social network extraction and analysis based on multimodal dyadic interaction社交网络提取和分析基于多通道二元交互.pdf

Sensors 2012, 12, 1702-1719; doi:10.3390/s120201702 OPEN ACCESS sensors ISSN 1424-8220 /journal/sensors Article Social Network Extraction and Analysis Based on Multimodal Dyadic Interaction 1,2,⋆ ´ 1,3 ` 1,2 1,2 1 Sergio Escalera , Xavier Baro , Jordi Vitria , Petia Radeva and Bogdan Raducanu 1 ´ Centre de Visio per Computador, Campus UAB, Edifici O, Bellaterra, 08193 Barcelona, Spain; E-Mails: xbaro@ (X.B.); jordi@cvc.uab.es (J.V.); petia@cvc.uab.es (P.R.); bogdan@cvc.uab.es (B.R.) 2 ` ` Department Matematica Aplicada i Analisi, Universitat de Barcelona, Gran Via 585, 08007 Barcelona, Spain 3 ` ` ´ Estudis d’Informatica, Multimedia i Telecomunicacio, Universitat Oberta de Catalunya, Rambla del Poblenou 156, 08018 Barcelona, Spain ⋆ Author to whom correspondence should be addressed; E-Mail: sergio@maia.ub.es; Tel.: +34-93-581-18-28; Fax: +34-93-581-16-70. Received: 24 December 2011; in revised form: 21 January 2012 / Accepted: 22 January 2012 / Published: 7 February 2012 Abstract: Social interactions are a very important component in people’s lives. Social network analysis has become a common technique used to model and quantify the properties of social interactions. In this paper, we propose an integrated framework to explore the characteristics of a social net