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Books > Computing & IT > Applications of computing > Databases
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Ontology-Based Query Processing for Global Information Systems (Hardcover, 2001 ed.)
Loot Price: R4,479
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Ontology-Based Query Processing for Global Information Systems (Hardcover, 2001 ed.)
Series: The Springer International Series in Engineering and Computer Science, 619
Expected to ship within 10 - 15 working days
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Today we are witnessing an exponential growth of information
accumulated within universities, corporations, and government
organizations. Autonomous repositories that store different types
of digital data in multiple formats are becoming available for use
on the fast-evolving global information systems infrastructure.
More concretely, with the World Wide Web and related
internetworking technologies, there has been an explosion in the
types, availability, and volume of data accessible to a global
information system. However, this information overload makes it
nearly impossible for users to be aware of the locations,
organization or structures, query languages, and semantics of the
information in various repositories. Available browsing and
navigation tools assist users in locating information resources on
the Internet. However, there is a real need to complement current
browsing and keyword-based techniques with concept-based
approaches. An important next step should be to support queries
that do not contain information describing location or manipulation
of relevant resources. Ontology-Based Query Processing for Global
Information Systems describes an initiative for enhancing query
processing in a global information system. The following are some
of the relevant features: Providing semantic descriptions of data
repositories using ontologies; Dealing with different vocabularies
so that users are not forced to use a common one; Defining a
strategy that permits the incremental enrichment of answers by
visiting new ontologies; Managing imprecise answers and estimations
of the incurred loss of information. In summary, technologies such
as information brokerage, domain ontologies, andestimation of
imprecision in answers based on vocabulary heterogeneity have been
synthesized with Internet computing, representing an advance in
developing semantics-based information access on the Web.
Theoretical results are complemented by the presentation of a
prototype that implements the main ideas presented in this book.
Ontology-Based Query Processing for Global Information Systems is
suitable as a secondary text for a graduate-level course, and as a
reference for researchers and practitioners in industry.
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