The design of expressive intelligent agent for human-computer interaction

Now a day, people are getting intensely attached to communicate with others in virtual environments using various virtual agents due to their popularity. Most of these environments used emoticon for displaying emotion of interacting partners to each other. However, emoticon based systems often makes the interaction lifeless and monotonous. This paper focus on developing a human-like virtual agent that produces facial expressions with motions (such as head movement and eye blinks) during human-computer interaction scenarios through analyzing the input text messages of users. This agent is capable to display six facial expressions namely, happy, sad, angry, disgust, fear, and surprise based on the chatting partner´s input text that makes the interaction enjoyable. Experimental evaluation reveals that the proposed agent can display emotive expressions correctly 92% of the times from the users´ text input and it creates a better feeling of making interaction to the partners than the emoticon bases systems.