2nd International Workshop on Information Management for Mobile Applications Bo Xu 0 1 2 Sandra Geisler RWTH Aachen University Privacy Preservation for Location-Based Services Based on Attribute Visibility Masanori Mano (Graduate School of Information Science, Nagoya University, Japan), Xi Guo (Graduate School of Information Science, Nagoya University, Japan), Tingting Dong (Graduate School of Information Science, Nagoya University, Japan), Yoshiharu Ishikawa, Information Technology Center/Graduate School of Information Science, Nagoya University , Japan Thierry Delot University of Valenciennes & Inria Lille University of Illinois at Chicago , USA

Mobile devices pose tremendous challenges to the design and implementation of information systems suited for mobile environments. While users expect similar functionality on their smart-phone as provided on their laptop or desktop computer, the hardware and communication platforms are still limited. Especially, data-intensive mobile applications require new ways of data management, processing, and analysis. Crucial issues include energy-e ciency, limited CPU power and storage, real-time processing, small displays, and communication costs. The International Workshop on Information Management for Mobile Applications (IMMoA'12) targets to provide a forum for researchers and practitioners to present, share, and discuss insights, advancements, and challenges in technologies and mechanisms which support the management of mobile, complex, integrated, distributed, and heterogeneous data-focused applications. The workshop aims in particular at the challenges of managing complex data and data models in a mobile context. Mobile data management has become an important research area in the eld of data management. Therefore, the 38th International Conference on Very Large Databases provides an interesting forum to discuss recent advancements in mobile data management research. The limitations but also new opportunities of mobile devices initiated new research topics which are addressed in this workshop. We received more than ten high quality submissions of which we could accept ve as full papers and and one as short paper. The papers have been peer-reviewed by three to four reviewers each. The accepted papers discuss data management techniques for distributed mobile applications and peer-to-peer systems, integration of distributed mobile data sources, mechanisms for privacy preservation, and context-based systems. The workshop program is completed by an invited talk entitled \Dynamic Context Management for Mobile Applications" given by Prof. Dr. Daniela Nicklas from Oldenburg University. We hope that the workshop initiates inspiring and fruitful discussions and that the second edition will be as successful as the rst workshop held in 2011. We would like to thank the DFG Research Cluster Ultra High-Speed Mobile Information and Communication (UMIC, http://www.umic. rwth-aachen.de) at RWTH Aachen University, Germany, for their support in organizing this event. Furthermore, we would like to thank the reviewers for their good work.

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Workshop Chairs and Program Committee

 Workshop Chairs

Thierry Delot, Dept. of Computer Science, University of Valenciennes & Inria Lille, France Sandra Geisler, Information Systems, RWTH Aachen University, Germany Christoph Quix, Information Systems, RWTH Aachen University, Germany Bo Xu, Department of Computer Science, University of Illinois at Chicago

 Program Committee Yuan An, Drexel University, USA Ying Cai, Iowa State University, USA Xin Chen, NavTeq, USA Hyung-Ju Cho, Ajou University, Korea Christine Collet, Grenoble INP, France Bruno Defude, Telecom & Management Sud Paris, France Marwan Hassani, RWTH Aachen University, Germany Hideki Hayashi, Hitachi Central Research Laboratory, Japan Sergio Ilarri, University of Zaragoza, Spain David Kensche, Thinking Networks AG, Germany Xiangyang Li, Illinois Institute of Technology, USA Andreas Lorenz, Deutsche Telekom AG, Germany Doug Lundquist, University of Illinois at Chicago, USA Sanjay Madria, Missouri University of Science and Technology, USA Jochen Meyer, OFFIS, Germany Nathalie Mitton, INRIA Lille, France Xinzheng Niu, University of Electronic Science and Technology of China, China Aris Ouksel, University of Illinois at Chicago, USA Claudia Plant, Florida State University, USA Florence Sedes, University Paul Sabatier Toulouse, France David Taniar, Monash University, Australia Masaaki Tanizaki, Hitachi Central Research Laboratory, Japan Goce Trajcevski, Northwestern University, USA Upkar Varshney, Georgia State University, USA Jari Veijalainen, University of Jyvaskyla, Finland Ouri Wolfson, University of Illinois at Chicago, USA Jose-Luis Zechinelli-Martini, Universidad de Las Americas Puebla, Mexico Xianggang Zhang, University of Electronic Science and Technology of China, China 2

Keynote: Dynamic Context Management for Mobile Applications Daniela Nicklas (Carl von Ossietzky Universitat Oldenburg, Germany) A Hierarchical Approach to Resource Awareness in DHTs for Mobile Data Management

 Liz Ribe-Baumann (Ilmenau University of Technology, Germany) Kai-Uwe Sattler (Ilmenau University of Technology, Germany)

Towards an ambient data mediation system Kim Ta^m Huynh (PRiSM Laboratory, University of Versailles, France), Beatrice Finance (PRiSM Laboratory, University of Versailles, France), Mokrane Bouzeghoub (PRiSM Laboratory, University of Versailles, France) Context-Aware Routing Method for P2P File Sharing Systems over MANET Taou k Yeferny (Dept. of Computer Science, Faculty of Sciences of Tunis, Tunisia), Khedija Arour (Dept. of Computer Science, National Institute of Applied Sciences and

 Technology of Tunis, Tunisia), Amel Bouzeghoub (Dept. of Computer Science, Telecom SudParis, France)

Applying Pervasive and Flexible Access Control to Distributed Multimedia Retrieval Dana Al Kukhun (Universite de Toulouse - IRIT - UMR 5505, France), Dana Codreanu (Universite de Toulouse - IRIT - UMR 5505, France), Ana-Maria Manzat (Universite de Toulouse - IRIT - UMR 5505, France), Florence Sedes (Universite de Toulouse - IRIT - UMR 5505, France) 4 5 13 21 26 33 41