UBIWARE Nokia Research Center Case Meeting on 7.4.2008

1. UBIWARE Nokia Research Center CaseMeeting on 7.4.2008 Mikko Vapa, research studentP2P Computing Group Department of Mathematical Information Technology http://www.mit.jyu.fi/cheesefactory

2. 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. 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. 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. 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. 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. 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