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PODS
2010
ACM
187views Database» more  PODS 2010»
14 years 1 months ago
Incremental query evaluation in a ring of databases
This paper approaches the incremental view maintenance problem from an algebraic perspective. We construct a ring of databases and use it as the foundation of the design of a quer...
Christoph Koch
LATA
2009
Springer
14 years 20 days ago
On Parallel Communicating Grammar Systems and Correctness Preserving Restarting Automata
Abstract. This paper contributes to the study of Freely Rewriting Restarting Automata (FRR-automata) and Parallel Communicating Grammar Systems (PCGS) as formalizations of the ling...
Dana Pardubská, Martin Plátek, Fried...
STOC
1994
ACM
125views Algorithms» more  STOC 1994»
14 years 5 days ago
A spectral technique for coloring random 3-colorable graphs (preliminary version)
Let G(3n, p, 3) be a random 3-colorable graph on a set of 3n vertices generated as follows. First, split the vertices arbitrarily into three equal color classes and then choose ev...
Noga Alon, Nabil Kahale
CORR
2010
Springer
95views Education» more  CORR 2010»
13 years 8 months ago
A lower bound for the tree-width of planar graphs with vital linkages
The disjoint paths problem asks, given an graph G and k + 1 pairs of terminals (s0, t0), . . . , (sk, tk), whether there are k + 1 pairwise disjoint paths P0, . . . , Pk, such tha...
Isolde Adler, Philipp Klaus Krause
CORR
2008
Springer
103views Education» more  CORR 2008»
13 years 8 months ago
Generating Random Graphs with Large Girth
We present a simple and efficient algorithm for randomly generating simple graphs without small cycles. These graphs can be used to design high performance Low-Density Parity-Chec...
Mohsen Bayati, Andrea Montanari, Amin Saberi