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APPROCHES FOR QUESTION ANSWERING SYSTEMS

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Author(s): VANITHA GUDA | SURESH KUMAR SANAMPUDI, | I.LAKSHMI MANIKYAMBA

Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462

Volume: 3;
Issue: 2;
Start page: 990;
Date: 2011;
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Keywords: Question Answering System | Temporal Information | Questioners.

ABSTRACT
Question Answering (QA) system is a man machine communication device. The basic idea of QA systems in Natural Language Processing (NLP) is to provide correct responses to the questions in a human like manner giving short and accurate answers. This paper presents a survey of various types of QA systems. These QA systems are classified as WEBBASED QA system, Information Retrieval or Information Extraction(IR/IE)BASED QA system, RESTRICTED DOMAIN QA (RDQA) system and RULE BASED QA system. The paper further investigates a comparative study of these models for different type of questioners which led to a breakthrough for new directions of research in this area.
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