Learning Expressive Ontologies

Author : J. Völker
Publisher : IOS Press
ISBN 13 : 161499336X
Total Pages : 274 pages
Book Rating : 4.60/5 ( download)

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Download or read book Learning Expressive Ontologies written by J. Völker and published by IOS Press. This book was released on 2009-06-25 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication advances the state-of-the-art in ontology learning by presenting a set of novel approaches to the semi-automatic acquisition, refinement and evaluation of logically complex axiomatizations. It has been motivated by the fact that the realization of the semantic web envisioned by Tim Berners-Lee is still hampered by the lack of ontological resources, while at the same time more and more applications of semantic technologies emerge from fast-growing areas such as e-business or life sciences. Such knowledge-intensive applications, requiring large scale reasoning over complex domains of interest, even more than the semantic web depend on the availability of expressive, high-quality axiomatizations. This knowledge acquisition bottleneck could be overcome by approaches to the automatic or semi-automatic construction of ontologies. Hence a huge number of ontology learning tools and frameworks have been developed in recent years, all of them aiming for the automatic or semi-automatic generation of ontologies from various kinds of data. However, both the quality and the expressivity of ontologies that can be acquired by the current state-of-the-art in ontology learning so far have failed to meet the expectations of people who argue in favor of powerful, knowledge-intensive applications based on logical inference. This work therefore takes a first, yet important, step towards the semi-automatic generation and maintenance of expressive ontologies.

Author : Paul Buitelaar
Publisher : IOS Press
ISBN 13 : 1586038184
Total Pages : 292 pages
Book Rating : 4.82/5 ( download)

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Download or read book Ontology Learning and Population written by Paul Buitelaar and published by IOS Press. This book was released on 2008 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: The promise of the Semantic Web is that future web pages will be annotated not only with bright colors and fancy fonts as they are now, but with annotation extracted from large domain ontologies that specify, to a computer in a way that it can exploit, what information is contained on the given web page. The presence of this information will allow software agents to examine pages and to make decisions about content as humans are able to do now. The classic method of building an ontology is to gather a committee of experts in the domain to be modeled by the ontology, and to have this committee.

Author : Philipp Cimiano
Publisher : Springer Science & Business Media
ISBN 13 : 0387392521
Total Pages : 362 pages
Book Rating : 4.23/5 ( download)

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Download or read book Ontology Learning and Population from Text written by Philipp Cimiano and published by Springer Science & Business Media. This book was released on 2006-12-11 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade, ontologies have received much attention within computer science and related disciplines, most often as the semantic web. Ontology Learning and Population from Text: Algorithms, Evaluation and Applications discusses ontologies for the semantic web, as well as knowledge management, information retrieval, text clustering and classification, as well as natural language processing. Ontology Learning and Population from Text: Algorithms, Evaluation and Applications is structured for research scientists and practitioners in industry. This book is also suitable for graduate-level students in computer science.

Author : Alexander Maedche
Publisher : Springer Science & Business Media
ISBN 13 : 1461509254
Total Pages : 253 pages
Book Rating : 4.57/5 ( download)

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Download or read book Ontology Learning for the Semantic Web written by Alexander Maedche and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ontology Learning for the Semantic Web explores techniques for applying knowledge discovery techniques to different web data sources (such as HTML documents, dictionaries, etc.), in order to support the task of engineering and maintaining ontologies. The approach of ontology learning proposed in Ontology Learning for the Semantic Web includes a number of complementary disciplines that feed in different types of unstructured and semi-structured data. This data is necessary in order to support a semi-automatic ontology engineering process. Ontology Learning for the Semantic Web is designed for researchers and developers of semantic web applications. It also serves as an excellent supplemental reference to advanced level courses in ontologies and the semantic web.

Author :
Publisher : IOS Press
ISBN 13 :
Total Pages : 4947 pages
Book Rating : 4./5 ( download)

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Download or read book written by and published by IOS Press. This book was released on with total page 4947 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Paul Buitelaar
Publisher : IOS Press
ISBN 13 : 9781586035235
Total Pages : 188 pages
Book Rating : 4.31/5 ( download)

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Download or read book Ontology Learning from Text written by Paul Buitelaar and published by IOS Press. This book was released on 2005 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest title in Black Library's premium line. Perturabo - master of siegecraft, and executioner of Olympia. Long has he lived in the shadow of his more favoured primarch brothers, frustrated by the mundane and ignominious duties which regularly fall to his Legion. When Fulgrim offers him the chance to lead an expedition in search of an ancient and destructive xenos weapon, the Iron Warriors and the Emperor's Children unite and venture deep into the heart of the great warp-rift known only as 'the Eye'. Pursued by a ragged band of survivors from Isstvan V and the revenants of a dead eldar world, they must work quickly if they are to unleash the devastating power of the Angel Exterminatus

Author : Steffen Staab
Publisher : Springer Science & Business Media
ISBN 13 : 3540926739
Total Pages : 809 pages
Book Rating : 4.33/5 ( download)

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Download or read book Handbook on Ontologies written by Steffen Staab and published by Springer Science & Business Media. This book was released on 2010-03-14 with total page 809 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ontology is a formal description of concepts and relationships that can exist for a community of human and/or machine agents. The notion of ontologies is crucial for the purpose of enabling knowledge sharing and reuse. The Handbook on Ontologies provides a comprehensive overview of the current status and future prospectives of the field of ontologies considering ontology languages, ontology engineering methods, example ontologies, infrastructures and technologies for ontologies, and how to bring this all into ontology-based infrastructures and applications that are among the best of their kind. The field of ontologies has tremendously developed and grown in the five years since the first edition of the "Handbook on Ontologies". Therefore, its revision includes 21 completely new chapters as well as a major re-working of 15 chapters transferred to this second edition.

Author : Gargouri, Faiez
Publisher : IGI Global
ISBN 13 : 1615208607
Total Pages : 384 pages
Book Rating : 4.09/5 ( download)

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Download or read book Ontology Theory, Management and Design: Advanced Tools and Models written by Gargouri, Faiez and published by IGI Global. This book was released on 2010-04-30 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The focus of this book is on information and communication sciences, computer science, and artificial intelligence and provides readers with access to the latest knowledge related to design, modeling and implementation of ontologies"--Provided by publisher.

Author : Gintarė Grigonytė
Publisher : Logos Verlag Berlin GmbH
ISBN 13 : 3832526579
Total Pages : 213 pages
Book Rating : 4.73/5 ( download)

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Download or read book Building and Evaluating Domain Ontologies written by Gintarė Grigonytė and published by Logos Verlag Berlin GmbH. This book was released on 2010 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ontology is a knowledge representation structure made up of concepts and their interrelations. It represents shared understanding delineated by some domain. The building of an ontology can be addressed from the perspective of natural language processing. This thesis discusses the validity and theoretical background of knowledge acquisition from natural language. It also presents the theoretical and experimental framework for NLP-driven ontology building and evaluation tasks.

Author : P. Buitelaar
Publisher : IOS Press
ISBN 13 : 1607502968
Total Pages : 292 pages
Book Rating : 4.68/5 ( download)

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Download or read book Ontology Learning and Population: Bridging the Gap Between Text and Knowledge written by P. Buitelaar and published by IOS Press. This book was released on 2008-01-31 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: The promise of the Semantic Web is that future web pages will be annotated not only with bright colors and fancy fonts as they are now, but with annotation extracted from large domain ontologies that specify, to a computer in a way that it can exploit, what information is contained on the given web page. The presence of this information will allow software agents to examine pages and to make decisions about content as humans are able to do now. The classic method of building an ontology is to gather a committee of experts in the domain to be modeled by the ontology, and to have this committee agree on which concepts cover the domain, on which terms describe which concepts, on what relations exist between each concept and what the possible attributes of each concept are. All ontology learning systems begin with an ontology structure, which may just be an empty logical structure, and a collection of texts in the domain to be modeled. An ontology learning system can be seen as an interplay between three things: an existing ontology, a collection of texts, and lexical syntactic patterns. The Semantic Web will only be a reality if we can create structured, unambiguous ontologies that model domain knowledge that computers can handle. The creation of vast arrays of such ontologies, to be used to mark-up web pages for the Semantic Web, can only be accomplished by computer tools that can extract and build large parts of these ontologies automatically. This book provides the state-of-art of many automatic extraction and modeling techniques for ontology building. The maturation of these techniques will lead to the creation of the Semantic Web.