Context Modeling for Device- and Location-Aware Mobile Web ...€¦ · ÎDeveloping personalized...
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Context Modeling for Device- and Location-Aware Mobile Web Applications Michael Hinz, Zoltán Fiala Dresden University of Technology (Germany) Heinz-Nixdorf Endowed Chair for Multimedia Technology http://www-mmt.inf.tu-dresden.de/Projekte/AMACONT/ PERVASIVE 2005, Workshop PERMID 2005, May 11th 2005
Transcript of Context Modeling for Device- and Location-Aware Mobile Web ...€¦ · ÎDeveloping personalized...
Context Modeling forDevice- and Location-AwareMobile Web Applications
Michael Hinz, Zoltán FialaDresden University of Technology (Germany)Heinz-Nixdorf Endowed Chair for Multimedia Technologyhttp://www-mmt.inf.tu-dresden.de/Projekte/AMACONT/
PERVASIVE 2005, Workshop PERMID 2005, May 11th 2005
© 2005 Michael Hinz , TU Dresden2
Structure
Motivation / IntroductionContext modeling components
Device ModelingLocation ModelingUsers Preference Modeling
Integration into a context aware system architectureConclusion and Future Work
© 2005 Michael Hinz , TU Dresden3
Motivation / IntroductionTrends
Personalization of informationVariety of mobile devices
Developing personalized applications for the ubiquitous WebProviding personalized user interfaces addressing heterogeneous capabilities of device classesExisting approaches restricted to
one adaptation scenario (device independence, personalization, LBS)only the modeling of context information, not on the usage
Requirements: gathering, processing and sophisticated representing of context information, so that it can be used for adapting Web applications
© 2005 Michael Hinz , TU Dresden4
Overview
Context Model
IdentificationProf. DeviceProfile EnvironmentProf.PreferenceProfile
Context Data
User Properties Usage Data Device Properties Location
Adaptation Effect
Personalization Device Independence Location Awareness
Context Modeling
Adaptation
© 2005 Michael Hinz , TU Dresden5
Device Modeling
Context Model
Acquiring Device Capabilities
Device Profile
DeviceModeling
DELI framework
updated device capabilities (UAProf)
UserAgent
Update Device Context
client side code
Client/Server Communication
device profile request
device profile response
Device Repository
UAProf enabled device
© 2005 Michael Hinz , TU Dresden6
Location Modeling
Context Model
Acquire Position or Mobile Identification
Environment Profile
Location Modeling
Location Requester
updated client location (MLP)
Location Server(locating / authentication /
authorization)
Mobile Identification(MSID …)
location response (MLP)
Location Context Update
Location Requester
Client/Server Communication
location request (MLP)
location response (MLP)
location request (MLP)mobile
identification
location response (MLP)
extended location response
Landmark Server
JSR 179
© 2005 Michael Hinz , TU Dresden7
Users Preference Modeling
Preference Rules[ (default noInterest) ]
User EventsPicture maximized [ picture, action interest ]Text enlarged [ text, action interest ]
Preference Rules[ ((medium ≠ picture) Λ (medium ≠ text) noInterest),((category ≠ action) noInterest),(default interest) ]
© 2005 Michael Hinz , TU Dresden8
Request
Pipeline-based Document Generation
Transformadaptation to context model properties
RenderingXHTML.fullXHTML.basicXHTML.MPWML
Transformadaptation according to user preferences
</alay:LayoutManager> </amet:LayoutProperties> </aco:MetaInformation> <aco:Variants> <aco:Variant name="variant1" la <aco:MetaInformation> <amet:LayoutPropertie <alay:LayoutMana <alay:Overlay <alay:Co <alay:Co </alay:Overla </alay:LayoutMan </amet:LayoutPropertie </aco:MetaInformation> <aco:SubComponents> <aco:AmaImageCompo <aco:MetaInforma <amet:MetaD <amet:MetaD <b>Ope </amet:MetaD </aco:MetaInforma
ComponentRepository
Input Doc.contains all variants and adaptationoptions
Context Model
Location Profile User ProfileDevice Profile
updateupdate
Context ModelingLocation Modeling
User Interactions
Device Modeling
Device Properties / UAProf
User Modeling
Integration into a Web system
© 2005 Michael Hinz , TU Dresden9
Conclusion / Future WorkDifferent context modeling components for different adaptation scenariosPersonalization, device independence, LBSIntegration into a context aware system architecture
Generic support for integrating arbitrary context modeling componentsPerformance aspects of the overall system architectureModular framework
for design and development of adaptive Web applications in different stages of an authoring process
© 2005 Michael Hinz , TU Dresden10
Prototyp
© 2005 Michael Hinz , TU Dresden11
Context Model
Acquire UserInteractions
User ModelingEvaluation Resolver
updated user preference rules
Is instance example for existing rules?
client side code (e.g. JavaScript, JAVA, JScript)
Client/Server Communication
Rule Calculation
Device Profile
Users Preference Modeling
