Intelligent Interactive Systems in Knowledge-Based Environments: An Introduction.- Requirements Analysis and Design of an Affective Bi-Modal Intelligent Tutoring System: The Case of Keyboard and Microphone.- Estimating the Development Cost for Intelligent Systems.- In Search of Narrative Interactive Learning Environments.- Knowledge Acquisition for Configurable Products and Services.- Interaction Modalities in Mobile Contexts.- Automated Processing and Classification of Face Images for Human-Computer Interaction Applications.- On Developing and Communicating User Models for Distance Learning Based on Assignment and Exam Data.- Group Adaptation and Group Modelling.- PNS: A Personalized News Aggregator on the Web.

The primary aim of this up-to-date research book is to report a sample of the most recent advances in the field of intelligent interactive systems in knowledge-based environments. It contains recent research and case studies of intelligent interactive systems. This book will prove useful to researchers, professors, research students and practitioners as it reports novel research work on innovative topics in the area of intelligent interactive systems.