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Displaying 1-5 out of 5 total
Geo-Store: A Framework for Supporting Semantics-Enabled Location-Based Services
Found in: IEEE Internet Computing
By Wei-Shinn Ku,Haiquan Chen,Chih-Jye Wang,Chuan-Ming Liu
Issue Date:March 2013
pp. 35-43
Location-based services (LBSs) are popular information services for mobile users, who access them using location-aware mobile devices over wireless networks. To enable devices to understand and exchange information on the Web, LBS providers use Semantic We...
 
Anonymous Sensory Data Collection Approach for Mobile Participatory Sensing
Found in: 2012 IEEE International Conference on Data Engineering Workshops (ICDEW)
By Chih-Jye Wang,Wei-Shinn Ku
Issue Date:April 2012
pp. 220-227
In participatory sensing, users with mobile devices participate in the collection of environmental information around them and submit the collected data to a central server for processing and analysis. Identity privacy of mobile users in this model is a ma...
 
Geo-Store: a spatially-augmented SPARQL query evaluation system
Found in: Proceedings of the 20th International Conference on Advances in Geographic Information Systems (SIGSPATIAL '12)
By Chih-Jye Wang, Haiquan Chen, Wei-Shinn Ku
Issue Date:November 2012
pp. 562-565
The techniques of utilizing spatial data on the Semantic Web have attracted more and more interest from researchers due to the rapidly increasing applications based on geographic information. However, there are currently limited solutions providing efficie...
     
Efficient evaluation of skyline queries in wireless data broadcast environments
Found in: Proceedings of the 20th International Conference on Advances in Geographic Information Systems (SIGSPATIAL '12)
By Chih-Jye Wang, Wei-Shinn Ku
Issue Date:November 2012
pp. 442-445
Skyline is a popular query type which retrieves data objects that are not dominated by any other object with respect to multiple attributes. Skyline queries have broad applications; however, limited studies have been done on skyline in the broadcast data m...
     
INTACT: a spatial query integrity assurance framework for location-based services
Found in: Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems (GIS '10)
By Chih-Jye Wang, Cyrus Shahabi, Ling Hu, Wei-Shinn Ku
Issue Date:November 2010
pp. 536-537
It is cost-effective for data owners to publicize their spatial databases via database outsourcing; however, data privacy and query integrity are major challenges. In this demonstration, we implemented the INTACT (spatial query INTegrity AssuranCe framewor...
     
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