[HTML][HTML] A survey on approximation in parameterized complexity: Hardness and algorithms
Parameterization and approximation are two popular ways of coping with NP-hard
problems. More recently, the two have also been combined to derive many interesting …
problems. More recently, the two have also been combined to derive many interesting …
A Note on Max -Vertex Cover: Faster FPT-AS, Smaller Approximate Kernel and Improved Approximation
P Manurangsi - arXiv preprint arXiv:1810.03792, 2018 - arxiv.org
In Maximum $ k $-Vertex Cover (Max $ k $-VC), the input is an edge-weighted graph $ G $
and an integer $ k $, and the goal is to find a subset $ S $ of $ k $ vertices that maximizes …
and an integer $ k $, and the goal is to find a subset $ S $ of $ k $ vertices that maximizes …
A Parameterized Approximation Scheme for Min -Cut
In the Min k-Cut problem, the input consists of an edge weighted graph G and an integer k,
and the task is to partition the vertex set into k nonempty sets, such that the total weight of the …
and the task is to partition the vertex set into k nonempty sets, such that the total weight of the …
FPT-approximation for FPT problems
Over the past decade, many results have focused on the design of parameterized
approximation algorithms for W [1]-hard problems. However, there are fundamental …
approximation algorithms for W [1]-hard problems. However, there are fundamental …
Hypergraph k-cut in randomized polynomial time
For a fixed integer k ≥ 2 k≥ 2, the hypergraph k-cut problem asks for a smallest subset of
hyperedges whose removal leads to at least k connected components in the remaining …
hyperedges whose removal leads to at least k connected components in the remaining …
LP Relaxation and Tree Packing for Minimum -Cut
Karger used spanning tree packings DR Karger, J. ACM, 47 (2000), pp. 46--76 to derive a
near linear-time randomized algorithm for the global minimum cut problem as well as a …
near linear-time randomized algorithm for the global minimum cut problem as well as a …
Maximizing coverage while ensuring fairness: A tale of conflicting objectives
Ensuring fairness in computational problems has emerged as a key topic during recent
years, buoyed by considerations for equitable resource distributions and social justice. It is …
years, buoyed by considerations for equitable resource distributions and social justice. It is …
The Karger-Stein algorithm is optimal for k-cut
In the k-cut problem, we are given an edge-weighted graph and want to find the least-weight
set of edges whose deletion breaks the graph into k connected components. Algorithms due …
set of edges whose deletion breaks the graph into k connected components. Algorithms due …
[PDF][PDF] Parameterized Inapproximability Hypothesis under Exponential Time Hypothesis
The Parameterized Inapproximability Hypothesis (PIH) asserts that no fixed parameter
tractable (FPT) algorithm can distinguish a satisfiable CSP instance, parameterized by the …
tractable (FPT) algorithm can distinguish a satisfiable CSP instance, parameterized by the …
Minimum Cut and Minimum k-Cut in Hypergraphs via Branching Contractions
K Fox, D Panigrahi, F Zhang - Proceedings of the Thirtieth Annual ACM-SIAM …, 2019 - SIAM
On hypergraphs with m hyperedges and n vertices, where p denotes the total size of the
hyperedges, we provide the following results: We give an algorithm that runs in Õ (mn 2 k–2) …
hyperedges, we provide the following results: We give an algorithm that runs in Õ (mn 2 k–2) …