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CORR
2010
Springer
139views Education» more  CORR 2010»
15 years 2 months ago
A proof Procedure for Testing Membership in Regular Expressions
We propose an algorithm that tests membership for regular expressions and show that the algorithm is correct. This algorithm is written in the style of a sequent proof system. The...
Keehang Kwon, Hong Pyo Ha, Jiseung Kim
WWW
2001
ACM
16 years 3 months ago
Indexing the Indonesian Web: Language Identification and Miscellaneous Issues
Information retrieval tools and search engines have mainly been leveraging research results and technologies developed for the English language. In this paper we report the issues...
Stéphane Bressan, Vinsensius Berlian Vega S...
CLEF
2000
Springer
15 years 6 months ago
Automatic Language-Specific Stemming in Information Retrieval
We employ Automorphology, an MDL-based algorithm that determines the suffixes present in a language-sample with no prior knowledge of the language in question, and describe our exp...
John A. Goldsmith, Derrick Higgins, Svetlana Sogla...
COCO
2005
Springer
123views Algorithms» more  COCO 2005»
15 years 8 months ago
If NP Languages are Hard on the Worst-Case Then It is Easy to Find Their Hard Instances
We prove that if NP ⊆ BPP, i.e., if SAT is worst-case hard, then for every probabilistic polynomial-time algorithm trying to decide SAT, there exists some polynomially samplable ...
Dan Gutfreund, Ronen Shaltiel, Amnon Ta-Shma
SIGMOD
1993
ACM
93views Database» more  SIGMOD 1993»
15 years 6 months ago
Design and Implementation of the Glue-Nail Database System
We describe the design and implementation of the Glue-Nail database system. The Nail language is a purely declarative query language; Glue is a procedural language used for nonque...
Marcia A. Derr, Shinichi Morishita, Geoffrey Phipp...