An interactive question answering (QA) system is defined as a QA system that supports a series of exchanges between users and the system to clarify user intent and to enable follow-ups. In the domains of applications related to technical support and training, there is an urgent need for an interactive QA system that supports complicated questions in a coherent manner. This paper presents the approach for designing and implementing chatbot-based interactive What- and How-QA systems based on an integrated ontology-based knowledge base.
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