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» Improved Steiner tree approximation in graphs
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DMSN
2004
ACM
13 years 10 months ago
Optimization of in-network data reduction
We consider the in-network computation of approximate “big picture” summaries in bandwidth-constrained sensor networks. First we review early work on computing the Haar wavele...
Joseph M. Hellerstein, Wei Wang
SIGMOD
2005
ACM
166views Database» more  SIGMOD 2005»
14 years 5 months ago
Substructure Similarity Search in Graph Databases
Advanced database systems face a great challenge raised by the emergence of massive, complex structural data in bioinformatics, chem-informatics, and many other applications. The ...
Xifeng Yan, Philip S. Yu, Jiawei Han
PAMI
2006
168views more  PAMI 2006»
13 years 5 months ago
Graphical Models and Point Pattern Matching
This paper describes a novel solution to the rigid point pattern matching problem in Euclidean spaces of any dimension. Although we assume rigid motion, jitter is allowed. We pres...
Tibério S. Caetano, Terry Caelli, Dale Schu...
APPROX
2010
Springer
154views Algorithms» more  APPROX 2010»
13 years 6 months ago
The Checkpoint Problem
In this paper, we consider the checkpoint problem in which given an undirected graph G, a set of sourcedestinations {(s1, t1), (s1, t1), . . . , (sk, tk)} and a set of fixed paths...
MohammadTaghi Hajiaghayi, Rohit Khandekar, Guy Kor...
DATE
2002
IEEE
74views Hardware» more  DATE 2002»
13 years 10 months ago
Maze Routing with Buffer Insertion under Transition Time Constraints
In this paper, we address the problem of simultaneous routing and buffer insertion. Recently in [12, 22], the authors considered simultaneous maze routing and buffer insertion und...
Li-Da Huang, Minghorng Lai, D. F. Wong, Youxin Gao