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CSR
2009
Springer
14 years 7 months ago
Simulation of Arithmetical Circuits by Branching Programs with Preservation of Constant Width and Syntactic Multilinearity
Abstract. We study structural properties of restricted width arithmetical circuits. It is shown that syntactically multilinear arithmetical circuits of constant width can be effici...
Maurice J. Jansen, B. V. Raghavendra Rao
CSR
2009
Springer
14 years 7 months ago
Partitioning Graphs into Connected Parts
The 2-Disjoint Connected Subgraphs problem asks if a given graph has two vertex-disjoint connected subgraphs containing prespecified sets of vertices. We show that this problem is...
Pim van 't Hof, Daniël Paulusma, Gerhard J. W...
CSR
2009
Springer
14 years 7 months ago
Canonical Calculi: Invertibility, Axiom Expansion and (Non)-determinism
We apply the semantic tool of non-deterministic matrices to characterize two important properties of canonical Gentzen-type calculi: invertibility of rules and axiom expansion. We ...
Arnon Avron, Agata Ciabattoni, Anna Zamansky
CSR
2009
Springer
14 years 7 months ago
Approximability Distance in the Space of H-Colourability Problems
Tommy Färnqvist, Peter Jonsson, Johan Thapper
CSR
2009
Springer
14 years 7 months ago
The Budgeted Unique Coverage Problem and Color-Coding
Neeldhara Misra, Venkatesh Raman, Saket Saurabh, S...
COMPLEX
2009
Springer
14 years 7 months ago
Transforming Time Series into Complex Networks
We introduce transformations from time series data to the domain of complex networks which allow us to characterise the dynamics underlying the time series in terms of topological ...
Michael Small, Jie Zhang, Xiaoke Xu
COMPLEX
2009
Springer
14 years 7 months ago
Expert Mining for Solving Social Harmony Problems
Jifa Gu, Wuqi Song, Zhengxiang Zhu, Yijun Liu