Mobile collection of Mobile collection of location-based multimedialocation-based multimedia

School of ComputingSchool of ComputingUniversity of Eastern FinlandUniversity of Eastern Finland

Prof. Prof. Pasi FräntiPasi Fränti

Research presentationResearch presentation27.5.201027.5.2010

Mobile trends: internet & locationMobile trends: internet & location

NokiaNokia: : 50%50% of its of its multimedia multimedia phones will phones will have GPS by have GPS by 2010-12.2010-12.

GartneGartner: r: 75%75% has GPS has GPS by the end of by the end of 2011.2011.

MOPSI data collection and serviceMOPSI data collection and service

Data collection by Data collection by multimedia phonemultimedia phone

Data sharing Data sharing via www/wapvia www/wap

wwwwwwwwwwww

Data collection in MOPSI systemData 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

Motives for sharing dataMotives for sharing data

Pragmatic:Pragmatic:- Need for information Need for information - Share information to help othersShare information to help others

Social:Social:- Publish creative resultsPublish creative results- Getting feedbackGetting feedback- Social interactionSocial interaction

1.1. ContentContent2. Time

3. Location

4. Network

Four aspects of relevanceFour aspects of relevance

Last skiing of winterDate: 4.4.2010Location: N 62.63 E 29.86Arppentie 5, Joensuu

Content of picture

Keywords orinformal description

snow

skis

User: Pasi

1.1. ContentContent

2.2. TimeTime3.3. LocationLocation

4.4. NetworkNetwork

Four aspects of relevanceFour aspects of relevance

Last skiing of winterDate: 4.4.2010Location: N 62.63 E 29.86Arppentie 5, Joensuu

Date

Not expected in

July

User: Pasi

1.1. ContentContent

2.2. TimeTime

3.3. LocationLocation4.4. NetworkNetwork

Four aspects of relevanceFour aspects of relevance

Last skiing of winterDate: 4.4.2010Location: N 62.63 E 29.86Arppentie 5, Joensuu

Exact coordinates

Address forusability

User: Pasi

1.1. ContentContent

2.2. TimeTime

3.3. LocationLocation

4. Network

Four aspects of relevanceFour aspects of relevance

User: Pasi

Relevance of data is defined by social or other network

Four aspects of relevanceFour aspects of relevance

Last skiing of winterDate: 4.4.2010Location: N 62.63 E 29.86Arppentie 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

Using location in MOPSIUsing location in MOPSI

Browse data collection on a mapBrowse data collection on a map Show location of other usersShow location of other users Track the movements of the userTrack the movements of the user Filter results from the service directoryFilter results from the service directory

Access to photo collectionAccess to photo collectionMap viewMap view

Access to photo collectionAccess to photo collectionTimeline viewTimeline view

Mobile interface of MOPSI serviceMobile interface of MOPSI service

Exact coordinate Nearest address GPS status

Query word Suggested keywords

from previous searches

1. Location

2. Search

MOPSI search directoryMOPSI search directory

Database Database resultsresults

Search engineSearch engineresultsresults

Routing to Routing to the targetthe target

Content: Description:

Urban 121 People 68 Nature 54 Events 13 Documents 13 Animals 11 Others 25

Office & Computers 196 Other test photos 153 Failures 155

Places 36 Events and action 24 People 21 Objects 20 Architecture and nature 11 Animals 5

Garbage 228 None 464

Photos by categories in MOPSIPhotos by categories in MOPSI

Content descriptionContent descriptionSingapore flier (Going to) sauna

(no words needed) (no words needed)

Description of pictures of peopleDescription 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.

Description of eventsDescription 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.

Location of travel photosLocation 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)

MOPSI Description: Picasa Flickr All Real

Places --- 28% 10% 31% Events and action 31% 17% 7% 21% People 6% 7% 6% 18% Objects --- 5% 6% 17% Architecture and nature 25% 21% 3% 9% Animals --- 3% 1% 4% Others 20% 16% --- 0% Garbage 19% 2% 66% ---

Comparison with Comparison with PicasaPicasa and and FlickrFlickr

Photo distribution in MOPSIPhoto distribution in MOPSI

Technical problemsTechnical problemsAsynchronous problem (1) Asynchronous problem (2)

Low illumination Interrupted transmission

Thank youThank you

Time for Time for questions!questions!