中文
相关论文

相关论文: A Technique for Obtaining True Approximations for …

200 篇论文

We study the problem of fairness in k-centers clustering on data with disjoint demographic groups. Specifically, this work proposes a variant of fairness which restricts each group's number of centers with both a lower bound…

数据结构与算法 · 计算机科学 2022-07-26 Huy Lê Nguyen , Thy Nguyen , Matthew Jones

The problem of constrained $k$-center clustering has attracted significant attention in the past decades. In this paper, we study balanced $k$-center cluster where the size of each cluster is constrained by the given lower and upper bounds.…

计算几何 · 计算机科学 2017-04-11 Hu Ding

In this work, we study diversity-aware clustering problems where the data points are associated with multiple attributes resulting in intersecting groups. A clustering solution needs to ensure that the number of chosen cluster centers from…

数据结构与算法 · 计算机科学 2025-05-21 Suhas Thejaswi , Ameet Gadekar , Bruno Ordozgoiti , Aristides Gionis

Recent developments in approximate counting have made startling progress in developing fast algorithmic methods for approximating the number of solutions to constraint satisfaction problems (CSPs) with large arities, using connections to…

计算复杂性 · 计算机科学 2022-08-23 Andreas Galanis , Heng Guo , Jiaheng Wang

Fair clustering is a constrained variant of clustering where the goal is to partition a set of colored points, such that the fraction of points of any color in every cluster is more or less equal to the fraction of points of this color in…

数据结构与算法 · 计算机科学 2020-07-21 Sayan Bandyapadhyay , Fedor V. Fomin , Kirill Simonov

There is a large discrepancy in our understanding of uncapacitated and capacitated versions of network location problems. This is perhaps best illustrated by the classical k-center problem: there is a simple tight 2-approximation algorithm…

数据结构与算法 · 计算机科学 2013-04-11 Hyung-Chan An , Aditya Bhaskara , Ola Svensson

We introduce a novel problem for diversity-aware clustering. We assume that the potential cluster centers belong to a set of groups defined by protected attributes, such as ethnicity, gender, etc. We then ask to find a minimum-cost…

数据结构与算法 · 计算机科学 2022-10-25 Suhas Thejaswi , Bruno Ordozgoiti , Aristides Gionis

In this paper, we study correlation clustering under fairness constraints. Fair variants of $k$-median and $k$-center clustering have been studied recently, and approximation algorithms using a notion called fairlet decomposition have been…

数据结构与算法 · 计算机科学 2020-03-04 Sara Ahmadian , Alessandro Epasto , Ravi Kumar , Mohammad Mahdian

In the k-center problem, given a metric space V and a positive integer k, one wants to select k elements (centers) of V and an assignment from V to centers, minimizing the maximum distance between an element of V and its assigned center.…

数据结构与算法 · 计算机科学 2016-08-08 Cristina G. Fernandes , Samuel P. de Paula , Lehilton L. C. Pedrosa

The problem of constrained clustering has attracted significant attention in the past decades. In this paper, we study the balanced $k$-center, $k$-median, and $k$-means clustering problems where the size of each cluster is constrained by…

计算几何 · 计算机科学 2018-09-11 Hu Ding

We study the computational problem of computing a fair means clustering of discrete vectors, which admits an equivalent formulation as editing a colored matrix into one with few distinct color-balanced rows by changing at most $k$ values.…

数据结构与算法 · 计算机科学 2025-12-04 Robert Ganian , Hung P. Hoang , Simon Wietheger

In the Non-Uniform $k$-Center problem, a generalization of the famous $k$-center clustering problem, we want to cover the given set of points in a metric space by finding a placement of balls with specified radii. In $t$-NU$k$C Problem, we…

数据结构与算法 · 计算机科学 2021-11-16 Tanmay Inamdar , Kasturi Varadarajan

A set of points $P$ in a metric space and a constant integer $k$ are given. The $k$-center problem finds $k$ points as centers among $P$, such that the maximum distance of any point of $P$ to their closest centers $(r)$ is minimized.…

数据结构与算法 · 计算机科学 2019-04-25 Sepideh Aghamolaei , Mohammad Ghodsi

In the Max-k-diameter problem, we are given a set of points in a metric space, and the goal is to partition the input points into k parts such that the maximum pairwise distance between points in the same part of the partition is minimized.…

计算几何 · 计算机科学 2024-04-08 Henry Fleischmann , Kyrylo Karlov , Karthik C. S. , Ashwin Padaki , Stepan Zharkov

We incorporate group fairness into the algorithmic centroid clustering problem, where $k$ centers are to be located to serve $n$ agents distributed in a metric space. We refine the notion of proportional fairness proposed in [Chen et al.,…

计算机科学与博弈论 · 计算机科学 2022-04-01 Bo Li , Lijun Li , Ankang Sun , Chenhao Wang , Yingfan Wang

We study the maximization version of the fundamental graph coloring problem. Here the goal is to color the vertices of a k-colorable graph with k colors so that a maximum fraction of edges are properly colored (i.e. their endpoints receive…

计算复杂性 · 计算机科学 2015-05-14 Venkatesan Guruswami , Ali Kemal Sinop

We study the fair variant of the classic $k$-median problem introduced by Chierichetti et al. [2017]. In the standard $k$-median problem, given an input pointset $P$, the goal is to find $k$ centers $C$ and assign each input point to one of…

数据结构与算法 · 计算机科学 2019-06-12 Arturs Backurs , Piotr Indyk , Krzysztof Onak , Baruch Schieber , Ali Vakilian , Tal Wagner

In this paper we consider a generalization of the classical k-center problem with capacities. Our goal is to select k centers in a graph, and assign each node to a nearby center, so that we respect the capacity constraints on centers. The…

数据结构与算法 · 计算机科学 2012-08-16 Marek Cygan , MohammadTaghi Hajiaghayi , Samir Khuller

The k-means objective is arguably the most widely-used cost function for modeling clustering tasks in a metric space. In practice and historically, k-means is thought of in a continuous setting, namely where the centers can be located…

计算复杂性 · 计算机科学 2020-10-08 Vincent Cohen-Addad , Karthik C. S. , Euiwoong Lee

The fair $k$-median problem is one of the important clustering problems. The current best approximation ratio is 4.675 for this problem with 1-fair violation, which was proposed by Bercea et al. [APPROX-RANDOM'2019]. As far as we know,…

数据结构与算法 · 计算机科学 2022-02-15 Di Wu , Qilong Feng , Jianxin Wang