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UID:20251216T034958EST-7314zCH8lp@132.216.98.100
DTSTAMP:20251216T084958Z
DESCRIPTION:Join us for a ³ÉÈËVRÊÓƵ School of Information Studies (SIS) Semina
 r Series talk with Visiting Professor Dr. William Cheung on social interac
 tion mechanisms and diffusion networks in online social networks.\n\nABSTR
 ACT\n\nThe use of online social media for communication is now an irrevers
 ible trend. High volume of related activities captured via this new media 
 has enabled human behaviors to be studied using the data-driven approach. 
 Very often\, those recorded interaction activities form large-scale comple
 x networks. Recovering behavioral regularities from the networks is challe
 nging as social relationship among people is often complex and hidden.\n\n
 This talk consists of two parts. For the first part\, I will present how w
 e are inspired by the study of network motifs (in complex networks) and th
 e theories of human communication (in social science)\, and propose the St
 ochastic Network Motif modeling approach to represent and discover social 
 interaction mechanisms from human interactions observed in social networks
 . Other than characterizing different networks using the discovered motifs
 \, we have also derived a motif-based link prediction algorithm which can 
 increase the accuracy of followee recommendation based on a Weibo dataset 
 by 5-10%. For the second part\, I will present how we are inspired by noti
 ons like structure hole and social role in social network research and pro
 pose variants of independent cascade models for better modeling of informa
 tion diffusion in social networks. One of our recent works that incorporat
 es stochastic network motifs into diffusion network modeling (to be presen
 ted at the upcoming IJCAI’16) will also be covered.\n\nBIO\n\nDr. William 
 K. Cheung is currently the Associate Head and an Associate Professor in th
 e Department of Computer Science\, Hong Kong Baptist University. He receiv
 ed BSc and MPhil degrees in electronic engineering from The Chinese Univer
 sity of Hong Kong and a PhD degree in computer science from The Hong Kong 
 University of Science and Technology. He has served as the co-chair and/or
  program committee member of a number of international conferences/worksho
 ps\, as well as a guest editor of journals in areas including artificial i
 ntelligence\, Web intelligence\, data mining\, Web services\, e-commerce t
 echnologies\, and health informatics. Also\, he is currently the Managing 
 Editor of the IEEE Intelligent Informatics Bulletin. His research interest
 s include artificial intelligence and machine learning\, as well as their 
 applications to collaborative filtering\, social network analysis\, health
  data analytics\, web/text/network data mining\, distributed and privacy-p
 reserving data mining\, among others. Website: http://www.comp.hkbu.edu.hk
 /~william\n
DTSTART:20160414T163000Z
DTEND:20160414T180000Z
LOCATION:CA\, School of Information Studies\, 3661 Peel\, Rm. 106\, Montrea
 l
SUMMARY:Information Studies Seminar Series: 'Discovering Social Interaction
  Mechanisms and Diffusion Networks in Online Social Networks.' Guest speak
 er Dr. W. Cheung
URL:/sis/seminar-series-cheung-social-interaction-mech
 anisms
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