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ICTAC
2007
Springer
14 years 4 months ago
On the Expressive Power of QLTL
LTL cannot express the whole class of ω-regular languages and several extensions have been proposed. Among them, Quantified propositional Linear Temporal Logic (QLTL), proposed b...
Zhilin Wu
IJAC
2007
99views more  IJAC 2007»
13 years 10 months ago
Normalized Expressions and Finite Automata
There exist two well-known quotients of the position automaton of a regular expression. The first one, called the equation automaton, has first been introduced by Mirkin from th...
Jean-Marc Champarnaud, Faissal Ouardi, Djelloul Zi...
VLDB
1989
ACM
97views Database» more  VLDB 1989»
14 years 2 months ago
Finding Regular Simple Paths in Graph Databases
We consider the following problem: given a labelled directedgraphG anda regularexpressionR, find all pairs of nodesconnectedby a simplepathsuchthattheconcatenationof thelabelsalon...
Alberto O. Mendelzon, Peter T. Wood
FCT
2001
Springer
14 years 2 months ago
Prediction-Preserving Reducibility with Membership Queries on Formal Languages
This paper presents the prediction-preserving reducibility with membership queries (pwm-reducibility) on formal languages, in particular, simple CFGs and finite unions of regular ...
Kouichi Hirata, Hiroshi Sakamoto
ICONIP
2004
13 years 11 months ago
Morozov, Ivanov and Tikhonov Regularization Based LS-SVMs
This paper contrasts three related regularization schemes for kernel machines using a least squares criterion, namely Tikhonov and Ivanov regularization and Morozov's discrepa...
Kristiaan Pelckmans, Johan A. K. Suykens, Bart De ...