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TKDE
2008
111views more  TKDE 2008»
15 years 1 months ago
A Point Symmetry-Based Clustering Technique for Automatic Evolution of Clusters
In this paper, a new symmetry-based genetic clustering algorithm is proposed which automatically evolves the number of clusters as well as the proper partitioning from a data set. ...
Sanghamitra Bandyopadhyay, Sriparna Saha
WWW
2008
ACM
16 years 2 months ago
Planetary-scale views on a large instant-messaging network
We present a study of anonymized data capturing a month of high-level communication activities within the whole of the Microsoft Messenger instant-messaging system. We examine cha...
Jure Leskovec, Eric Horvitz
ACSAC
2005
IEEE
15 years 7 months ago
Privacy Requirements Implemented with a JavaCard
Privacy is extremely important in healthcare systems. Unfortunately, most of the solutions already deployed are developed empirically. After discussing some of such existing solut...
Anas Abou El Kalam, Yves Deswarte
SIGMOD
2001
ACM
124views Database» more  SIGMOD 2001»
16 years 1 months ago
Query Optimization In Compressed Database Systems
Over the last decades, improvements in CPU speed have outpaced improvements in main memory and disk access rates by orders of magnitude, enabling the use of data compression techn...
Zhiyuan Chen, Johannes Gehrke, Flip Korn
SDM
2009
SIAM
331views Data Mining» more  SDM 2009»
15 years 10 months ago
Privacy Preservation in Social Networks with Sensitive Edge Weights.
With the development of emerging social networks, such as Facebook and MySpace, security and privacy threats arising from social network analysis bring a risk of disclosure of con...
Jie Wang, Jinze Liu, Jun Zhang, Lian Liu