On the planar two-center problem and circular hulls

H Wang - Discrete & Computational Geometry, 2022 - Springer
Given a set S of n points in the Euclidean plane, the two-center problem is to find two
congruent disks of smallest radius whose union covers all points of S. Previously, Eppstein …

Choice is hard

EM Arkin, A Banik, P Carmi, G Citovsky, MJ Katz… - … on Algorithms and …, 2015 - Springer
Abstract Let P={C_1, C_2, ..., C_n\} be a set of color classes, where each color class C_i
consists of a pair of objects. We focus on two problems in which the objects are points on the …

Algorithms and hardness results for nearest neighbor problems in bicolored point sets

S Banerjee, S Bhore, R Chitnis - … , Buenos Aires, Argentina, April 16-19 …, 2018 - Springer
In the context of computational supervised learning, the primary objective is the classification
of data. Especially, the goal is to provide the system with “training” data and design a …

Stabbing circles for sets of segments in the plane

M Claverol, E Khramtcova, E Papadopoulou… - Algorithmica, 2018 - Springer
Stabbing a set S of n segments in the plane by a line is a well-known problem. In this paper
we consider the variation where the stabbing object is a circle instead of a line. We show …

Optimal algorithm for the planar two-center problem

K Cho, E Oh, H Wang, J Xue - TheoretiCS, 2024 - theoretics.episciences.org
We study a fundamental problem in computational geometry, the planar twocenter problem.
In this problem, the input is a set 𝑆 of 𝑛 points in the plane and the goal is to find two …

[PDF][PDF] Conflict-free Covering.

EM Arkin, A Banik, P Carmi, G Citovsky, MJ Katz… - CCCG, 2015 - Citeseer
Abstract Let P={C1, C2,..., Cn} be a set of color classes, where each color class Ci consists
of a set of points. In this paper, we address a family of covering problems, in which one is …

Selecting and covering colored points

EM Arkin, A Banik, P Carmi, G Citovsky, MJ Katz… - Discrete Applied …, 2018 - Elsevier
Let U be a set of colored objects, where the color of an object is an integer between 1 and n.
Let P={C 1,…, C n} be the partition of U into color classes, ie, the set C i consists of all …

Farthest color Voronoi diagrams: Complexity and algorithms

I Mantas, E Papadopoulou, V Sacristán… - … American symposium on …, 2020 - Springer
The farthest-color Voronoi diagram (FCVD) is a farthest-site Voronoi structure defined on a
family PP of m point-clusters in the plane, where the total number of points is n. The FCVD …

Parameterized complexity of geometric covering problems having conflicts

A Banik, F Panolan, V Raman, V Sahlot, S Saurabh - Algorithmica, 2020 - Springer
The input for the Geometric Coverage problem consists of a pair\varSigma=(P, R) Σ=(P, R),
where P is a set of points in R^ d R d and RR is a set of subsets of P defined by the …

On geometric prototype and applications

H Ding, M Liu - arxiv preprint arxiv:1804.09655, 2018 - arxiv.org
In this paper, we propose to study a new geometric optimization problem called" geometric
prototype" in Euclidean space. Given a set of patterns, where each pattern is represented by …