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Exploiting $\mathbf{c}$-Closure in Kernelization Algorithms for Graph Problems

Embedded Systems and Applications, 2020
A graph is c-closed if every pair of vertices with at least c common neighbors is adjacent. The c-closure of a graph G is the smallest number such that G is c-closed. Fox et al.
T. Koana   +2 more
semanticscholar   +1 more source

Approximate Turing Kernelization for Problems Parameterized by Treewidth

Embedded Systems and Applications, 2020
We extend the notion of lossy kernelization, introduced by Lokshtanov et al. [STOC 2017], to approximate Turing kernelization. An $\alpha$-approximate Turing kernel for a parameterized optimization problem is a polynomial-time algorithm that, when given ...
Eva-Maria C. Hols   +2 more
semanticscholar   +1 more source

The NBNN kernel

2011 International Conference on Computer Vision, 2011
Naive Bayes Nearest Neighbor (NBNN) has recently been proposed as a powerful, non-parametric approach for object classification, that manages to achieve remarkably good results thanks to the avoidance of a vector quantization step and the use of image-to-class comparisons, yielding good generalization.
Tinne Tuytelaars   +3 more
openaire   +2 more sources

DiJiang: Efficient Large Language Models through Compact Kernelization

International Conference on Machine Learning
In an effort to reduce the computational load of Transformers, research on linear attention has gained significant momentum. However, the improvement strategies for attention mechanisms typically necessitate extensive retraining, which is impractical for
Hanting Chen   +4 more
semanticscholar   +1 more source

Boundaried Kernelization

International Workshop on Graph-Theoretic Concepts in Computer Science
The notion of a (polynomial) kernelization from parameterized complexity is a well-studied model for efficient preprocessing for hard computational problems.
Leonid Antipov, Stefan Kratsch
semanticscholar   +1 more source

On polynomial kernelization for Stable Cutset

International Workshop on Graph-Theoretic Concepts in Computer Science
A stable cutset in a graph $G$ is a set $S\subseteq V(G)$ such that vertices of $S$ are pairwise non-adjacent and such that $G-S$ is disconnected, i.e., it is both stable (or independent) set and a cutset (or separator). Unlike general cutsets, it is $NP$
Stefan Kratsch, Van Bang Le
semanticscholar   +1 more source

Partitionable Kernels for Mapping Kernels

2011 IEEE 11th International Conference on Data Mining, 2011
Many of tree kernels in the literature are designed tanking advantage of the mapping kernel framework. The most important advantage of using this framework is that we have a strong theorem to examine positive definiteness of the resulting tree kernels.
openaire   +1 more source

Kernelization and approximation of distance-r independent sets on nowhere dense graphs

European journal of combinatorics (Print), 2018
For a positive integer $r$, a distance-$r$ independent set in an undirected graph $G$ is a set $I\subseteq V(G)$ of vertices pairwise at distance greater than $r$, while a distance-$r$ dominating set is a set $D\subseteq V(G)$ such that every vertex of ...
MichaƂ Pilipczuk, S. Siebertz
semanticscholar   +1 more source

Multiple kernel clustering with corrupted kernels

Neurocomputing, 2017
Abstract Multiple kernel clustering (MKC) algorithms usually learn an optimal kernel from a group of pre-specified base kernels to improve the clustering performance. However, we observe that existing MKC algorithms do not well handle the situation that kernels are corrupted with noise and outliers.
Teng Li 0010   +4 more
openaire   +1 more source

Kernel-based MinMax clustering methods with kernelization of the metric and auto-tuning hyper-parameters

Neurocomputing, 2019
This paper proposes kernel-based MinMax clustering methods with kernelization of the metric and auto-tuning hyper-parameters which learn the variable weights and adjust the cluster weights automatically.
Junyan Liu   +4 more
semanticscholar   +1 more source

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