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» On the Expressive Power of QLTL
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COOPIS
2000
IEEE
15 years 10 months ago
Workflow Modeling Using Proclets
The focus of traditional workflow management systems is on control flow within one process definition, that describes how a single case (i.e., workflow instance) is handled in isol...
Wil M. P. van der Aalst, Paulo Barthelmess, Claren...
ESOP
2000
Springer
15 years 10 months ago
Improving the Representation of Infinite Trees to Deal with Sets of Trees
In order to deal efficiently with infinite regular trees (or other pointed graph structures), we give new algorithms to store such structures. The trees are stored in such a way th...
Laurent Mauborgne
DASFAA
2010
IEEE
165views Database» more  DASFAA 2010»
15 years 10 months ago
Towards an Algebraic Framework for Querying Inductive Databases
Abstract. In this paper, we present a theoretical foundation for querying inductive databases, which can accommodate disparate mining tasks. We present a data mining algebra includ...
Hong-Cheu Liu, Aditya Ghose, John Zeleznikow
CDC
2009
IEEE
166views Control Systems» more  CDC 2009»
15 years 9 months ago
Stable inversion-based robust tracking control in DC-DC nonlinear switched converters
— This article studies the robust tracking control problem in nonminimum phase DC-DC nonlinear switched power converters. The proposed procedure introduces a stable inversion-bas...
Josep M. Olm, Xavier Ros, Yuri B. Shtessel
CSL
2008
Springer
15 years 8 months ago
Characterization of Logics over Ranked Tree Languages
We study the expressive power of the logics EF + F-1 , 2 and boolean combinations of 1 over ranked trees. In particular, we provide effective characterizations of those three logic...
Thomas Place