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» Local Computation: Lower and Upper Bounds
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FOCS
1990
IEEE
13 years 11 months ago
Complexity of Unification in Free Groups and Free Semi-groups
The exponent of periodicity is an important factor in estimates of complexity of word-unification algorithms. We prove that the exponent of periodicity of a minimal solution of a w...
Antoni Koscielski, Leszek Pacholski
KDID
2004
134views Database» more  KDID 2004»
13 years 8 months ago
Theoretical Bounds on the Size of Condensed Representations
Abstract. Recent studies demonstrate the usefulness of condensed representations as a semantic compression technique for the frequent itemsets. Especially in inductive databases, c...
Nele Dexters, Toon Calders
SPAA
1995
ACM
13 years 11 months ago
Parallel Sorting with Limited Bandwidth
We study the problem of sorting on a parallel computer with limited communication bandwidth. By using the PRAM(m) model, where p processors communicate through a globally shared me...
Micah Adler, John W. Byers, Richard M. Karp
TIT
2011
149views more  TIT 2011»
13 years 2 months ago
Network Coding for Computing: Cut-Set Bounds
Abstract—The following network computing problem is considered. Source nodes in a directed acyclic network generate independent messages and a single receiver node computes a tar...
Rathinakumar Appuswamy, Massimo Franceschetti, Nik...
MFCS
2009
Springer
14 years 1 months ago
The Isomorphism Problem for k-Trees Is Complete for Logspace
Abstract. We show that k-tree isomorphism can be decided in logarithmic space by giving a logspace canonical labeling algorithm. This improves over the previous StUL upper bound an...
Johannes Köbler, Sebastian Kuhnert