Workshop on Online Social Networks Microsoft Research Cambridge December 7, 2007 Thank you for participating! Why this workshop? • Goals: – Discuss interesting future research directions – Identify challenges and implications for network and distributed systems design • Format: – Highly interactive encouraging discussions – More questions than answers! Real life… ...and the networking community Multicast and Anycast, Control mechanisms, WWW, Performance analysis, Routing, TCP, Tracing and Measurement, Header Processing Network geometry and design, Inference of network properties, Multihoming and overlays, Wireless, Secure networks, Troubleshooting, Congestion control, Router design, DNS Enterprise networks, Network Applications, System design, Incentives, Routing, Architectures, Reliability, Attack protection, Resource allocation, Wireless, Network characteristics Research on social networks • Inter-disciplinary – – – – Sociology Economics Information retrieval Data mining • Venues – ACM: KDD, SIGIR, SiGMOD, SIGCHI, EC – WWW – ... • Why not addressed by the networking community? Social networking services Social networks and “networking” • Social networks is “networking” • Connected components, interacting nodes, etc. • Related topics have been studied under different settings... • P2P networks • Information dissemination • Epidemics • Social networks: • Rely on human intensions... Social networking services Source: Bebo, Social Media – ‘getting your message across’ Social networking services • Social communities – Bebo, MySpace, Facebook, etc. • Content sharing – YouTube, Flickr, MSN Soapbox, etc. • Corporate – LinkedIn, Plaxo, etc. • Portals – MSN, Yahoo 360, etc. • Recommendation engines – Last.fm, StumbleUpon, Digg, Me.dium, etc. • Bookmarking/Tagging – Del.icio.us , CiteUlike, Furl, etc. • Discussion groups – Blogs, forums, chat, messaging, Live QnA, etc. • Mobile social networks – Vipera, Nokia “MOSH”, etc. • Virtual worlds – Second life What do social networks enable? Leveraging the “community” in traditional applications • • • • • Content/information sharing Search Information management Recommendations Advertisements Research topics of interest • Identification of communities and their evolution in time • Measurement and analysis of online communities • Social media analysis: blogs and friendship networks • Recommendation / collaborative filtering systems • Rating, review, reputation, and trust systems • Expertise / interest tracking • Information sharing and forwarding • Search strategies in social networks • Viral marketing strategies • Implications on network and distributed systems design • System design for social networks • Mobile social networks • Privacy and anonymity Projects on information search, filtering, sharing, services Albatross • Information services leveraging mobile device contacts TagBooster • Ranking and suggesting popular items Systems and Networking group http://research.microsoft.com/camsys/ ALBATROSS Opportunistic Communication Services Information services leveraging opportunistic communications between human-carried mobile devices. Ad-hoc/distributed community-based services with limited or no infrastructure Related projects: Delay Tolerant Networking Haggle 14 TagBooster System for ranking and suggesting popular items user selection Item suggestions apollo nasa space flickr photos nasa pictures apollo moon Goals: • Learn true popularity ranking (unbiased by suggestions) • Suggest true popular items • Identify true popular items quickly App scenarios: • Social tagging (videos, photos, bookmarks) • Search query popularity Workshop Program Workshop Program Workshop Program Workshop on Online Social Networks at SIGCOMM 2008 • CFP out soon! • 6-page papers • Paper deadline – Mid March 2008 Why this workshop? • Goals: – Discuss interesting future research directions – Identify challenges and implications for network and distributed systems design • Format: – Highly interactive encouraging discussions – More questions than answers!