2009 International Workshop on Location Based Social Networks (LBSN’09)

Nov. 3, 2009, Seattle, WA, USA

Held in conjunction with the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems

LBSN 2009 Program

8:15-8:30	Welcome
8:30-10:00	Paper Session 1: Understanding Users in LBSN Chair: Xiaofang Zhou (University of Queensland, Australia)
	Chih-Chieh Hung, Chih-Wen Chang and Wen-Chih Peng. Mining Trajectory Profiles for Discovering User Communities
	Kazuki Kodama, Yuichi Iijima, Xi Guo and Yoshiharu Ishikawa. Skyline Queries Based on User Locations and Preferences for Making Location-Based Recommendations
	Vincent Wenchen Zheng, Yu Zheng and Qiang Yang. Joint Learning User's Activities and Profiles from GPS Data
	Daisuke Yamamoto, Itsu Takumi and Hiroshi Matsuo. Location-Based Social Network Services Employing Student Cards for University
10:00-10:30	Coffee Break
10:30-12:00	Paper Session 2: Understanding Trajectories in LBSN Chair: Kazutoshi Sumiya (University of Hyogo, Japan)
	Kexin Xie, Ke Deng and Xiaofang Zhou. From Trajectories to Activities: A Spatio-Temporal Join Approach
	Yukun Chen, Kai Jiang, Yu Zheng, Chunping Li and Nenghai Yu. Trajectory Simplification Method for Location-Based Social Networking Services
	Guangzhong sun, Zhong Zhang and Jing Yuan. An Efficient Pre-Computation Technique for Approximation KNN Search in Road Networks
	Handong wang, Haixiang ZOU, Yang Yue and Qingquan Li. Visualizing Hot Spot Analysis Result Based on Mashup
12:00-13:30	Lunch (On your own)
13:30-15:00	Paper Session 3: Understanding Multimedia in LBSN Chair: Yoshiharu Ishikawa (Nagoya University, Japan)
	Dong-Po Deng, Tyng-Ruey Chuang and Rob Lemmens. Conceptualization of Place via Spatial Clustering and Co-occurrence Analysis
	Daniel Leung and Shawn Newsam. Proximate Sensing Using Georeferenced Community Contributed Photo Collections
	Xin Lu, Yanwei Pang, Qiang Hao and Lei Zhang. Visualizing Textual Travelogue with Location-Relevant Images
	Kazutoshi Sumiya. Less-Conscious Information Retrieval Techniques for Location Based Services
15:00-15:30	Coffee Break
15:30-17:00	Paper Session 4: Applications of LBSN Chair: Xing Xie (Microsoft Research Asia, China)
	Bertrand De Longueville, Robin S. Smith and Gianluca Luraschi. “OMG, from here, I can see the flames!”: a use case of mining Location Based Social Networks to acquire spatiotemporal data on forest fires
	Hassan Karimi, Benjamin Zimmerman, Alper Ozcelik and Duangduen Roongpiboonsopit. SoNavNet: A Framework for Social Navigation Networks
	Edward Pultar and Martin Raubal. A Case for Space: Physical and Virtual Location Requirements in the CouchSurfing Social Network
	Tobias Lange, Marek Kowalkiewicz, Thomas Springer and Tobias Raub. Overcoming challenges in delivering services to social networks in location centric scenarios
17:00-17:30	Closing Remarks and Adjournment of Workshop