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Abstract

An ontology is a description (like a formal specification of a program) of concepts and relationships that can exist for an agent or a community of agents. The concept is important 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. The handbook demonstrates standards that have been created recently, it surveys methods that have been developed and it shows how to bring both into practice of ontology infrastructures and applications that are the best of their kind.

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Abstract

For courses in Expert Systems, Knowledge-Based Systems, Artificial Intelligence or Decision Support Systems, this book embodies the fact that expert systems now extend beyond the field of computer science into such areas as engineering and business. It offers a comprehensive understanding of expert systems and shows their application to real world problems. The material is presented in such a way that the student needs no previous experience in computers or computer programming. The book addresses all of the topics necessary to understand, build, validate, and implement expert systems - with many examples, exercises, and problems. A working version of EXSYS - a microcomputer-based expert systems software program - is packaged with the text.

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Abstract

Statistical approaches to processing natural language text have become dominant in recent years. This foundational text is the first comprehensive introduction to statistical Natural Language Processing (NLP) to appear. The book contains all the theory and algorithms needed for building NLP tools. It provides broad but rigorous coverage of mathematical and linguistic foundations, as well as detailed discussion of statistical methods, allowing students and researchers to construct their own implementations. The book covers collocation finding, word sense disambiguation, probabilistic parsing, information retrieval, and other applications.