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Connecting Social Network

Users through Mobile Interfaces

Abiola Famurewa & Idowu Samuel

Davide De Chiara, Luca Paolino, Marco Romano, Monica Sebillo,

Genoveffa Tortora, and Giuliana Vitiello

DMI, Universit di Salerno, Italy

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` Backgroun

` Intro uction

` Relate work

` Multi o al Interaction Para ig

` Basic interaction tasks

` grouping etho s

` Scenario

` software fra ework/architecture

` conclusion

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`

Increase Mo ern obile evices capability via technologies likeca era, GPS, 3D graphics an per anent Internet connection.

` Integration of these technologies provi es ability to run co plex apps

ug ente Reality Social Network.

` GO L : n Integrate solution that Supports obile users aily activities,

by eveloping a vance solutions which takes principle of HCI an usability

into account LINK2U.

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` LINK2U co bines potential of obile evices with aug ente reality

features that allows SNU [Social Network Users] to invoke functions such

as:

Tra itional functions (e.g. essaging)

Calculation of route on a ap

I entification of other SNUs

Point of interest through the support of aug ente reality.

` Two recently evelope applications which provi es intuitive an light

navigation syste s for obile evices

Google Latitu e an Enkin {Related works}

` Latitu e: It isplays the position of SNUs on a ap. It also allows users to

invoke calculation of the fastest route to reach other users (Google latitu e

is freely istribute on the latest version of Google aps for obile

evices).

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` Enkin: n aug ente reality app which offers a new concept of pe estrian

navigation [han hel navigation concept]. Enkin isplays aps on screensuperi pose to vi eo i age, it affor s users to see the POI represente

in 3D.

` LINK2U co bines the benefits fro Google Latitu e an Enkin

approaches.

` It is base on geo-localization technique which integrates GPS an Wi- i

Positioning Syste (WPS).

` LINK2U exploit o ern evices that co bines an integrate ca era for

i age-vi eo capture, a GPS evice to etect position, a co pass an a

otion sensor to etect users point of view.

` Prototype is being teste an it allows SNUs to eter ine in ivi ual

in oor/out oor positions an calculate path between POI.

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` Link2U uses the para ig co on with social network [e.g. contact lists].

` Provi es two visualizing o es:

Map Mo e: Classic 2D ap view, SNUs an POIs are rawn on the ap.

Live Mo e: exploits aug ente reality to i prove users sensory perception

about SNUs an POIs locate insi e the ca era visual fiel .

` Both SNUs an POIs insi e the visual fiel are visualize in 3D

environ ent an are superi pose on i age capture by the ca era

[Live Mo e].

` Users can switch between the ap o e an live o e by laying own

the evice or by raising it into vertical position.

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Context-Related Visualization Route Calculation

1) Establishing the Goal

User is willing to receive visual infor ation

about physical/virtual env.

The user wants to reach one of the i entifie

POIs or SNUs.

2) Executing the action

User lays own own evice Map View,

raises evice into vertical position an turns to

explore surroun ing Live Mo e.

Lays own evice an select target on ap,

Invokes the route calculation function, raises

evice to vertical position.

3) Perceiving the syste state

Map captures location of POIs in 2D view,

Live observes POIs/SNUs in 3D aug ente

reality space.

Map-route rawn as 2D poly-line along with

label on target icon, Live set of waypoints

with ra ar view isplaying closest waypoint.

4) Evaluation in respect to goals an intensions

Users evaluate whether the localization, i entification an visualize route of SNUs an POIs

co ing fro LINK2U allows hi /her to effectively interact with the surroun ing environ ent.

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` Grouping etaphors is use to avoi the confusion ue to SNUs crush on

the screen.

` Two grouping etho s are use to avoi sensorial overloa ue to

visualization of ultiple ele ents [ ra y an Cartography]

` ra y Visualization Technique:

` Basic i ea is to ivi e the worl aroun the user into sections.` The green triangle shows ca era visual fiel .

` Color intensity of each portion is proportional to the nu ber of SNUs in

sector.

(a) Sector ivision of the

region aroun the user

(b) an exa ple of the

visual representation

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` Basic Cartography:

` Main i ea Is to ap eeting places on basic cartography such as libraryclassroo s where SNUs are use to gather.

` Such places can be etecte as rea of SNU ggregation - ( S )

through an icon.

` When the SNU nu ber/ S surface ratio is bigger than a threshol value,

the icon evokes the presence of a SNUs as shown by the associate label.

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` (a) Map o e visualization of users position. (b) Live o e representation of users position

` Live o e: ra y an aggregates by S visualization

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` The Syste Network:

` The architecture of the syste is client-server base , server is responsible

for coor inating an up ating the positions of various clients.

` The localization of a client is obtaine through GPS stan ar an

triangulation of the Wi- i hotspot signals.

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` The client:

` The client application has been evelope on a G1 HTC DRE M that

incorporates the nee e har ware along with n roi platfor .

` n roi provi es applications with access to the location services

supporte by the evice through the classes in the android.location

package.

` The access of a ap is provi e by Map View that isplays a ap

with ata obtaine fro the Google Maps service.

` Typically obile evices have so e co putational li its that can slow

own the application perfor ances. To overco e such li its weexploit so e Web Services.

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` The goal of the research we are carrying out is eant to realize

a vance solutions to support users in their aily activities, ranging

fro usual services to extraor inary facilities, fro obility to

entertain ent.

` There is a future plan to i prove the prototype in or er to both

auto ate its behavior in reply to so e sti uli, such as users

obility an screen shape, an better satisfy users require ents on

the basis of fee back obtaine through a usability stu y eant to

i prove the application e be ing Link2U.