Results 281 to 290 of about 1,705,573 (348)

Query Expansion with Freebase [PDF]

open access: possibleProceedings of the 2015 International Conference on The Theory of Information Retrieval, 2015
Large knowledge bases are being developed to describe entities, their attributes, and their relationships to other entities. Prior research mostly focuses on the construction of knowledge bases, while how to use them in information retrieval is still an open problem.
Jamie Callan, Chenyan Xiong
openaire   +1 more source

Attention-Based Query Expansion Learning

European Conference on Computer Vision, 2020
Query expansion is a technique widely used in image search consisting in combining highly ranked images from an original query into an expanded query that is then reissued, generally leading to increased recall and precision. An important aspect of query
Albert Gordo   +2 more
semanticscholar   +1 more source

Query expansion using associated queries

Proceedings of the twelfth international conference on Information and knowledge management - CIKM '03, 2003
Hundreds of millions of users each day use web search engines to meet their information needs. Advances in web search effectiveness are therefore perhaps the most significant public outcomes of IR research. Query expansion is one such method for improving the effectiveness of ranked retrieval by adding additional terms to a query.
Justin Zobel   +3 more
openaire   +2 more sources

Query-drift prevention for robust query expansion [PDF]

open access: possibleProceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, 2008
Pseudo-feedback-based automatic query expansion yields effective retrieval performance on average, but results in performance inferior to that of using the original query for many information needs. We address an important cause of this robustness issue, namely, the query drift problem, by fusing the results retrieved in response to the original query ...
Liron Zighelnic, Oren Kurland
openaire   +1 more source

On relevance, time and query expansion

Proceedings of the 20th ACM international conference on Information and knowledge management, 2011
We present the results of our exploratory analysis on the relationship that exists between relevance and time. We observe how the amount of documents published in a given interval of time is related to the probability of relevance, and, using the time series analysis, we show the existence of a correlation between time and relevance.
Amati, G, Amodeo, G, GAMBOSI, GIORGIO
openaire   +4 more sources

QuantQueryEXP : A novel strategic approach for query expansion based on quantum computing principles

Journal of Discrete Mathematical Sciences and Cryptography, 2020
In our current world, numerous innovative approaches aimed at expansion and recommendation of queries are developing to satisfy the mounting tendencies of social networking and the internet.
Ishwar S. Kaushik   +2 more
semanticscholar   +1 more source

Social semantic query expansion

ACM Transactions on Intelligent Systems and Technology, 2013
Weak semantic techniques rely on the integration of Semantic Web techniques with social annotations and aim to embrace the strengths of both. In this article, we propose a novel weak semantic technique for query expansion. Traditional query expansion techniques are based on the computation of two-dimensional co-occurrence matrices.
BIANCALANA, CLAUDIO   +3 more
openaire   +2 more sources

Optimizing a Query by Transformation and Expansion

2017
In the biomedical sector not only the amount of information produced and uploaded into the web is enormous, but also the number of sources where these data can be found. Clinicians and researchers spend huge amounts of time on trying to access this information and to filter the most important answers to a given question.
Alexander Knurr   +8 more
openaire   +3 more sources

Probabilistic query expansion using query logs

Proceedings of the eleventh international conference on World Wide Web - WWW '02, 2002
Query expansion has long been suggested as an effective way to resolve the short query and word mismatching problems. A number of query expansion methods have been proposed in traditional information retrieval. However, these previous methods do not take into account the specific characteristics of web searching; in particular, of the availability of ...
Hang Cui   +3 more
openaire   +2 more sources

When query expansion fails

Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval - SIGIR '03, 2003
The effectiveness of queries in information retrieval can be improved through query expansion. This technique automatically introduces additional query terms that are statistically likely to match documents on the intended topic. However, query expansion techniques rely on fixed parameters.
Bodo Billerbeck, Justin Zobel
openaire   +1 more source

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