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RECOMB
1997
Springer
13 years 9 months ago
A more efficient approximation scheme for tree alignment
We present a new polynomial time approximation scheme (PTAS) for tree alignment, which is an important variant of multiple sequence alignment. As in the existing PTASs in the liter...
Lusheng Wang, Tao Jiang, Dan Gusfield
PODS
2006
ACM
217views Database» more  PODS 2006»
14 years 4 months ago
A simpler and more efficient deterministic scheme for finding frequent items over sliding windows
In this paper, we give a simple scheme for identifying approximate frequent items over a sliding window of size n. Our scheme is deterministic and does not make any assumption on ...
Lap-Kei Lee, H. F. Ting
SODA
1998
ACM
157views Algorithms» more  SODA 1998»
13 years 6 months ago
A Polynomial Time Approximation Scheme for Minimum Routing Cost Spanning Trees
Given an undirected graph with nonnegative costs on the edges, the routing cost of any of its spanning trees is the sum over all pairs of vertices of the cost of the path between t...
Bang Ye Wu, Giuseppe Lancia, Vineet Bafna, Kun-Mao...
ICMCS
2006
IEEE
227views Multimedia» more  ICMCS 2006»
13 years 10 months ago
Adaptive Dual AK-D Tree Search Algorithm for ICP Registration Applications
An algorithm for finding coupling points plays an important role in the Iterative Closest Point algorithm (ICP) which is widely used in registration applications in medical and 3-...
Jiann-Der Lee, Shih-Sen Hsieh, Chung-Hsien Huang, ...
PAMI
2008
160views more  PAMI 2008»
13 years 4 months ago
Parametric Image Alignment Using Enhanced Correlation Coefficient Maximization
In this work, we propose the use of a modified version of the correlation coefficient as a performance criterion for the image alignment problem. The proposed modification has the ...
Georgios D. Evangelidis, Emmanouil Z. Psarakis