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Showing 1 to 17 of 17 for “"controlled vocabulary"”.
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Predicting controlled vocabulary based on text and citations: Case studies in medical subject headings in MEDLINE and patents
… makes three contributions in the area of controlled vocabulary prediction of Medical Subject Headings. The first contribution is a new partial matching measure based on distributional semantics. The second contribution is a probabilistic model based on text similarity and citations. The …
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Retrieval Performance in a Full Text Journal Article Database
… and the value-added fields of abstract and controlled vocabulary.
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GCell A Sub-Cellular Localization Tool
… biological pathway detection for genes by using controlled vocabulary and various publicly available biological databases has led to the concept and implementation of GCell. This system provides a researcher to move from raw text data at a broader level to a much more detailed view of pathways …
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Human-competitive automatic topic indexing
… by librarians, who select topics from a controlled vocabulary; tagging, a popular activity of web users, who choose topics freely; and a new method of keyphrase extraction, where topics are equated to Wikipedia article names. A general two-stage algorithm is introduced that first selects …
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Automation of Drosophila gene expression pattern image annotation : development of web-based image annotation tool and application of machine learning methods
… and shapes within images using terms from a controlled vocabulary. Second, machine learning methods for automatically predicting vocabulary terms for a given image based on image feature data were explored and implemented. The results of the applied machine learning methods are promising in …
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Evaluation of Annotation Performances between Automated and Curated Databases of <i>E.COLI</i> Using the Correlation Coefficient
… the highest correlation coefficient of 0.16. The controlled vocabulary system of gene ontology was not sufficient to compare two annotated databases. The addition of gene ontology terms from translation libraries greatly increased the performance of these comparisons. In general, as the number of …
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Exploring the Growth of Text-Reading Fluency in Upper-Elementary English Language Learners during Instruction based on Repeated Reading
… instruction: (a) silent repeated reading of controlled-vocabulary texts, with comprehension checks, and (b) repeated oral reading for performance, with explicit instruction about oral text-reading fluency. Instruction was altered as necessary, based on formative data, to meet the pedagogical …
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Smoothing the information seeking path: Removing representational obstacles in the middle-school digital library.
… of match analysis between search terms and controlled vocabulary were developed. There are five chapters with twelve supporting appendixes. Chapter One presents an introduction to the problem and reviews the pilot study. Chapter Two presents the literature review and theoretical basis for …
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Performance analysis of text classification algorithms for PubMed articles
… Medical Subject Headings (MeSH) thesaurus is a controlled vocabulary developed by the US National Library of Medicine (NLM) for indexing articles in Pubmed Central (PMC) archive. The annotation process is a complex and time-consuming task relying on subjective manual assignment of MeSH concepts. …
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Enriching Knowledge Graphs Using Machine Learning Techniques
… existing graph embedding technique trained on a controlled vocabulary called AGROVOC, which is published by the Food and Agriculture Organization of the United Nations. AGROVOC includes terms and classes in the agriculture and food domains. As a result, FoodKG can enhance knowledge graphs with …
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A qualitative study of thesaurus integration for end-user searching
… basis for a model of information searching in controlled vocabulary enhanced systems was developed and subsequently refined with data from the second in-depth study. This model aims in particular at facilitating the design and development of such systems. It consists of a textual and graphical …
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Curation, characterisation and prediction of Drosophila signalling pathway members
… pathways, and annotated using the Gene Ontology controlled vocabulary. The results of this review have been presented in a publicly available resource in the FlyBase database. Second, I performed analyses of various published data aiming to characterise the biological properties of genes within …
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The classification of gene products in the molecular biology domain: Realism, objectivity, and the limitations of the Gene Ontology
Background: Controlled vocabularies in the molecular biology domain exist to facilitate data integration across database resources. One such tool is the Gene Ontology (GO), a classification designed to act as a universal index for gene products from any species. The Gene Ontology is used …
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Ontology-based document representation for biomedical information retrieval
… The Medical Subject Headings (MeSH) is the controlled vocabulary used in MEDLINE to annotate the conceptual content of biomedical articles. The annotations include information about the importance of MeSH concepts in the article, and their contexts. The MeSH ontology is organized in several …
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Collection-Level Subject Access in Aggregations of Digital Collections: Metadata Application and Use
… proportion of collection records without controlled-vocabulary subject metadata (Temporal Coverage, Geographic Coverage, Subjects, and Objects), and free-text metadata (the Description field). Observation data shows that collection metadata records in Opening History and American Memory …
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Usefulness of social tagging in organizing and providing access to the web: An analysis of indexing consistency and quality
… knowledge organization systems based on controlled vocabulary which is not very well suited to web resources, and (2) information is organized by professionals not by users, which means it does not reflect intuitively and instantaneously expressed users’ current needs. In order to explore …
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Comparing Library of Congress subject headings to keyword searches involving LGBT topics: a pilot study
… depending on who you ask, controlling this vocabulary is a difficult task, though an admirable one. The aim of this study is to provide a sample of language that patrons use to search for these topics. This sample can then be used to update Library of Congress Subject Headings, or to aid in …