1. UNIVERSITY OF JYVÄSKYLÄ UBIWARE Nokia Research Center Case Meeting on 7.4.2008 Mikko Vapa, research student P2P Computing Group Department of Mathematical Information Technology http://www.mit.jyu.fi/cheesefactory

2. UNIVERSITY OF JYVÄSKYLÄ Nokia Research Center Case Nokia Research Center case: –develops a prototype for Mobile Social P2P Networks –the implementation platform is Personal-Apache-MySQL-PHP (PAMP) webserver stack running on Symbian phones With the prototype it is possible to demonstrate real-time searching of relevant new content from other mobile phones Expected outcomes consists of: –mobile social P2P network prototype –algorithms for topology management and resource discovery in mobile social P2P network –live demonstration and live testing of Mobile Social P2P Networks with Peer-to-Peer Studio monitoring tool –user behavior analysis of social network search data –several publications on algorithms and the prototype

3. UNIVERSITY OF JYVÄSKYLÄ Problem 1. MSP2P Prototype Contents of a mobile device needs to be searchable depending on the access rights of the person issuing the search With a single click the user should be able to get new popular and socially relevant content Additionally the user might type keywords and other criterias to tailor the search Consists of mobile search engine and social network search components Implementation on Personal Apache MySQL PHP stack Responsible researchers Niko Kotilainen and Matthieu Weber

4. UNIVERSITY OF JYVÄSKYLÄ Problem 2. Topology Management Social network evolves when mobile users add and remove social network links from their addressbook Search algorithm should have access to latest social network neighborhood topology information Topology management algorithm needs to be developed to have an up-to-date view on the social network As benchmark algorithms Pedro Tiago’s naive topology querying algorithm can be used and also routing indices (Crespo and Garcia-Molina, 2002) Implementation and evaluation on P2PRealm simulator and further implementation to MSP2P prototype Responsible researcher Annemari Auvinen

5. UNIVERSITY OF JYVÄSKYLÄ Problem 3. Resource Discovery Search space consists of thousands of mobile users Resource discovery algorithm needs to be developed to find new and socially relevant popular data from the mobile users As a benchmark algorithm Expanding Ring (Lv et al. 2002) can be used Implementation and evaluation on P2PRealm simulator and further implementation to MSP2P prototype Responsible researchers Yevgeniy Ivanchenko and Mikko Vapa

6. UNIVERSITY OF JYVÄSKYLÄ Problem 4. Result Ranking The list of results obtained from mobile devices can be large Ranking mechanism needs to be developed to sort the relevant results on top of the list As a benchmark algorithm Pedro Tiago’s naive result interleaving and Page Rank (Brin and Page 1998) could be used Implementation and evaluation on P2PRealm simulator and further implementation to MSP2P prototype Responsible researcher Yevgeniy Ivanchenko

7. UNIVERSITY OF JYVÄSKYLÄ Additional Interests Social network user behavior can be monitored and collected to centralized P2PStudio server –Data analysis methods could be used to find out which attributes characterize the most clicked information –Responsible researcher Sami Äyrämö NeuroSearch was developed for P2P resource discovery –Could it be adapted to social network search also –Responsible researcher Ferrante Neri Mobile Social P2P Network prototype will be developed on PAMP –Can UBIWARE run easily on Symbian phones and provide a platform for Mobile Social P2P Network prototype –Responsible researcher Artem Katasonov