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SIGMOD
2008
ACM
210views Database» more  SIGMOD 2008»
14 years 6 months ago
Private queries in location based services: anonymizers are not necessary
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
Gabriel Ghinita, Panos Kalnis, Ali Khoshgozaran, C...
EDBT
2006
ACM
156views Database» more  EDBT 2006»
13 years 9 months ago
FlexInd: A Flexible and Parameterizable Air-Indexing Scheme for Data Broadcast Systems
Abstract. In wireless data broadcast systems, popular information is repetitively disseminated through possibly multiple communication channels to mobile clients using various type...
André Seifert, Jen-Jou Hung
CIKM
2006
Springer
13 years 8 months ago
Efficient range-constrained similarity search on wavelet synopses over multiple streams
Due to the resource limitation in the data stream environment, it has been reported that answering user queries according to the wavelet synopsis of a stream is an essential abili...
Hao-Ping Hung, Ming-Syan Chen
GIS
2007
ACM
14 years 7 months ago
Location anonymity in continuous location-based services
A major concern for large-scale deployment of location-based services (LBSs) is the potential abuse of their client location data, which may imply sensitive personal information. ...
Toby Xu, Ying Cai
GI
2004
Springer
13 years 11 months ago
Quality Criteria for Competency Assignments: Examples from a Project Management Case Study
: We present several quality criteria for skills management initiatives based on the competence-performance approach [Kor97]. The criteria help to measure reliability and validity ...
Tobias Ley, Dietrich Albert