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CSDA
2007
115views more  CSDA 2007»
15 years 5 months ago
Algorithms for compact letter displays: Comparison and evaluation
Multiple pairwise comparisons are one of the most frequent tasks in applied statistics. In this context, letter displays may be used for a compact presentation of results of multi...
Jens Gramm, Jiong Guo, Falk Hüffner, Rolf Nie...
170
Voted
FOCS
1998
IEEE
15 years 9 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
ISAAC
2004
Springer
137views Algorithms» more  ISAAC 2004»
15 years 10 months ago
The Polymatroid Steiner Problems
The Steiner tree problem asks for a minimum cost tree spanning a given set of terminals S ⊆ V in a weighted graph G = (V, E, c), c : E → R+ . In this paper we consider a genera...
Gruia Calinescu, Alexander Zelikovsky
JDA
2007
129views more  JDA 2007»
15 years 4 months ago
Approximating the k-traveling repairman problem with repairtimes
Given an undirected graph G = (V,E) and a source vertex s ∈ V , the k-traveling repairman (KTR) problem, also known as the minimum latency problem, asks for k tours, each starti...
Raja Jothi, Balaji Raghavachari
FUIN
2007
134views more  FUIN 2007»
15 years 5 months ago
Complexity Issues in Multiagent Logics
Abstract. Our previous research presents a methodology of cooperative problem solving for beliefdesire-intention (BDI) systems, based on a complete formal theory called TEAMLOG. Th...
Marcin Dziubinski, Rineke Verbrugge, Barbara Dunin...