A literature review on question answering techniques, paradigms and systems

Background: Question Answering (QA) systems enable users to retrieve exact answers for questions posed in natural language. Objective: This study aims at identifying QA techniques, tools and systems, as well as the metrics and indicators used to measure these approaches for QA systems and also to de...

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Bibliographic Details
Main Authors: Marco Antonio Calijorne Soares, Fernando Silva Parreiras
Format: Article
Language:English
Published: Elsevier 2020-07-01
Series:Journal of King Saud University: Computer and Information Sciences
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S131915781830082X