Download or read book Semi Automatic Ontology Development Processes and Resources written by Pazienza, Maria Teresa and published by IGI Global. This book was released on 2012-02-29 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book includes state-of-the-art research results aimed at the automation of ontology development processes and the reuse of external resources becoming a reality, thus being of interest for a wide and diversified community of users"--

Download or read book Semi automatic Ontology Development written by Maria Teresa Pazienza and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book includes state-of-the-art research results aimed at the automation of ontology development processes and the reuse of external resources becoming a reality, thus being of interest for a wide and diversified community of users"--Provided by publisher.

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 2002-02-28 with total page 34 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.

Download or read book Learning Expressive Ontologies written by Johanna Völker and published by . This book was released on 2009 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ontological Engineering written by Asunción Gómez-Pérez and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ontological Engineering refers to the set of activities that concern the ontology development process, the ontology life cycle, the methods and methodologies for building ontologies, and the tool suites and languages that support them. During the last decade, increasing attention has been focused on ontologies and Ontological Engineering. Ontologies are now widely used in Knowledge Engineering, Artificial Intelligence and Computer Science; in applications related to knowledge management, natural language processing, e-commerce, intelligent integration information, information retrieval, integration of databases, b- informatics, and education; and in new emerging fields like the Semantic Web. Primary goals of this book are to acquaint students, researchers and developers of information systems with the basic concepts and major issues of Ontological Engineering, as well as to make ontologies more understandable to those computer science engineers that integrate ontologies into their information systems. We have paid special attention to the influence that ontologies have on the Semantic Web. Pointers to the Semantic Web appear in all the chapters, but specially in the chapter on ontology languages and tools.

Download or read book Ontology Management written by Martin Hepp and published by Springer Science & Business Media. This book was released on 2007-10-23 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ontology Managememt provides an up-to-date, scientifically correct, concise and easy-to-read reference on this topic. The book includes relevant tasks, practical and theoretical challenges, limitations and methodologies, plus available tooling support. The editors discuss integrating the conceptual and technical dimensions with a business view on using ontologies, stressing the cost dimension of ontology engineering and offering guidance on how to derive ontologies semi-automatically from existing standards and specifications.

Download or read book Ontology Representation written by R. Hoekstra and published by IOS Press. This book was released on 2009-07-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the (in)famous definition states: "An ontology is an explicit specification of a conceptualization". However, an ontology is also a philosophical theory of existence, a knowledge management resource, a database schema, or a type of knowledge representation artefact on the semantic web. Over the years the term 'ontology' has been used in so many different ways that one can no longer be sure what is meant by it at any given occasion. This book clarifies the role ontologies play in knowledge representation; it discusses the distinctions with their use in philosophy, gives insight in the features, rationale and limitations of the OWL 2 web ontology language, and provides a critical review of methodologies and design principles advocated to improve the quality of ontologies. It covers both theory and practice of knowledge acquisition, representation and ontologies; it emphasises human understanding as knowledge structuring principle, and demonstrates this approach in the development of a core ontology of basic legal concepts (LKIF Core) and in the exploration of expressive ontology design patterns for the representation of social reality, change and causation, actions and transactions. In doing so it contributes to a better understanding of the representation of ontologies; or rather, what it means to do ontology representation.

Download or read book Content Ontology Design Patterns Qualities Methods and Tools written by Karl Hammar and published by Linköping University Electronic Press. This book was released on 2017-09-06 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ontologies are formal knowledge models that describe concepts and relationships and enable data integration, information search, and reasoning. Ontology Design Patterns (ODPs) are reusable solutions intended to simplify ontology development and support the use of semantic technologies by ontology engineers. ODPs document and package good modelling practices for reuse, ideally enabling inexperienced ontologists to construct high-quality ontologies. Although ODPs are already used for development, there are still remaining challenges that have not been addressed in the literature. These research gaps include a lack of knowledge about (1) which ODP features are important for ontology engineering, (2) less experienced developers' preferences and barriers for employing ODP tooling, and (3) the suitability of the eXtreme Design (XD) ODP usage methodology in non-academic contexts. This dissertation aims to close these gaps by combining quantitative and qualitative methods, primarily based on five ontology engineering projects involving inexperienced ontologists. A series of ontology engineering workshops and surveys provided data about developer preferences regarding ODP features, ODP usage methodology, and ODP tooling needs. Other data sources are ontologies and ODPs published on the web, which have been studied in detail. To evaluate tooling improvements, experimental approaches provide data from comparison of new tools and techniques against established alternatives. The analysis of the gathered data resulted in a set of measurable quality indicators that cover aspects of ODP documentation, formal representation or axiomatisation, and usage by ontologists. These indicators highlight quality trade-offs: for instance, between ODP Learnability and Reusability, or between Functional Suitability and Performance Efficiency. Furthermore, the results demonstrate a need for ODP tools that support three novel property specialisation strategies, and highlight the preference of inexperienced developers for template-based ODP instantiation---neither of which are supported in prior tooling. The studies also resulted in improvements to ODP search engines based on ODP-specific attributes. Finally, the analysis shows that XD should include guidance for the developer roles and responsibilities in ontology engineering projects, suggestions on how to reuse existing ontology resources, and approaches for adapting XD to project-specific contexts.

Download or read book Applications and Practices in Ontology Design Extraction and Reasoning written by G. Cota and published by IOS Press. This book was released on 2020-12-02 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semantic Web technologies enable people to create data stores on the Web, build vocabularies, and write rules for handling data. They have been in use for several years now, and knowledge extraction and knowledge discovery are two key aspects investigated in a number of research fields which can potentially benefit from the application of semantic web technologies, and specifically from the development and reuse of ontologies. This book, Applications and Practices in Ontology Design, Extraction, and Reasoning, has as its main goal the provision of an overview of application fields for semantic web technologies. In particular, it investigates how state-of-the-art formal languages, models, methods, and applications of semantic web technologies reframe research questions and approaches in a number of research fields. The book also aims to showcase practical tools and background knowledge for the building and querying of ontologies. The first part of the book presents the state-of-the-art of ontology design, applications and practices in a number of communities, and in doing so it provides an overview of the latest approaches and techniques for building and reusing ontologies according to domain-dependent and independent requirements. Once the data is represented according to ontologies, it is important to be able to query and reason about them, also in the presence of uncertainty, vagueness and probabilities. The second part of the book covers some of the latest advances in the fields of ontology, semantics and reasoning, without losing sight of the book’s practical goals.

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.

Download or read book Ontological Engineering Approach of Developing Ontology of Information Science written by Ahlam F. Sawsaa and published by Anchor Academic Publishing. This book was released on 2015-08 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ontology has been a subject of many studies carried out in artificial intelligence (AI) and information system communities. Ontology has become an important component of the semantic web, covering a variety of knowledge domains. Although building domain ontologies still remains a big challenge with regard to its designing and implementation, there are still many areas that need to create ontologies. Information Science (IS) is one of these areas that need a unified ontology model to facilitate information access among the heterogeneous data resources and share a common understanding of the domain knowledge. Recently, the development of domain ontologies has become increasingly important for knowledge level interoperation and information integration. They provide functional features for AI and knowledge representation. Domain Ontology is a central foundation of growth for the semantic web that provides a general knowledge for correspondence and communication among heterogeneous systems. Particularly with a rise of ontology in the artificial intelligence (AI) domain, it can be seen as an almost inevitable development in computer science and AI in general.

Download or read book Cognitive Support for Semi automatic Ontology Mapping written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Structured vocabularies are often used to annotate and classify data. These vocabularies represent a shared understanding about the terms used within a specific domain. People often rely on overlapping, but independently developed terminologies. This representational divergence becomes problematic when researchers wish to share, find, and compare their data with others. One approach to resolving this is to create a mapping across the vocabularies. Generating these mappings is a difficult, semi-automatic process, requiring human intervention. There has been little research investigating how to aid users with performing this task, despite the important role the user typically plays. Much of the research focus has been to explore techniques to automatically determine correspondences between terms. In this thesis, we explore the user-side of mapping, specifically investigating how to support the user's decision making process and exploration of mappings. We combine data gathered from theories of human inference and decision making, an observational case study, online survey, and interview study to propose a cognitive support framework for ontology mapping. The framework describes the user information needs and the process users follow during mapping. We also propose a number of design principles, which help guide the development of an ontology mapping tool called CogZ. We evaluate the tool and thus implicitly the framework through a case study and controlled user study. The work presented in this thesis also helps to draw attention to the importance of the user role during the mapping process. We must incorporate a "human in the loop", where the human is essential to the process of developing a mapping. Helping to establish and harness this symbiotic relationship between human processes and the tool's automated process will allow people to work more efficiently and effectively, and afford them the time to concentrate on difficult tasks that are not easily automated.

Download or read book Theory and Applications of Ontology Computer Applications written by Roberto Poli and published by Springer Science & Business Media. This book was released on 2010-09-02 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ontology was once understood to be the philosophical inquiry into the structure of reality: the analysis and categorization of ‘what there is’. Recently, however, a field called ‘ontology’ has become part of the rapidly growing research industry in information technology. The two fields have more in common than just their name. Theory and Applications of Ontology is a two-volume anthology that aims to further an informed discussion about the relationship between ontology in philosophy and ontology in information technology. It fills an important lacuna in cutting-edge research on ontology in both fields, supplying stage-setting overview articles on history and method, presenting directions of current research in either field, and highlighting areas of productive interdisciplinary contact. Theory and Applications of Ontology: Computer Applications presents ontology in ways that philosophers are not likely to find elsewhere. The volume offers an overview of current research in ontology, distinguishing basic conceptual issues, domain applications, general frameworks, and mathematical formalisms. It introduces the reader to current research on frameworks and applications in information technology in ways that are sure to invite reflection and constructive responses from ontologists in philosophy.

Download or read book Towards the Semantic Web written by John Davies and published by Wiley. This book was released on 2003 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the current changes driven by the expansion of the World Wide Web, this book uses a different approach from other books on the market: it applies ontologies to electronically available information to improve the quality of knowledge management in large and distributed organizations. Ontologies are formal theories supporting knowledge sharing and reuse. They can be used to explicitly represent semantics of semi-structured information. These enable sophisticated automatic support for acquiring, maintaining and accessing information. Methodology and tools are developed for intelligent access to large volumes of semi-structured and textual information sources in intra- and extra-, and internet-based environments to employ the full power of ontologies in supporting knowledge management from the information client perspective and the information provider. The aim of the book is to support efficient and effective knowledge management and focuses on weakly-structured online information sources. It is aimed primarily at researchers in the area of knowledge management and information retrieval and will also be a useful reference for students in computer science at the postgraduate level and for business managers who are aiming to increase the corporations' information infrastructure. The Semantic Web is a very important initiative affecting the future of the WWW that is currently generating huge interest. The book covers several highly significant contributions to the semantic web research effort, including a new language for defining ontologies, several novel software tools and a coherent methodology for the application of the tools for business advantage. It also provides 3 case studies which give examples of the real benefits to be derived from the adoption of semantic-web based ontologies in "real world" situations. As such, the book is an excellent mixture of theory, tools and applications in an important area of WWW research. * Provides guidelines for introducing knowledge management concepts and tools into enterprises, to help knowledge providers present their knowledge efficiently and effectively. * Introduces an intelligent search tool that supports users in accessing information and a tool environment for maintenance, conversion and acquisition of information sources. * Discusses three large case studies which will help to develop the technology according to the actual needs of large and or virtual organisations and will provide a testbed for evaluating tools and methods. The book is aimed at people with at least a good understanding of existing WWW technology and some level of technical understanding of the underpinning technologies (XML/RDF). It will be of interest to graduate students, academic and industrial researchers in the field, and the many industrial personnel who are tracking WWW technology developments in order to understand the business implications. It could also be used to support undergraduate courses in the area but is not itself an introductory text.

Download or read book Collaboration Support for the Distributed Development of Ontologies written by Fan Bai and published by BoD – Books on Demand. This book was released on 2013 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of ontologies which aims at capturing knowledge as a formal structural framework, is an important foundation for a wide range of applications. Since ontology development is usually a collaborative activity which may span a long period of time, it is critical to provide developers with a suitable development environment that supports collaboration in a flexible manner and that facilitates the building of robust and accurate ontologies. In this dissertation, the author focusses his effort on providing an easy-to-use collaborative ontology development environment that supports both synchronous and asynchronous collaborative activities. Two prototype systems were developed to reach the goal based on an extensive requirement study. The first prototype system servers numerous functions in supporting synchronized cooperation. A Java based application provides developers with several functions. For example, with the help of group-awareness and a locking mechanism, involved developers become aware of actions from other users, which enables them to work without conflict in terms of editing the same ontology resources. Based on the experiences gathered from implementing the first prototype system, the requirement of supporting asynchronous cooperation was studied. A version control system especially in the fields of coping with ontology data structure is a central component to satisfy the requirement. This second approach primarily supports local workspaces that can be synchronized with a central server-based ontology store and is capable of controlling versions on the level of individual ontology resources. Although working in their own workspace ontology developers can achieve a consensual shared ontology through committing, updating and merging activities. Each version of an ontology resource will be preserved in the form of a snapshot. The evolution of either a single ontology resource or the entire ontology can further be illustrated to developers in a

Download or read book Automatic Ontology Construction for Query Based Information Access written by Suresh Kumar Govindaraj and published by LAP Lambert Academic Publishing. This book was released on 2015-09-14 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Question Answering systems that use local ontology as a knowledge source are trying to leverage deep linguistic and semantic analysis to understand the context of the natural language queries and to provide accurate answers. Automatic Ontology construction is an associated research area in Information System development. The Question Answering system framework proposed in this book introduces a novel knowledge management method called Concept Relational Ontology for developing a simple but reliable Question Answering system that uses very less NLP task and provides direct answer to the questions posed in natural languages.

Download or read book Ontology and the Semantic Web written by Robert M. Colomb and published by IOS Press. This book was released on 2007 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order for information systems supporting two different organizations to interoperate, there must be an agreement as to what the words mean. There are many such agreements in place, supporting information systems interoperation in many different application areas. Most of these agreements have been created as part of diverse systems development processes, but since the advent of the Semantic Web in the late 1990s, they have been studied as a kind of software artifact in their own right, called an ontology, or description of a shared world. This book brings together developments from philosophy, artificial intelligence and information systems to formulate a collection of functional requirements for ontology development. Once the functional requirements are established, the book looks at several ontology representation languages: RDFS, OWL, Common Logic and Topic Maps, to show how these languages support the functional requirements, what deficiencies there are, and how the languages relate to each other. Besides a collection of running examples used throughout the book, the entire treatment is supported by an extended example of a hypothetical ontology for the Olympic Games presented first as a set of chapter-end exercises and then as a set of solutions which illustrate the various points made in the text in the context of a single coherent development.