McTear, Michael Conversational AI: dialogue systems, conversational agents, and chatbots - San Rafael, CA., : Morgan & Claypool Publishers, 2021 - xviii, 231p., illus. includes bibliographical references - Synthesis Lectures on Human Language Technologies . ISBN: 9781636390314 - pbk Subjects--Topical Terms: 1. Intelligent personal assistants (Computer software)--Design. 2. Virtual humans (Artificial intelligence)