This book constitutes the thoroughly refereed post-conferenceproceedings of the COST Action
2102 and euCognition supported international school on Multimodal Signals: 'Cognitive and
Algorithmic Issues' held in Vietri sul Mare Italy in April 2008. The 34 revised full papers
presented were carefully reviewed and selected from participants' contributions and invited
lectures given at the workshop. The volume is organized in two parts the first on Interactive
and Unsupervised Multimodal Systems contains 14 papers. The papers deal with the theoretical
and computational issue of defining algorithms programming languages and determinist models
to recognizeand synthesize multimodal signals. These are facial and vocalexpressions of
emotions tones of voice gestures eye contact spatial arrangements patterns of touch
expressive movements writing patterns and cultural differences in anticipation of the
implementation of intelligent avatars and interactive dialogue systems that could be exploited
to improve user access to future telecommunication services. The second part of the volume on
Verbal and Nonverbal Communication Signals presents 20 original studies devoted to the
modeling of timing synchronisation between speech production gestures facial and head
movements in human communicative expressions and on their mutual contribution for an effective
communication.
