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IDEAS
2007
IEEE
148views Database» more  IDEAS 2007»
14 years 1 months ago
Boundedness of Regular Path Queries in Data Integration Systems
In this paper we study the problem of deciding whether a regular path query over views in data-integration systems can be re-expressed without recursion. The problem becomes chall...
Gösta Grahne, Alex Thomo
CAI
2007
Springer
14 years 1 months ago
Learning Deterministically Recognizable Tree Series - Revisited
Abstract. We generalize a learning algorithm originally devised for deterministic all-accepting weighted tree automata (wta) to the setting of arbitrary deterministic wta. The lear...
Andreas Maletti
CEEMAS
2007
Springer
14 years 1 months ago
Simulating a Human Cooperative Problem Solving
Abstract. We are interested in understanding and simulating how humans elaborate plans in situations where knowledge is incomplete and how they interact to obtain missing informati...
Alexandre Pauchet, Amal El Fallah-Seghrouchni, Nat...
CPAIOR
2007
Springer
14 years 1 months ago
Modeling the Regular Constraint with Integer Programming
Many optimisation problems contain substructures involving constraints on sequences of decision variables. Such constraints can be very complex to express with mixed integer progra...
Marie-Claude Côté, Bernard Gendron, L...
LICS
2006
IEEE
14 years 1 months ago
Two-Variable Logic on Words with Data
— In a data word each position carries a label from a finite alphabet and a data value from some infinite domain. These models have been already considered in the realm of semi...
Mikolaj Bojanczyk, Anca Muscholl, Thomas Schwentic...