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EDBT
2009
ACM
145views Database» more  EDBT 2009»
15 years 3 months ago
An efficient online auditing approach to limit private data disclosure
In a database system, disclosure of confidential private data may occur if users can put together the answers of past queries. Traditional access control mechanisms cannot guard a...
Haibing Lu, Yingjiu Li, Vijayalakshmi Atluri, Jaid...
DEDS
2000
106views more  DEDS 2000»
14 years 11 months ago
Simulation Budget Allocation for Further Enhancing the Efficiency of Ordinal Optimization
Abstract. Ordinal Optimization has emerged as an efficient technique for simulation and optimization. Exponential convergence rates can be achieved in many cases. In this paper, we...
Chun-Hung Chen, Jianwu Lin, Enver Yücesan, St...
ICDM
2009
IEEE
150views Data Mining» more  ICDM 2009»
14 years 9 months ago
Filtering and Refinement: A Two-Stage Approach for Efficient and Effective Anomaly Detection
Anomaly detection is an important data mining task. Most existing methods treat anomalies as inconsistencies and spend the majority amount of time on modeling normal instances. A r...
Xiao Yu, Lu An Tang, Jiawei Han
CIKM
2009
Springer
15 years 3 months ago
Efficient processing of group-oriented connection queries in a large graph
We study query processing in large graphs that are fundamental data model underpinning various social networks and Web structures. Given a set of query nodes, we aim to find the g...
James Cheng, Yiping Ke, Wilfred Ng
ICCV
2003
IEEE
16 years 1 months ago
Improved Fast Gauss Transform and Efficient Kernel Density Estimation
Evaluating sums of multivariate Gaussians is a common computational task in computer vision and pattern recognition, including in the general and powerful kernel density estimatio...
Changjiang Yang, Ramani Duraiswami, Nail A. Gumero...