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GIS
2006
ACM
13 years 10 months ago
2006
ACM
This paper tackles a major privacy threat in current location-based services where users have to report their exact locations to the database server in order to obtain their desir...
MDM
2010
Springer
14 years 1 days ago
2010
Springer
A k-Range Nearest Neighbor (or kRNN for short) query in road networks finds the k nearest neighbors of every point on the road segments within a given query region based on the net...
SACMAT
2011
ACM
13 years 28 days ago
2011
ACM
In this paper, we present an approach for identity and access management (IAM) in the context of (cross-organizational) serviceoriented architectures (SOA). In particular, we de�...
SDM
2011
SIAM
13 years 27 days ago
2011
SIAM
Latent semantic analysis (LSA), as one of the most popular unsupervised dimension reduction tools, has a wide range of applications in text mining and information retrieval. The k...
SDM
2011
SIAM
13 years 27 days ago
2011
SIAM
A binary matrix is fully nested if its columns form a chain of subsets; that is, any two columns are ordered by the subset relation, where we view each column as a subset of the r...