International Conference on Mobile Data
                                  Management (MDM ‘09)


 MDM 2009
               ...
Agenda
                                Introduction
                             –      The German Excellence Research Cl...
Introduction to UMIC
                          Ultra High-Speed Mobile Information and Communication
                    ...
Requirements for UMIC in Scenario
                                  Virtual Campfire

                                    ...
The LAS Server
                          Lightweight Application Server
                             (Spaniol et al., 200...
Research Questions
                          How can performance of mobile multimedia applications
                      ...
Methodologies and Technologies
                          Service Oriented Architecture
                           (Burber...
MPEG-7 Based Multimedia Services
                          MPEG-7 Multimedia Content Description Interface (Martinez et a...
Alternative System Architecture
                                                 LAS access with Mobile Web
             ...
Implementation
                          Mobile middleware
                            – Mobile Web Services on the
 MDM ...
Evaluation via MobSOS
                          MobSOS is a test bed for multimedia community services
                  ...
Evaluation Results
                          Multimedia files are retrieved on search request on mobile devices
         ...
Conclusions
                          Design and implementation of alternative architecture
                             ...
Outlook
                          A complete mobile multimedia service chain for
                           mobile multim...
Questions?
                          http://www.umic.rwth-aachen.de

                          The 8th International Con...
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Mobile Access to MPEG-7 Based Multimedia Services

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International Conference on Mobile Data Management (MDM ‘09)
Yiwei Cao 曹怡蔚, Matthias Jarke, Ralf Klamma, Oscar Mendoza, and Satish Srirama
Informatik 5 (Information Systems), RWTH Aachen University
May 19, 2009
Taipei, Taiwan

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Mobile Access to MPEG-7 Based Multimedia Services

  1. 1. International Conference on Mobile Data Management (MDM ‘09) MDM 2009 Mobile Access to MPEG-7 Based Multimedia Services Yiwei Cao Matthias Jarke Ralf Klamma Oscar Mendoza Satish Srirama Yiwei Cao 曹怡蔚, Matthias Jarke, Ralf Klamma, Oscar Mendoza, and Satish Srirama Informatik 5 (Information Systems), RWTH Aachen University May 19, 2009 Taipei, Taiwan Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-1
  2. 2. Agenda  Introduction – The German Excellence Research Cluster UMIC MDM 2009 – Requirements from the LAS multimedia services – Research questions Yiwei Cao Matthias Jarke  Methodologies and technologies Mobile access to multimedia services Ralf Klamma Oscar Mendoza Satish Srirama  – Mobile access with mobile web servers and via ESB – Implementation on iPhones and smartphones – Evaluation by service monitoring on MobSOS  Conclusions and outlook Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-2
  3. 3. Introduction to UMIC  Ultra High-Speed Mobile Information and Communication – A research cluster established at RWTH Aachen University MDM 2009 under the excellence initiative of the German Government, 2006-2011 with an average funding of 6.5 million Euro per year Yiwei Cao – Concepts and demonstrators for smart, mobile, broadband, Matthias Jarke Ralf Klamma low-cost systems – Interdisciplinary design with four research Oscar Mendoza Satish Srirama areas among over 20 research groups  Mobile Application & Services – Demanding applications of the next-generation mobile Internet Lehrstuhl Informatik 5 – Quality of mobile services  Virtual Campfire – mobile social software (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-3
  4. 4. Requirements for UMIC in Scenario Virtual Campfire Mobile social software Virtual Campfire Architecture MDM 2009 Software MobSOS Web Mobile services web services ... LAS ?? Yiwei Cao Matthias Jarke Ralf Klamma Affordable communication Mesh networks, WiMax, etc. Oscar Mendoza technologies Satish Srirama  A load balancing distribution of multimedia services to enhance quality of service  Better access to multimedia services on the mobile client side for scalability Lehrstuhl Informatik 5 (Informationssysteme)  Mobile service sharing among different mobile device holders Prof. Dr. M. Jarke I5-CJK*-0509-4
  5. 5. The LAS Server  Lightweight Application Server (Spaniol et al., 2006) MDM 2009  The community engine  MPEG-7 based multimedia services Yiwei Cao  Web Services orchestration Matthias Jarke Ralf Klamma Oscar Mendoza  Easy configuration and rapid prototyping Satish Srirama Mobile access? Distributed? Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-5
  6. 6. Research Questions  How can performance of mobile multimedia applications be enhanced? MDM 2009 – Reduction of large data volumes – Reduction of high cost of wireless data communication – Dealing with overload of rich semantic information Yiwei Cao – Data interoperability among different mobile platforms  Does mobile middleware provide good solutions? Matthias Jarke Ralf Klamma Oscar Mendoza Satish Srirama – What kind of mobile middleware solutions exist on those handheld devices with limited resource capacity? – Is additional data communication overhead resulted by middleware? – What about the portability and scalability of mobile access on various mobile platforms? Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-6
  7. 7. Methodologies and Technologies  Service Oriented Architecture (Burberk, 2000; Hasan and Duran, 2006) MDM 2009 – Web Services – Cloud Computing (Chappell, 2008) Yiwei Cao  Mobile Web Services Matthias Jarke Ralf Klamma (Srirama et al., 2006) Oscar Mendoza Satish Srirama – Mobile devices are Web Service consumers and providers – Standards based, e.g. SOAP, XML, WSDL, HTTP – Use of kSOAP and kXML Lehrstuhl Informatik 5  Enterprise Integration (Keen et al., 2004) (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-7 – Enterprise Service Bus (ESB)
  8. 8. MPEG-7 Based Multimedia Services  MPEG-7 Multimedia Content Description Interface (Martinez et al., 2002)  Multimedia annotation services (Spaniol et al., 2006) MDM 2009 – Automatic extraction of technical and context-aware information – Multiple tagging methods: free text, image, semantic based, commsonomy  Multimedia search services (Cao et al., 2008) LAS services – Semantic search Yiwei Cao Multimedia Multimedia Multimedia Matthias Jarke Ralf Klamma Oscar Mendoza – Keyword search search annotation sharing services services services Satish Srirama – Context-aware search etc.  Multimedia sharing services (Klamma et al., 08) MPEG-7 services – Storytelling service LAS core services – Image services etc.  The basic multimedia MPEG-7 services (Klamma et al., 2006) Lehrstuhl Informatik 5 – Creation and modification of MPEG-7 metadata (Informationssysteme) Prof. Dr. M. Jarke – XML binding I5-CJK*-0509-8
  9. 9. Alternative System Architecture  LAS access with Mobile Web Services MDM 2009 Yiwei Cao Matthias Jarke Ralf Klamma Oscar Mendoza Satish Srirama  LAS access via Enterprise Service Lehrstuhl Informatik 5 Bus (ESB) (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-9
  10. 10. Implementation  Mobile middleware – Mobile Web Services on the MDM 2009 Mobile Host – OpenESB Yiwei Cao Matthias Jarke  The prototype on the client side Ralf Klamma Oscar Mendoza – Mobile access to LAS – Nokia N95: J2ME CLDC Satish Srirama – iPhone: Objective C – Mobile multimedia annotation: free text tagging and MPEG-7 standard based semantic tagging Lehrstuhl Informatik 5 – Mobile multimedia search (Informationssysteme) Prof. Dr. M. Jarke and retrieval I5-CJK*-0509-10
  11. 11. Evaluation via MobSOS  MobSOS is a test bed for multimedia community services (Renzel et al., 2008) MDM 2009  Theoretically conceptualized on the D&M IS Success Model (Delone and McLean, 1992) Yiwei Cao Matthias Jarke  Easy in use via the MobSOS HTTP connector Ralf Klamma Oscar Mendoza  Each LAS service call is monitored and stored in the monitoring data repository Satish Srirama  The survey data repository to enhance system and information quality via users’ satisfaction measure  Data analysis with SPSS Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-11
  12. 12. Evaluation Results  Multimedia files are retrieved on search request on mobile devices  MPEG-7 based multimedia services are monitored by MobSOS MDM 2009 Yiwei Cao Matthias Jarke Ralf Klamma Oscar Mendoza Satish Srirama Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-12
  13. 13. Conclusions  Design and implementation of alternative architecture Factors Mobile Web Services ESB as middleware MDM 2009 Performance Response time is proportional to multi- Response time increases media file size and increases exponentially linearly at a low rate Scalability Not scalable, only one LAS server is Scalable, distributed access connected to LAS services Yiwei Cao Matthias Jarke Development Details must be known by clients WSDL is used to publish and Ralf Klamma cost find Web services on the ESB Oscar Mendoza Satish Srirama Reliability Long response time by Web Services Short response time overload  Interoperability and scalability are crucial for mobile multimedia services across various mobile platforms  Load balancing can reduce wireless data communication cost and improve mobile multimedia service quality Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-13  Quality of services can be traced by service monitoring
  14. 14. Outlook  A complete mobile multimedia service chain for mobile multimedia management  Interoperable mobile multimedia management MDM 2009  Further enhancement of multimedia service Yiwei Cao Matthias Jarke quality with MobSOS monitoring Multimedia sharing by Ralf Klamma Oscar Mendoza Satish Srirama  Multimedia services sharing storytelling etc. via the XMPP protocol Multimedia Multimedia Multimedia  Context-aware and semantic creation with services search and monitoring adaptation mobile multimedia services 3D scanners  Mobile services as nodes in the MPEG-7 based Lehrstuhl Informatik 5 (Informationssysteme) vision of Cloud Computing multimedia Prof. Dr. M. Jarke annotation I5-CJK*-0509-14
  15. 15. Questions?  http://www.umic.rwth-aachen.de  The 8th International Conference on Web-based Learning MDM 2009 (ICWL‘09), August 19-21, 2009, Aachen, Germany Yiwei Cao Matthias Jarke – Call for participation – Call for papers to Workshops Ralf Klamma Oscar Mendoza Satish Srirama Lehrstuhl Informatik 5 (Informationssysteme) Prof. Dr. M. Jarke I5-CJK*-0509-15
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