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Parameterized complexity theory

Jörg Flum, +1 more
TLDR
Fixed-Parameter Tractability.
Abstract
Fixed-Parameter Tractability.- Reductions and Parameterized Intractability.- The Class W[P].- Logic and Complexity.- Two Fundamental Hierarchies.- The First Level of the Hierarchies.- The W-Hierarchy.- The A- Hierarchy.- Kernelization and Linear Programming Techniques.- The Automata-Theoretic Approach.- Tree Width.- Planarity and Bounded Local Tree Width.- Homomorphisms and Embeddings.- Parameterized Counting Problems.- Bounded Fixed-Parameter Tractability.- Subexponential Fixed-Parameter Tractability.- Appendix, Background from Complexity Theory.- References.- Notation.- Index.

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Journal ArticleDOI

Faster Parameterized Algorithms Using Linear Programming

TL;DR: It is argued that combining previously known preprocessing rules with the most straightforward branching algorithm yields an O*(2.618k) algorithm for the problem, and a kernel is obtained for the standard parameterization of Vertex Cover with at most 2k − clog k vertices, simpler than previously known kernels achieving the same size bound.
Proceedings ArticleDOI

Known algorithms on graphs of bounded treewidth are probably optimal

TL;DR: In this paper, the authors obtained lower bounds on the running time of algorithms for solving problems on graphs of bounded treewidth, and proved the results under the Strong Exponential Time Hypothesis of Impagliazzo and Paturi, assuming that SAT cannot be solved in (2 - ∈)nmO(1) time.
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A survey on algorithmic aspects of modular decomposition

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Complexity of consistent query answering in databases under cardinality-based and incremental repair semantics

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Journal ArticleDOI

Algorithms for propositional model counting

TL;DR: Algorithms for the propositional model counting problem #SAT utilize tree decompositions of certain graphs associated with the given CNF formula, including primal, dual, and incidence graphs.