On the cost of essentially fair clusterings

IO Bercea, M Groß, S Khuller, A Kumar… - arXiv preprint arXiv …, 2018 - arxiv.org
Clustering is a fundamental tool in data mining. It partitions points into groups (clusters) and
may be used to make decisions for each point based on its group. However, this process …

A survey on approximation in parameterized complexity: Hardness and algorithms

AE Feldmann, E Lee, P Manurangsi - Algorithms, 2020 - mdpi.com
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 …

On the fixed-parameter tractability of capacitated clustering

V Cohen-Addad, J Li - arXiv preprint arXiv:2208.14129, 2022 - arxiv.org
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 …

On Uniform Capacitated k-Median Beyond the Natural LP Relaxation

S Li - ACM Transactions on Algorithms (TALG), 2017 - dl.acm.org
In this article, we study the uniform capacitated k-median (CKM) problem. In the problem, we
are given a set F of potential facility locations, a set C of clients, a metric d over F∪ C, an …

A Technique for Obtaining True Approximations for k-Center with Covering Constraints

G Anegg, H Angelidakis, A Kurpisz… - … conference on integer …, 2020 - Springer
There has been a recent surge of interest in incorporating fairness aspects into classical
clustering problems. Two recently introduced variants of the k-Center problem in this spirit …

Cloudlet placement and minimum-delay routing in cloudlet computing

J Meng, W Shi, H Tan, X Li - 2017 3rd international conference …, 2017 - ieeexplore.ieee.org
Mobile applications becomes increasingly computation intensive, while the computing
capability of portable mobile devices is limited. Although cloud computing is emerging as a …

Constant factor FPT approximation for capacitated k-median

M Adamczyk, J Byrka, J Marcinkowski… - arXiv preprint arXiv …, 2018 - arxiv.org
Capacitated k-median is one of the few outstanding optimization problems for which the
existence of a polynomial time constant factor approximation algorithm remains an open …

Constant Approximation for Capacitated -Median with -Capacity Violation

G Demirci, S Li - arXiv preprint arXiv:1603.02324, 2016 - arxiv.org
We study the Capacitated k-Median problem for which existing constant-factor
approximation algorithms are all pseudo-approximations that violate either the capacities or …

A technique for obtaining true approximations for k-center with covering constraints

G Anegg, H Angelidakis, A Kurpisz… - Mathematical …, 2022 - Springer
There has been a recent surge of interest in incorporating fairness aspects into classical
clustering problems. Two recently introduced variants of the k-Center problem in this spirit …

Generalized center problems with outliers

D Chakrabarty, M Negahbani - ACM Transactions on Algorithms (TALG), 2019 - dl.acm.org
We study the ℱ-center problem with outliers: Given a metric space (X, d), a general down-
closed family ℱ of subsets of X, and a parameter m, we need to locate a subset S∈ ℱ of …