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Stefan Arbanowski, Olaf Droegehorn,

WWRF Briefing WG2-br2 Next Generation Mobile Service Features. STRATEGIC VISION on future research directions in the wireless field. Stefan Arbanowski, Olaf Droegehorn, Wolfgang Kellerer, Herma van Kranenburg, Kimmo Raatikainen, Stefan Steglich

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Stefan Arbanowski, Olaf Droegehorn,

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  1. WWRF Briefing WG2-br2 Next Generation Mobile Service Features STRATEGIC VISION on future research directions in the wireless field Stefan Arbanowski, Olaf Droegehorn, Wolfgang Kellerer, Herma van Kranenburg,Kimmo Raatikainen, Stefan Steglich WWRF13, Jeju, Korea, Feb. 2-3, 2005 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  2. Reference Model Communication Space (Contexts & Objects) User Model & Appl. Scenarios Service Semantic Ambient Awareness Personalization Adaptation Service Bundling ServiceControl Service Discovery Service Creation Environment Monitoring Service Deployment ConflictResolution Generic Service Elements for all layers Application Support Layer Service Platform BusinessModel Service Execution Layer Service Support Layer IP based Communication Subsystem Network Control & Management Layer IP Transport Layer Networks Wired or wireless Networks Devices and Communication End Systems Terminals WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  3. Reference Model User Model & Appl. Scenarios Service Features Ambient Awareness Personalization Adaptation Service Bundling ServiceControl Service Discovery Service Creation Environment Monitoring Service Deployment ConflictResolution Application Support Layer Service Execution Layer Service Support Layer Network Control & Management Layer IP Transport Layer Networks Terminals WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  4. Personalization • The Personalization feature provides information to tailor services to the individual preferences of the users in a given context to • Ease service selection and usage • Increase the perception of the user's communication space • Personalized services automatically reflect user needs in a specific situation (context) WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  5. Service A Service B Service C Personalization Function Interface Preferences Management Database General Personalization Model Approach WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  6. Personalization Factors • Acquisition of user preferences (interactively or automated) • Storage of preferences in user profiles • Profile exchange • Description of the user context • Preference-based activation of the user context • Security and privacy WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  7. Systems Used for Learning User Preferences Preferences are learned by the observation of user behavior in certain contexts according to predefined rules Computers Assisted Self Explication:the user specifies preferences online Recommendation systems: Exploit human feed back to learn preferences The actors recommendations are compared and combined into groups with similar profiles WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  8. User Profiles • Storage of preferences in user profiles • Information model describing User Preferences • user specific information (name, address, …) and • user specific preferences • State of the Art description languages include • Composite Capabilities/Preferences Profile (CC/PP) and • UserAgent Profile (UAProf): CC/PP vocabulary for terminals • Profile selection and activation • There is always (exactly) one active profile per user • Selection of the active profile according to the “activation context” WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  9. User Context WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  10. Ontology-based User Profile and Context Description • Semantic information helps to understand relationships between objects (compare profiles, default preferences, technical abstraction) WSMF DAML-S OWL DAML+OIL DAML-S DAML Services DAML+OIL DARPA Agent Markup Language, Ontology Inference Layer WSMF Web Service Modeling Framework OWL Web Ontology Language RDFS RDF Schema RDF Resource Description Framework RDFS XHTML RDF HTML XML WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  11. Ambient Awareness • I-centric systems • Services to be tailored to user preferences and user contexts (personalization) • Services automatically adapt to changes in the context (adaptation) • The Ambient Awareness feature supports the collection and management of context information in the communication space (ambient information) • Acquisition of ambient information • Interpretation of ambient information WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  12. Ambient Awareness Factors • Acquisition of ambient information • Sensing of the user context (sensors, HMI) • User context, physical context, time, computing context • Exchange of ambient information • Interpretation of ambient information • Provision of the ambient information to services and portal components WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  13. Sensors Sensors Capturing Ambient Information WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  14. Acquisition of Ambient Information Service Provisioning/Usage of Ambient Information Ambient Information Server Ambient Information Store Interpreter Interpreter Sensor Network Interpreter Interpreter Direct Information Gathering Indirect Information Gathering User Interaction WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  15. Provisioning Chain for Ambient Information WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  16. Adaptability • The Adaptability feature provides support to application to be able to adapt to changes in the context • Based on information (profiles, preferences, ambient information) provided by the personalization and ambient awareness features • Typical situations: • substantial change in characteristics of connectivity • entering into a new service domain • changing terminal device in the service session WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  17. Adaptability Factors • Media adaptation • Text-to-speech, transcoding • Content adaptation • Presentation, ordering, ading/deleting information • Service behavior adaptation • Adaptability has to be reactive and proactive WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  18. AccessNetwork A B Request Request Svc Desc Service Adaptation Function Service Respond Respond • Delivery Context • Capabilities of theaccess mechanism • Ambient information • User preferences Profile and Preferences Management System Ambient Information Server Terminal Service Adaptation WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  19. Adaptability Enablers • Environment monitoring • Event notification • Distributed application framework(adaptation environment) • Perception service (store and retrieve knowledge) • Modeling services (model builder, combiner) • Ontology service • Semantic matching engine • Mobile distributed information base (reliable, stable, sync.) Detect changes and notify Component discovery, replacement, relocation, combination, configuration Understanding, matching and using various models WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  20. Summary • Three main service features have been identified to support B3G services and applications • Personalization • Ambient Awareness • Adaptation • This WWRF Briefing presents these features and describes their main enabling functionalities (called factors) needed to realize these features • A detailed description of personalization, ambient awareness and adaptation is given in three WG2 White Papers with these same titles WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  21. Credits to • All contributors to the WG2 White Papers ‘Personalization‘, ‘Ambient Awareness‘, ‘Adaptation‘ WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

  22. Contact • See http://www.wireless-world-research.org/ • See http://wg2.ww-rf.org/ • mailto: arbanowski@fokus.fraunhofer .de • mailto: kellerer@docomolab-euro.com WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea

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