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2008
15 years 8 months ago
Taming the Infinite Chase: Query Answering under Expressive Relational Constraints
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
Andrea Calì, Georg Gottlob, Michael Kifer
COCO
2010
Springer
149views Algorithms» more  COCO 2010»
15 years 7 months ago
Trade-Off Lower Bounds for Stack Machines
—A space bounded Stack Machine is a regular Turing Machine with a read-only input tape, several space bounded read-write work tapes, and an unbounded stack. Stack Machines with a...
Matei David, Periklis A. Papakonstantinou
VAMOS
2010
Springer
15 years 7 months ago
Variability in Time - Product Line Variability and Evolution Revisited
In its basic form, a variability model describes the variations among similar artifacts from a structural point of view. It does not capture any information about when these variat...
Christoph Elsner, Goetz Botterweck, Daniel Lohmann...
128
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ECIS
2004
15 years 7 months ago
The Long Road to being an IS Professional: A Newcomer Perspective
The dot-com boom in the late 1990s attracted vast numbers of undergraduate students into the field of Information Systems (IS) with the promise of being the next "big thing&q...
Kim-Chung Leong, Michael T. K. Tan
ICHIM
2001
104views more  ICHIM 2001»
15 years 7 months ago
The New Norwegian Rock Art Database
The Rock Art Project was set up by the Directorate for Cultural Heritage on behalf of the Norwegian Ministry of the Environment in 1996. The database was initiated within the EU-s...
Wenche Helliksen, Inger Marie Holm-Olsen, Olaug Ha...