A Semantic Approach to Question Answering

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Focusing on the evolution of question answering (QA) systems, the book explores the shift from traditional lexical techniques to advanced semantic approaches. Nico Schlaefer examines how semantic resources enhance QA accuracy by transforming questions into structured formats and using ontologies to enrich terms with related concepts. Evaluated within the Ephyra framework, this work is aimed at researchers and developers in natural language processing and information retrieval, presenting key algorithms and concepts from statistical modeling and graph theory.