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SIGMOD
2009
ACM
120views Database» more  SIGMOD 2009»
14 years 9 months ago
Kernel-based skyline cardinality estimation
The skyline of a d-dimensional dataset consists of all points not dominated by others. The incorporation of the skyline operator into practical database systems necessitates an ef...
Zhenjie Zhang, Yin Yang, Ruichu Cai, Dimitris Papa...
EDBT
2006
ACM
191views Database» more  EDBT 2006»
14 years 9 months ago
Distributed Spatial Clustering in Sensor Networks
Abstract. Sensor networks monitor physical phenomena over large geographic regions. Scientists can gain valuable insight into these phenomena, if they understand the underlying dat...
Anand Meka, Ambuj K. Singh
SODA
2010
ACM
149views Algorithms» more  SODA 2010»
14 years 6 months ago
Sharp kernel clustering algorithms and their associated Grothendieck inequalities
abstract Subhash Khot Assaf Naor In the kernel clustering problem we are given a (large) n ? n symmetric positive semidefinite matrix A = (aij) with n i=1 n j=1 aij = 0 and a (sma...
Subhash Khot, Assaf Naor
SAC
2010
ACM
14 years 3 months ago
Coverage-hole trap model in target tracking using distributed relay-robot network
Target tracking is an important issue in wireless sensor network applications. In this paper, we design a Coverage-Hole Trap Model (CTM) based on a system that contains one moving...
Huawei Miao, Chia-Ching Ooi, Xiaowen Wu, Christian...
KDD
2009
ACM
200views Data Mining» more  KDD 2009»
14 years 3 months ago
Visual analysis of documents with semantic graphs
In this paper, we present a technique for visual analysis of documents based on the semantic representation of text in the form of a directed graph, referred to as semantic graph....
Delia Rusu, Blaz Fortuna, Dunja Mladenic, Marko Gr...