A Review & Comparative Analysis on Various Chatbots Design

Human-Computer Expression is gaining momentum as a computer-interaction technique. In speech based search engines and assistants such as Siri, Google Chrome and Cortana, there has been a recent upsurge. Chatbots replace some of the tasks human workers have traditionally filled, such as remote customer service agents and educators. Effectiveness of chatbots continue to increase right from initial stage of rule-based chatbots. The purpose of this paper is to help researchers to find the research gap for future upgradation of chatbots. This paper presents a survey on the techniques used to design Chatbots and a comparison is made between different design techniques from nine carefully selected papers according to the main methods adopted.