Trust in mobile social networks
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Trust in mobile social networks

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panel talk for trust in Internet of Things and CPSCom for IEEE CPSCom 2012 conference

panel talk for trust in Internet of Things and CPSCom for IEEE CPSCom 2012 conference

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    Trust in mobile social networks Trust in mobile social networks Presentation Transcript

    • Trust in Mobile SocialNetworksAlvin ChinSenior ResearcherNokia Xpress Internet Services Chinaalvin.chin@nokia.com Nokia Internal Use Only
    • The problem with online social networks2 Nokia Internal Use Only
    • Why should I link with you? Why should I add you? Are you the person who I think you are? Do I trust you?3 Nokia Internal Use Only
    • However, trust is an after thought4 Nokia Internal Use Only
    • Do you trust this guy to be your FBfriend?5 Nokia Internal Use Only
    • So how can we trust people on OSN? Whatothers say6 Nokia Internal Use Only
    • So how can we trust people on OSN? Explicittrust7 Nokia Internal Use Only
    • So how can we trust people on OSN? Implicittrust tAC A B C tAB tBC Modelling trust, Jennifer Goldbeck, 2005 FilmTrust http://trust.mindswap.org/FilmTrust8 Nokia Internal Use Only
    • How do we trust people offline? • By their reputation • By their actions • By what others say about them9 Nokia Internal Use Only
    • Trust offline -> trust online10 Nokia Internal Use Only
    • How can we know this trust offline? Mobile social networking!11 Nokia Internal Use Only
    • Mobile social networking: Making the mobilean integral part of your social network andlifestyle Provide integrated experience by fusing physical and digital social interactions through the mobile distributed content sharing Integrate context and social connections into mobile social networks social networks pervasive computing sensor networks12 Nokia Internal Use Only
    • Recording offline interactionsXu et al, Using Physical Context in a Mobile Social Networking Application for Improving FriendRecommendations, In Proc. of PhoneCom 2011 workshop, 2011. 13 Nokia Internal Use Only
    • Find who this person is and what you have in commonChin et al, Using Proximity and Homophily to Connect Conference Attendees in a Mobile Social Network, In Workshop Proc. of ICDCS, PhoneCom 2012 workshop, 2012. 14 Nokia Internal Use Only
    • Trust based on meeting in the pastChin et al, Using Proximity and Homophily to Connect Conference Attendees in a Mobile Social Network, In Workshop Proc. of ICDCS, PhoneCom 2012 workshop, 2012. 15 Nokia Internal Use Only
    • LeXiang prototype16 Nokia Internal Use Only
    • LeXiang prototype17 Nokia Internal Use Only
    • We trust our friends, and friends gathertogether • Prob. of being friend is inversely proportional to the distance of their self- reported addresses in Facebook and with IP and geographical address (Backstrom 2010) • L. Backstrom, E. Sun, and C. Marlow, "Find me if you can: improving geographical prediction with social and spatial proximity," in ACM WWW, 2010, pp. 61-70. • Physical interactions such as Bluetooth encounter can be an indicator of friendship • Eagle, N. and Pentland, A. Social serendipity: Mobilizing social software. IEEE Pervasive Computing, 4, 2 (2005), 28-34. • Quercia, D. and Capra, L. FriendSensing: recommending friends using mobile phones. In Proc. ACM RecSys 2009, ACM Press (2009), 273-276. • 100 times powerful influence from friends than from strangers (Hui 2009) • Hui, P. Groupthink and Peer Pressure: Social Influence in Online Social Network Groups. ASONAM 2009, 53-59.18 Nokia Internal Use Only
    • Offline Improves Friend RecommendationXu et al. Using Physical Context in a Mobile Social Networking Application for Improving FriendRecommendations, 1st International Workshop on Sensing, Networking and Computing onSmartphones, In Proc. of CPSCom 2011, 2011 19 Nokia Internal Use Only
    • Issues of trust in mobile social networks • Accuracy of trust? • Measurement of trust (subjective rather than objective) • Inferring trust from offline and online behaviour • Transfer of trust from offline to online and vice versa • Transitivity of trust, ie, if A trusts B and B trusts C, then should A trust C? • Building trust in a social graph20 Nokia Internal Use Only
    • Alvin ChinXpress Internet Services ChinaNokia, Beijingalvin.chin@nokia.comhttp://www.alvinychin.comFacebook: Alvin Chin (alvin.chin@utoronto.ca)LinkedIn: alvin.chin@nokia.comTwitter: gadgetman4uSina Weibo: http://weibo.com/2106762242 (gadgetman)Foursquare: Alvin Chin (alvin.chin@nokia.com)Google+: ubiquitousdude@gmail.com Nokia Internal Use Only