1. Mobile collection of location-based multimedia School of Computing University of Eastern Finland Prof. Pasi Fränti Research presentation 27.5.2010

2. Mobile trends: internet & location  Nokia: 50% of its multimedia phones will have GPS by 2010-12.  Gartner: 75% has GPS by the end of 2011.

3. MOPSI data collection and service Data collection by multimedia phone Data sharing via www/wap

4. wwwwww Data collection in MOPSI system GPS Data collector: Other users: MOPSI webpage Service directory N 62.63 E 29.86 User collection Last skiing of winter User: Pasi

5. Motives for sharing data  Pragmatic: -Need for information -Share information to help others  Social: -Publish creative results -Getting feedback -Social interaction

6. 1. Content 2. 2. Time 3. 3. Location 4. 4. Network Four aspects of relevance Last skiing of winter Date: 4.4.2010 Location: N 62.63 E 29.86 Arppentie 5, Joensuu Content of picture Keywords or informal description snow skis User: Pasi

7. 1. Content 2. Time 3. Location 4. Network Four aspects of relevance Last skiing of winter Date: 4.4.2010 Location: N 62.63 E 29.86 Arppentie 5, Joensuu Date Not expected in July User: Pasi

8. 1. Content 2. Time 3. Location 4. Network Four aspects of relevance Last skiing of winter Date: 4.4.2010 Location: N 62.63 E 29.86 Arppentie 5, Joensuu Exact coordinates Address for usability User: Pasi

9. 1. Content 2. Time 3. Location 4. 4. Network Four aspects of relevance User: Pasi Relevance of data is defined by social or other network

10. Four aspects of relevance Last skiing of winter Date: 4.4.2010 Location: N 62.63 E 29.86 Arppentie 5, Joensuu User: Pasi   Keywords: skis, forest, snow   Informal description   Relevance defined by the network of the user   Date and time (not expected in July) 1. Content 2. Time 3. Location 4. Social network   Exact coordinates   Address for usability

11. Using location in MOPSI  Browse data collection on a map  Show location of other users  Track the movements of the user  Filter results from the service directory

12. Access to photo collection Map view

13. Access to photo collection Timeline view

14. Mobile interface of MOPSI service   Exact coordinate   Nearest address   GPS status   Query word   Suggested keywords from previous searches 1. Location 2. Search

15. MOPSI search directory Database results Search engine results Routing to the target

16. Photos by categories in MOPSI

17. Content description Singapore flier (Going to) sauna (no words needed)

18. Description of pictures of people   People by their name or role: - -Runner - -Floorball player   Related to place: - -Untung / STMIK - -Young Andrei - -My son Amir   Among the pictures of people, 31% (21/68) has some kind of identity.

19. Description of events   Content or location not enough.   Description adds to the relevance.   Examples: - -Work: ecse, abi, mopsi meeting, ubiikki - -Running competition: Åland half marathon - -Actions attached with feelings: quality time in skiing elevator.

20. Location of travel photos   Not easily recognized from content.   Can be concluded from GPS data.   Descriptions are used anyway: - -Locations as such: Clarke Quay, Geger beach, Suceva, Tahkovuori and Aholansaari (location - -With additional details: Petronas Towers, Heureka, Singapore flier, Olavin linna. - -With additional feelings: Musta Pekka mutkan takana (Black Pete behind the curve)

21. Comparison with Picasa and Flickr

22. Photo distribution in MOPSI

23. Technical problems Asynchronous problem (1) Asynchronous problem (2) Low illumination Interrupted transmission

24. Thank you Time for questions!