Description Logics in Multimedia Reasoning

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This book illustrates the use of description logic-based formalisms for creating, indexing, and reusing multimedia semantics. It introduces multimedia semantics through a comprehensive review of current standards, technologies, ontologies, and software tools. Emphasizing the significance of formal grounding in knowledge representation, it explores multimedia reasoning's potential for intelligent applications and presents both theoretical discussions and practical best practices in ontology engineering. Readers with a background in mathematical logic, the Internet, and multimedia will learn to develop formally grounded multimedia ontologies and map concept definitions to high-level descriptors. The text covers core reasoning tasks, algorithms, and leading reasoners, demonstrating scene interpretation through reasoning. It provides an essential introduction to the formal grounding of web ontologies and a thorough review of description logics (DLs) in terms of expressivity and reasoning complexity. Best practices for developing multimedia ontologies are outlined to ensure decidability and achieve the desired expressivity while maximizing reasoning potential. The capabilities of multimedia ontologies are showcased through DL implementations, focusing on multimedia reasoning applications.