This new Springer volume provides a comprehensive and detailed look at current approaches to automated question answering. The level of presentation is suitable for newcomers to the field as well as for professionals wishing to study this area and/or to build practical QA systems. The book can serve as a "how-to" handbook for IT practitioners and system developers. It can also be used to teach graduate courses in Computer Science, Information Science and related disciplines.
Contributors. Preface. Introduction.- Part 1: Approaches to Question Answering. Some Advanced Features of LCC's Poweranswer. A Statistical Approach for Open Domain Question Answering. Coreference in Q & A.- Part 2: Question Processing. Questions and Intentions. Question Answering as Dialogue with Data. Coping with Alternate Formulations of Questions and Answers.- Part 3: Question Answering as Information Retrieval. Sentence Ranking Using Keywords and Meta-Keywords. Question Answering by Passage Selection. Query Modulation for Web-Based Question Answering.- Part 4: Answer Extraction. Question Answering by Predictive Annotation. Question Answering Supported by Multiple Levels of Information Extraction. How to Select an Answer String?.- Part 5: Evaluating Question Answering Systems. Evaluating Question Answering System Performance. Evaluating Interactive Question Answering. Habitability in Question-Answering Systems.- Part 6: Perspectives on Question Answering. Question Answering: Technology for Intelligence Analysis. Reverse-Engineering Question/Answer Collections from Ordinary Text. New Directions in Question Answering.- Index.
Series: Text, Speech and Language Technology
Number Of Pages: 568
Published: 26th November 2007
Publisher: Springer-Verlag New York Inc.
Country of Publication: US
Dimensions (cm): 23.39 x 15.6
Weight (kg): 0.82