1. -Honorary Chairs President Jow-Lay Huang National University of Kaohsiung, Taiwan Prof. Jason Yi-Bing Lin Ministry of Science and Technology, Taiwan -Steering Committee Chairs Prof. Shyue-Liang Wang National University of Kaohsiung, Taiwan Prof. Justin Zhan North Carolina A&T State University -Steering Committees Ajith Abraham, Machine Intelligence Research Labs, USA Pei-Chann Chang, Yuan Ze University, Taiwan Han-Chieh Chao, National Ilan University, Taiwan Arbee Liang-Bi Chen, National Chengchi University, Taiwan Ming-Syan Chen, National Taiwan University, Taiwan Fazel Famili, National Research Council (NRC) of Canada, Canada Kuo-Chin Fan, National Central University, Taiwan Ismail Khalil, Johannes Kepler University Linz, Austria Tsau-Young Lin, San Jose State University, USA Ngoc-Thanh Nguyen, Wroclaw University of Technology, Poland Jeng-Shyang Pan, National Kaohsiung University of Applied Sciences, Taiwan Pavlos Protopapas, Harvard University, USA Yu-Hui Tao, National University of Kaohsiung, Taiwan -General Chairs Prof. Tzung-Pei Hong National University of Kaohsiung, Taiwan Prof. Xu Jeffrey Yu, The Chinese University of Hong Kong, Hong Kong Prof. Shusaku Tsumoto, Shimane University, Japan -Program Chairs Prof. I-Hsien Ting National University of Kaohsiung, Taiwan Prof. Shou-De Lin National Taiwan University, Taiwan Prof. Wen-Yang Lin National University of Kaohsiung, Taiwan Prof. Raymond Wong Hong Kong University of Science and Technology, Hong Kong -Workshop & Special Session Chair Prof. Chung-Hong Lee National Kaohsiung University of Applied Sciences, Taiwan -Organizing & Financial Chair Prof. Tang-Kai Yin National University of Kaohsiung, Taiwan -Publication Chair Prof. Chien-Feng Huang National University of Kaohsiung, Taiwan -Publicity Chairs Prof. Feida Zhu Singapore Management University, Singapore Prof. Ying-Feng Kuo National University of Kaohsiung, Taiwan -Local Organizing Chairs Prof. Chin-Fu Kuo National University of Kaohsiung, Taiwan Prof. Chia-Yen Chen National University of Kaohsiung, Taiwan -Web Chairs Prof. Chun-Hsin Wu National University of Kaohsiung, Taiwan Min-Thai Wu National University of Kaohsiung, Taiwan Social Informatics can be broadly defined as the study of social aspects of computerization, including the role of information and communication technology (ICT) in social and organizational change, the use of ICT in social contexts, and the way that the social organization of ICT is influenced by social forces and social practices. Some Social Informatics scholars use computerization and big data to understand, predict and explain complex social technical phenomena. Some use social science approaches to study the complex relationships between people, ICT and work and play in a wide range of social and organizational settings. Social Informatics is an interdisciplinary research domain that includes social studies, human dynamics, computing science, and industrial engineering technologies that consider social context. It is one of the emerging themes across a number of information and communication technology fields and has attracted significant interest from not only researchers in computing, information science, and social sciences, but also software and online game vendors, web entrepreneurs, political analysts, and digital government practitioners. The ASE International Conferences on Social Informatics have become a key forum for researchers and industry practitioners to exchange information regarding innovations and advances in the state of art and practice of social informatics. The conferences were held in Washington D.C. in 2012, in Orlando, Florida in 2013, and at Harvard University, Cambridge, MA in 2014. This year is the first time for the conference to be held outside USA. It will be hosted by National University of Kaohsiung, Taiwan from Oct. 7th to 9th, 2015, and held jointly with the Fifth ASE International Conference on Big Data. We very sincerely welcome all of you, the outstanding researchers in social informatics, to gather together in the ocean city of southern Taiwan. Key Dates Workshop & Special Session proposal submission: Jun 7, 2015 Paper Submission: Jul 7, 2015 Paper Acceptance: Aug 21, 2015 Final Paper Due: Sep 7, 2015 Author Registration: Sep 7, 2015 Conference Days: Oct 7-9, 2015 Contact Min-Thai Wu: jimmywmt@nuk.edu.tw Topics of Interest Topics of particular interest include, but are not limited to: Computational Social Science Human Dynamics Social Signal Processing Social Behavior Modeling Social Informatics Theories Social Intelligence and Social Cognition Social Media Analytics and Social Media Intelligence Human-Computer Interaction and Interface Design Emotional Intelligence, Cultural Dynamics, Opinion Representation, Influence Process Data Mining and Machine Learning in Social Contexts Trust, Privacy, Risk and Security in Social Contexts Technically supported by IEEE SMC TC on Granular Computing  All accepted papers will be published in ACM International Conference Proceeding Series (ICPS), which is EI indexed.  Submission system https://easychair.org/conferences/?conf=socialinformatics20150  For more information, visit http://socialinformatics2015.scienceengineeringacademy.org/  Co-located event ASE BigData 2015