite ongoing advances in scholarly retrieval technologies, locating relevant papers through keyword queries is still quite challenging due to the massive ...
S. Khalid, Shengli Wu, A. Alam, Irfan Ullah   +3 more
semanticscholar   +1 more source