Results 41 to 50 of about 2,616,817 (282)

The “Art of Trellis Decoding” Is Fixed-Parameter Tractable [PDF]

open access: yesIEEE Transactions on Information Theory, 2017
50 pages. Accepted to SODA 2016 under the title "constructive algorithms for path-width of matroids". We added several figures to improve its presentation. We found a mistake in the proof of Lemma 3.24 of the previous version.
Jisu Jeong   +2 more
openaire   +3 more sources

Parameterized Algorithms for (r,l)-Partization

open access: yesJournal of Graph Algorithms and Applications, 2013
We consider the (r,l)-Partization problem of finding a set of at most k vertices whose deletion results in a graph that can be partitioned into r independent sets and l cliques.
R. Krithika, N. Narayanaswamy
doaj   +1 more source

On Polynomial-Time Decidability of k-Negations Fragments of First-Order Theories [PDF]

open access: yesLogical Methods in Computer Science
This paper introduces a generic framework that provides sufficient conditions for guaranteeing polynomial-time decidability of fixed-negation fragments of first-order theories that adhere to certain fixed-parameter tractability requirements.
Christoph Haase   +2 more
doaj   +1 more source

Bounded fixed-parameter tractability and log2n nondeterministic bits [PDF]

open access: yes, 2006
Motivated by recent results showing that there are natural parameterized problems that are fixed-parameter tractable, but can only be solved by fixed-parameter tractable algorithms the running time of which depends nonelementarily on the parameter, we ...
Flum, Jörg, Weyer, Mark, Grohe, Martin
core   +1 more source

On the Fixed-Parameter Tractability of Capacitated Clustering

open access: yesCoRR, 2019
We study the complexity of the classic capacitated k-median and k-means problems parameterized by the number of centers, k. These problems are notoriously difficult since the best known approximation bound for high dimensional Euclidean space and general metric space is $Θ(\log k)$ and it remains a major open problem whether a constant factor exists ...
Cohen-Addad, Vincent, Li, Jason
openaire   +7 more sources

Parameterized Complexity of 1-Planarity

open access: yesJournal of Graph Algorithms and Applications, 2018
We consider the problem of drawing graphs with at most one crossing per edge. These drawings, and the graphs that can be drawn in this way, are called $1$-planar.
Michael Bannister   +2 more
doaj   +1 more source

Scheduling Meets Fixed-Parameter Tractability

open access: yesCoRR, 2013
Fixed-parameter tractability analysis and scheduling are two core domains of combinatorial optimization which led to deep understanding of many important algorithmic questions. However, even though fixed-parameter algorithms are appealing for many reasons, no such algorithms are known for many fundamental scheduling problems.
Matthias Mnich, Andreas Wiese
openaire   +3 more sources

Colored Hypergraph Isomorphism is Fixed Parameter Tractable [PDF]

open access: yesAlgorithmica, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Arvind, V.   +3 more
openaire   +5 more sources

The maximum 2-edge-colorable subgraph problem and its fixed-parameter tractability

open access: yesJournal of Graph Algorithms and Applications
A $k$-edge-coloring of a graph is an assignment of colors $\{1,...,k\}$ to edges of the graph such that adjacent edges receive different colors. In the maximum $k$-edge-colorable subgraph problem we are given a graph and an integer $k$, the goal is to ...
Vahan Mkrtchyan
doaj   +1 more source

Treewidth of display graphs: bounds, brambles and applications

open access: yesJournal of Graph Algorithms and Applications, 2019
Phylogenetic trees and networks are leaf-labelled graphs used to model evolution. Display graphs are created by identifying common leaf labels in two or more phylogenetic trees or networks.
Remie Janssen   +4 more
doaj   +1 more source

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