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WWW
2007
ACM
14 years 8 months ago
2007
ACM
Given a large online network of online auction users and their histories of transactions, how can we spot anomalies and auction fraud? This paper describes the design and implemen...
COMPGEOM
2011
ACM
12 years 11 months ago
2011
ACM
We propose a framework for compressive sensing of images with local geometric features. Specifically, let x ∈ RN be an N-pixel image, where each pixel p has value xp. The image...
FSTTCS
2009
Springer
14 years 2 months ago
2009
Springer
A tournament T = (V, A) is a directed graph in which there is exactly one arc between every pair of distinct vertices. Given a digraph on n vertices and an integer parameter k, th...
ICDM
2009
IEEE
13 years 5 months ago
2009
IEEE
The recent proliferation of graph data in a wide spectrum of applications has led to an increasing demand for advanced data analysis techniques. In view of this, many graph mining ...
VLDB
2011
ACM
13 years 2 months ago
2011
ACM
Uncertain data is inherent in a few important applications such as environmental surveillance and mobile object tracking. Top-k queries (also known as ranking queries) are often n...