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COMBINATORICS
2007
99views more  COMBINATORICS 2007»
14 years 10 months ago
Permutations Without Long Decreasing Subsequences and Random Matrices
We study the shape of the Young diagram λ associated via the Robinson– Schensted–Knuth algorithm to a random permutation in Sn such that the length of the longest decreasing ...
Piotr Sniady
CPM
1999
Springer
144views Combinatorics» more  CPM 1999»
15 years 2 months ago
Ziv Lempel Compression of Huge Natural Language Data Tries Using Suffix Arrays
We present a very efficient, in terms of space and access speed, data structure for storing huge natural language data sets. The structure is described as LZ (Ziv Lempel) compresse...
Strahil Ristov, Eric Laporte
COCOON
2009
Springer
15 years 1 months ago
Three New Algorithms for Regular Language Enumeration
We present new and more efficient algorithms for regular language enumeration problems. The min-word problem is to find the lexicographically minimal word of length n accepted by ...
Margareta Ackerman, Erkki Mäkinen
DAM
2007
85views more  DAM 2007»
14 years 10 months ago
Testing primitivity on partial words
Primitive words, or strings over a finite alphabet that cannot be written as a power of another string, play an important role in numerous research areas including formal language...
Francine Blanchet-Sadri, Arundhati R. Anavekar
SIAMDM
2010
84views more  SIAMDM 2010»
14 years 8 months ago
Complementary Iterated Floor Words and the Flora Game
Let ϕ = (1 + √ 5)/2 denote the golden section. We investigate relationships between unbounded iterations of the floor function applied to various combinations of ϕ and ϕ2. We...
Aviezri S. Fraenkel