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Showing 1 to 12 of 12 for “"Query formulation"”.
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Supporting Text Retrieval Query Formulation In Software Engineering
… irrelevant results. </p> <p>The quality of a query indicates the relevance of the results returned by TR in response to the query and can give an indication if the results are worth investigating or a reformulation of the query should be sought instead. Knowing the quality of the query could …
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The effect of denormalized schemas on ad-hoc query formulation: a human factors experiment in database design
… external relational database schema on end-user query success. It has been suggested in the literature that end-user query success might be improved by presenting external schema in lower level normal forms. This speculation is based on an analytical study of one particular class of query, …
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Intent modeling and automatic query reformulation for search engine systems
… subject: ambiguous search intent, ineffective query formulation and vague relevance criteria. To systematically study these problems, the thesis consists of three parts. In the first part, I study search intent ambiguity in search engine queries and propose a click pattern-based method that …
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Efficient Indexing, Browsing and Retrieval of Image /Video Content
… retrieval performance and alleviates the user's query formulation burden; and (iii) introduction of a video hierarchical structure and construction of video Table of Contents to facilitate the video analysis and retrieval. Extensive experimental results over large test data sets have validated …
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Eye Tracking: A Perceptual Interface for Content Based Image Retrieval
… Based Image Retrieval: (i) improvements in query formulation for visual search and (ii) new methods for visual search using attentional weighting. Futhermore it was demonstrated that users are able to find target images at sufficient speeds indicating that pre-attentive activity is playing a …
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Improving Web Search for Difficult Queries
… quality for difficult queries by: (1) Effective query reformulation, i.e., improving a search engine in the stage of query formulation. A query is difficult because it does not contain the right keywords or lacks discriminative keywords. A better formulation of query by addressing vocabulary …
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Improving RDF data with data mining
… data enrichment, ontology improvement, and query relaxation. Auto-completion remedies the problem of inconsistent ontology usage, providing an editing user with a sorted list of commonly used predicates. A combination of different configurations step extends this approach to create …
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Systematic optimization of search engines for difficult queries
… defining a semantic smoothing language model. A query can be difficult because it does not contain the optimal choice of related terms, or lacks sufficient discriminative terms. In the pre-retrieval stage, using semantic smoothing during query formulation can mitigate the effect of those …
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RELEVANCE FEEDBACK TECHNIQUES FOR CONTENT-BASED IMAGE RETRIEVAL
… of the features to be used for retrieval, the query formulation process may not be transparent to him. In particular, without detailed knowledge of the collection make-up and retrieval environment, most users find it difficult to formulate queries that are well designed for retrieval purposes. …
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Intelligent information retrieval from the World Wide Web using fuzzy user modelling.
… and user modelling to the process of user query formulation, in order to test the research issue. This issue was whether the application of these techniques could improve the IR process. A prototype system, the Fuzzy Modelling Query Assistant (FMQA), was developed that attempts …
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Contextual Information Retrieval from the WWW
Contextual information retrieval (CIR) is a critical technique for today’s search engines in terms of facilitating queries and returning relevant information. Despite its importance, little progress has been made in its application, due to the difficulty of capturing and representing contextual …
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A informática na educação
O estudo da relação entre o conhecimento que os professores têm sobre informática, a utilização que fazem do computador na sala de aula e a forma como encaram as opções metodológicas que proporcionem o sucesso do ensinoaprendizagem, foi o objectivo desta dissertação. Neste sentido, procurou-se …