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» On the Complexity of Computing Evolutionary Trees
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CORR
2006
Springer
88views Education» more  CORR 2006»
14 years 10 months ago
On Typechecking Top-Down XML Tranformations: Fixed Input or Output Schemas
Typechecking consists of statically verifying whether the output of an XML transformation always conforms to an output type for documents satisfying a given input type. In this ge...
Wim Martens, Frank Neven, Marc Gyssens
TON
2002
144views more  TON 2002»
14 years 9 months ago
Algorithms for provisioning virtual private networks in the hose model
Virtual Private Networks (VPNs) provide customers with predictable and secure network connections over a shared network. The recently proposed hose model for VPNs allows for great...
Amit Kumar, Rajeev Rastogi, Abraham Silberschatz, ...
FOCS
1998
IEEE
15 years 2 months ago
The Complexity of Acyclic Conjunctive Queries
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
Georg Gottlob, Nicola Leone, Francesco Scarcello
ICDT
2010
ACM
141views Database» more  ICDT 2010»
15 years 2 months ago
The Complexity of Rooted Phylogeny problems
Several computational problems in phylogenetic reconstruction can be formulated as restrictions of the following general problem: given a formula in conjunctive normal form where ...
Manuel Bodirsky, Jens K. Mueller
EVOW
2005
Springer
15 years 3 months ago
Convergence Synthesis of Dynamic Frequency Modulation Tones Using an Evolution Strategy
This paper reports on steps that have been taken to enhance previously presented evolutionary sound matching work. In doing so, the convergence characteristics are shown to provide...
Thomas J. Mitchell, Anthony G. Pipe