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PET
2004
Springer
14 years 1 months ago
A Formal Privacy System and Its Application to Location Based Services
There are a variety of well-known models for access control developed for purposes like formally modeling the access rights on files, databases, and web resources. However, the ex...
Carl A. Gunter, Michael J. May, Stuart G. Stubbleb...
EDBT
2010
ACM
185views Database» more  EDBT 2010»
13 years 9 months ago
Probabilistic threshold k nearest neighbor queries over moving objects in symbolic indoor space
The availability of indoor positioning renders it possible to deploy location-based services in indoor spaces. Many such services will benefit from the efficient support for k n...
Bin Yang 0002, Hua Lu, Christian S. Jensen
PODS
2008
ACM
152views Database» more  PODS 2008»
14 years 7 months ago
Towards a theory of schema-mapping optimization
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
Ronald Fagin, Phokion G. Kolaitis, Alan Nash, Luci...
MM
2003
ACM
113views Multimedia» more  MM 2003»
14 years 27 days ago
R-Histogram: quantitative representation of spatial relations for similarity-based image retrieval
Representation of relative spatial relations between objects is required in many multimedia database applications. Quantitative representation of spatial relations taking into acc...
Yuhang Wang, Fillia Makedon
VLDB
2007
ACM
125views Database» more  VLDB 2007»
14 years 1 months ago
Data Integration with Uncertainty
This paper reports our first set of results on managing uncertainty in data integration. We posit that data-integration systems need to handle uncertainty at three levels, and do...
Xin Luna Dong, Alon Y. Halevy, Cong Yu