Results 61 to 70 of about 197,373 (301)

Effect of Expansion and Reformulation of Query on Improved Precision of Retrieval Results

open access: yesInternational Journal of Information Science and Management, 2017
Expansion and reformulation of queries are among the most common strategies employed by users in retrieval of initial results to coordinate them with their needs.
Hoda Shaker   +2 more
doaj  

Salton and Buckley’s Landmark Research in Experimental Text Information Retrieval

open access: yesEvidence Based Library and Information Practice, 2011
Objectives – To compare the performance of the vector space model and the probabilistic weighting model of relevance feedback for the overall purpose of determining the most useful relevance feedback procedures.
Christine F. Marton
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Improving query expansion using WordNet [PDF]

open access: yesJournal of the Association for Information Science and Technology, 2014
This study proposes a new way of using WordNet for query expansion (QE). We choose candidate expansion terms from a set of pseudo‐relevant documents; however, the usefulness of these terms is measured based on their definitions provided in a hand‐crafted lexical resource such as WordNet.
Pal, Dipasree   +2 more
openaire   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Document expansion for image retrieval [PDF]

open access: yes, 2010
Successful information retrieval requires e ective 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.
Jones, Gareth J.F.   +3 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Query recovery of short user queries: on query expansion with stopwords [PDF]

open access: yes, 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.
Jones, Gareth J.F., Leveling, Johannes
core   +2 more sources

Proximity relevance model for query expansion [PDF]

open access: yesProceedings of the 31st Annual ACM Symposium on Applied Computing, 2016
Query expansion (QE) aims at improving information retrieval effectiveness by enhancing the query formulation. Because users' queries are generally short and because of the language ambiguity, some information needs are difficult to satisfy. Query reformulation and QE methods have been developed to face this issue.
Ermakova, Liana   +2 more
openaire   +3 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

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