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Parameterized Complexity of Equitable Coloring [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
A graph on $n$ vertices is equitably $k$-colorable if it is $k$-colorable and every color is used either $\left\lfloor n/k \right\rfloor$ or $\left\lceil n/k \right\rceil$ times.
Guilherme de C. M. Gomes   +2 more
doaj   +6 more sources

Model-Checking Problems as a Basis for Parameterized Intractability [PDF]

open access: yesLogical Methods in Computer Science, 2005
Most parameterized complexity classes are defined in terms of a parameterized version of the Boolean satisfiability problem (the so-called weighted satisfiability problem). For example, Downey and Fellow's W-hierarchy is of this form.
Joerg Flum, Martin Grohe
doaj   +4 more sources

Parameterized Complexity of Directed Spanner Problems. [PDF]

open access: yesAlgorithmica, 2022
AbstractWe initiate the parameterized complexity study of minimum t-spanner problems on directed graphs. For a positive integer t, a multiplicative t-spanner of a (directed) graph G is a spanning subgraph H such that the distance between any two vertices in H is at most t times the distance between these vertices in G, that is, H keeps the distances in
Fomin FV   +5 more
europepmc   +12 more sources

Optimal Complexity of Parameterized Quantum Circuits [PDF]

open access: yesEntropy
Parameterized quantum circuits are central to the development of variational quantum algorithms in the NISQ era. A key feature of these circuits is their ability to generate an expressive set of quantum states, enabling the approximation of solutions to ...
Guilherme I. Correr   +3 more
doaj   +2 more sources

The parameterized space complexity of model-checking bounded variable first-order logic [PDF]

open access: yesLogical Methods in Computer Science, 2019
The parameterized model-checking problem for a class of first-order sentences (queries) asks to decide whether a given sentence from the class holds true in a given relational structure (database); the parameter is the length of the sentence.
Yijia Chen   +2 more
doaj   +6 more sources

Parameterized Complexity Dichotomy for Steiner Multicut [PDF]

open access: yesJournal of Computer and System Sciences, 2014
The Steiner Multicut problem asks, given an undirected graph G, terminals sets T1,...,Tt $\subseteq$ V(G) of size at most p, and an integer k, whether there is a set S of at most k edges or nodes s.t.
Bringmann, Karl   +3 more
core   +11 more sources

Parameterized Complexity of Eulerian Deletion Problems. [PDF]

open access: yesAlgorithmica, 2014
We study a family of problems where the goal is to make a graph Eulerian, i.e., connected and with all the vertices having even degrees, by a minimum number of deletions. We completely classify the parameterized complexity of various versions: undirected or directed graphs, vertex or edge deletions, with or without the requirement of connectivity, etc.
Cygan M   +4 more
europepmc   +10 more sources

On the parameterized complexity of the median and closest problems under some permutation metrics [PDF]

open access: yesAlgorithms for Molecular Biology
Genome rearrangements are events where large blocks of DNA exchange places during evolution. The analysis of these events is a promising tool for understanding evolutionary genomics, providing data for phylogenetic reconstruction based on genome ...
Luís Cunha, Ignasi Sau, Uéverton Souza
doaj   +2 more sources

Enhancing UAV Object Detection in Low-Light Conditions with ELS-YOLO: A Lightweight Model Based on Improved YOLOv11 [PDF]

open access: yesSensors
Drone-view object detection models operating under low-light conditions face several challenges, such as object scale variations, high image noise, and limited computational resources.
Tianhang Weng, Xiaopeng Niu
doaj   +2 more sources

Parameterized Proof Complexity [PDF]

open access: yescomputational complexity, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dantchev, S., Martin, B., Szeider, S.
openaire   +2 more sources

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