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ICPR
2006
IEEE
16 years 5 months ago
Fingerprint Image Enhancement Based on Skin Profile Approximation
The performance of the fingerprint identification and verification systems relies heavily on the quality of the input fingerprint images. In this paper, we propose an effective im...
Venu Govindaraju, Zhixin Shi
137
Voted
WADS
2009
Springer
274views Algorithms» more  WADS 2009»
15 years 10 months ago
Approximating Transitive Reductions for Directed Networks
Abstract. We consider minimum equivalent digraph problem, its maximum optimization variant and some non-trivial extensions of these two types of problems motivated by biological an...
Piotr Berman, Bhaskar DasGupta, Marek Karpinski
258
Voted
WADS
2009
Springer
378views Algorithms» more  WADS 2009»
15 years 10 months ago
Two for One: Tight Approximation of 2D Bin Packing
In this paper, we study the two-dimensional geometrical bin packing problem (2DBP): given a list of rectangles, provide a packing of all these into the smallest possible number of ...
Klaus Jansen, Lars Prädel, Ulrich M. Schwarz
FOCS
2004
IEEE
15 years 7 months ago
Approximating Edit Distance Efficiently
Edit distance has been extensively studied for the past several years. Nevertheless, no linear-time algorithm is known to compute the edit distance between two strings, or even to...
Ziv Bar-Yossef, T. S. Jayram, Robert Krauthgamer, ...
ALGORITHMICA
2005
195views more  ALGORITHMICA 2005»
15 years 3 months ago
Bit-Parallel Witnesses and Their Applications to Approximate String Matching
We present a new bit-parallel technique for approximate string matching. We build on two previous techniques. The first one, BPM [Myers, J. of the ACM, 1999], searches for a patte...
Heikki Hyyrö, Gonzalo Navarro