Results 41 to 50 of about 1,392,110 (286)

External query reformulation for text-based image retrieval [PDF]

open access: yes, 2011
In text-based image retrieval, the Incomplete Annotation Problem (IAP) can greatly degrade retrieval effectiveness. A standard method used to address this problem is pseudo relevance feedback (PRF) which updates user queries by adding feedback terms ...
Min, Jinming, Jones, Gareth J.F.
core   +3 more sources

Document expansion for image retrieval [PDF]

open access: yes, 2010
Successful information retrieval requires effective matching between the user's search request and the contents of relevant documents. Often the request entered by a user may not use the same topic relevant terms as the authors' of the documents.
Min, Jinming   +3 more
core   +4 more sources

Query expansion and MEDLINE

open access: yesInformation Processing & Management, 1996
Abstract This paper evaluates the retrieval effectiveness of query expansion strategies on a MEDLINE test collection using Cornell University's SMART retrieval system. Three expansion strategies are tested on their ability to identify appropriate McSH terms for user queries: expansion using an inter-field statistical thesaurus, expansion via ...
openaire   +2 more sources

Cluster-based query expansion [PDF]

open access: yesProceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval, 2009
We demonstrate the merits of using document clusters that are created offline to improve the overall effectiveness and performance robustness of a state-of-the-art pseudo-feedback-based query expansion method -- the relevance model.
Inna Gelfer Kalmanovich, Oren Kurland
openaire   +1 more source

Query dependent pseudo-relevance feedback based on wikipedia [PDF]

open access: yes, 2009
Pseudo-relevance feedback (PRF) via query-expansion has been proven to be effective in many information retrieval (IR) tasks. In most existing work, the top-ranked documents from an initial search are assumed to be relevant and used for PRF.
Xu, Yang   +5 more
core   +2 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

Exploring sentence level query expansion in language modeling based information retrieval [PDF]

open access: yes, 2010
We introduce two novel methods for query expansion in information retrieval (IR). The basis of these methods is to add the most similar sentences extracted from pseudo-relevant documents to the original query.
Ganguly, Debasis   +2 more
core   +2 more sources

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom   +15 more
wiley   +1 more source

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

Pediatric Idiopathic Multicentric Castleman Disease Is Often Severe But Responsive to Siltuximab

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Idiopathic multicentric Castleman disease (iMCD) is a potentially fatal immunologic disorder marked by widespread lymphadenopathy and inflammation. Siltuximab, an interleukin‐6 (IL‐6) inhibitor, is the only FDA‐approved treatment for adult patients with iMCD.
Bridget Austin   +17 more
wiley   +1 more source

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