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» Leaf languages and string compression
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FSTTCS
2008
Springer
13 years 5 months ago
Leaf languages and string compression
Tight connections between leafs languages and strings compressed via straight-line programs (SLPs) are established. It is shown that the compressed membership problem for a languag...
Markus Lohrey
PODS
2006
ACM
216views Database» more  PODS 2006»
14 years 4 months ago
Cache-oblivious string B-trees
B-trees are the data structure of choice for maintaining searchable data on disk. However, B-trees perform suboptimally ? when keys are long or of variable length, ? when keys are...
Michael A. Bender, Martin Farach-Colton, Bradley C...
COCO
2004
Springer
78views Algorithms» more  COCO 2004»
13 years 10 months ago
Language Compression and Pseudorandom Generators
The language compression problem asks for succinct descriptions of the strings in a language A such that the strings can be efficiently recovered from their description when given...
Harry Buhrman, Troy Lee, Dieter van Melkebeek
SIAMDM
1998
89views more  SIAMDM 1998»
13 years 4 months ago
String Noninclusion Optimization Problems
For every string inclusion relation there are two optimization problems: find a longest string included in every string of a given finite language, and find a shortest string in...
Anatoly R. Rubinov, Vadim G. Timkovsky
ACL
2009
13 years 2 months ago
A Succinct N-gram Language Model
Efficient processing of tera-scale text data is an important research topic. This paper proposes lossless compression of Ngram language models based on LOUDS, a succinct data stru...
Taro Watanabe, Hajime Tsukada, Hideki Isozaki