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» An Upper Bound for B2[2] Sequences
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HICSS
2008
IEEE
143views Biometrics» more  HICSS 2008»
14 years 2 months ago
Bounding Prefix Transposition Distance for Strings and Permutations
A transposition is an operation that exchanges two adjacent substrings. When it is restricted so that one of the substrings is a prefix, it is called a prefix transposition. The p...
Bhadrachalam Chitturi, Ivan Hal Sudborough
CPM
2004
Springer
94views Combinatorics» more  CPM 2004»
14 years 1 months ago
Sorting by Length-Weighted Reversals: Dealing with Signs and Circularity
Abstract. We consider the problem of sorting linear and circular permutations and 0/1 sequences by reversals in a length-sensitive cost model. We extend the results on sorting by l...
Firas Swidan, Michael A. Bender, Dongdong Ge, Sima...
CRYPTO
2000
Springer
108views Cryptology» more  CRYPTO 2000»
14 years 9 days ago
Maximum Correlation Analysis of Nonlinear S-boxes in Stream Ciphers
Abstract. This paper investigates the design of S-boxes used for combining linear feedback shift register (LFSR) sequences in combination generators. Such combination generators ha...
Muxiang Zhang, Agnes Hui Chan
COCOA
2007
Springer
14 years 2 months ago
A Lagrangian Relaxation Approach for the Multiple Sequence Alignment Problem
Abstract. We present a branch-and-bound (bb) algorithm for the multiple sequence alignment problem (MSA), one of the most important problems in computational biology. The upper bou...
Ernst Althaus, Stefan Canzar
FOCS
2007
IEEE
14 years 2 months ago
Lower Bounds on Streaming Algorithms for Approximating the Length of the Longest Increasing Subsequence
We show that any deterministic data-stream algorithm that makes a constant number of passes over the input and gives a constant factor approximation of the length of the longest i...
Anna Gál, Parikshit Gopalan