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ACS
2007
15 years 6 months ago
A Topologist's View of Chu Spaces
Abstract. For a symmetric monoidal-closed category X and any object K, the category of K-Chu spaces is small-topological over X and small cotopological over Xop . Its full subcateg...
Eraldo Giuli, Walter Tholen
AI
2008
Springer
15 years 6 months ago
Analysing inconsistent first-order knowledgebases
It is well-known that knowledgebases may contain inconsistencies. We provide a framework of measures, based on a first-order four-valued logic, to quantify the inconsistency of a ...
John Grant, Anthony Hunter
ALGORITHMICA
2008
56views more  ALGORITHMICA 2008»
15 years 6 months ago
Eliminating Cycles in the Discrete Torus
In this paper we consider the following question: how many vertices of the discrete torus must be deleted so that no topologically nontrivial cycles remain? We look at two differe...
Béla Bollobás, Guy Kindler, Imre Lea...
CORR
2010
Springer
153views Education» more  CORR 2010»
15 years 6 months ago
Towards an Efficient Tile Matrix Inversion of Symmetric Positive Definite Matrices on Multicore Architectures
The algorithms in the current sequential numerical linear algebra libraries (e.g. LAPACK) do not parallelize well on multicore architectures. A new family of algorithms, the tile a...
Emmanuel Agullo, Henricus Bouwmeester, Jack Dongar...
FGCS
2008
127views more  FGCS 2008»
15 years 6 months ago
Monte Carlo methods for matrix computations on the grid
Many scientific and engineering applications involve inverting large matrices or solving systems of linear algebraic equations. Solving these problems with proven algorithms for d...
Simon Branford, Cihan Sahin, Ashish Thandavan, Chr...