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108
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PODS
2007
ACM
159views Database» more  PODS 2007»
15 years 11 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
PODC
2003
ACM
15 years 4 months ago
Geometric ad-hoc routing: of theory and practice
All too often a seemingly insurmountable divide between theory and practice can be witnessed. In this paper we try to contribute to narrowing this gap in the field of ad-hoc rout...
Fabian Kuhn, Roger Wattenhofer, Yan Zhang, Aaron Z...
101
Voted
DCC
2002
IEEE
15 years 11 months ago
Globally Optimal Uneven Error-Protected Packetization of Scalable Code Streams
In this paper, we present a family of new algorithms for rate-fidelity optimal packetization of scalable source bit streams with uneven error protection. In the most general settin...
Sorina Dumitrescu, Xiaolin Wu, Zhe Wang
105
Voted
COCO
2001
Springer
149views Algorithms» more  COCO 2001»
15 years 4 months ago
Quantum versus Classical Learnability
Motivated by recent work on quantum black-box query complexity, we consider quantum versions of two wellstudied models of learning Boolean functions: Angluin’s model of exact le...
Rocco A. Servedio, Steven J. Gortler
TCOM
2010
115views more  TCOM 2010»
14 years 10 months ago
QoS Analysis of a Scheduling Policy for Heterogeneous Users Employing AMC Jointly with ARQ
—This paper analyzes the quality of service (QoS) of scheduling algorithms for heterogeneous users in multiuser (MU) wireless systems that take advantage from a crosslayer design...
Mario Poggioni, Luca Rugini, Paolo Banelli