Optimal (Multiway) Spatial Joins

R Wang, Y Tao - Proceedings of the ACM on Management of Data, 2024 - dl.acm.org
In a spatial join, we are given a constant number k≥ 2 of sets-denoted as R1, R2,..., Rk-
containing axis-parallel rectangles in a 2D space. The objective is to report all k-tuples (r1 …

Two-dimensional range diameter queries

P Davoodi, M Smid, F Van Walderveen - … Arequipa, Peru, April 16-20, 2012 …, 2012 - Springer
Given a set of n points in the plane, range diameter queries ask for the furthest pair of points
in a given axis-parallel rectangular range. We provide evidence for the hardness of …

Finding pairwise intersections inside a query range

M de Berg, J Gudmundsson, AD Mehrabi - Algorithmica, 2018 - Springer
We study the following problem: preprocess a set OO of objects into a data structure that
allows us to efficiently report all pairs of objects from OO that intersect inside an axis-aligned …

[PDF][PDF] Range-aggregate queries for geometric extent problems

P Brass, C Knauer, CS Shin, M Smid, I Vigan - Proceedings of the …, 2013 - Citeseer
Let S be a set of n points in the plane. We present data structures that solve range-
aggregate query problems on three geometric extent measure problems. Using these data …

[HTML][HTML] Finding pairwise intersections of rectangles in a query rectangle

E Oh, HK Ahn - Computational Geometry, 2019 - Elsevier
We consider the following problem: Preprocess a set S of n axis-parallel boxes in R d so that
given a query with an axis-parallel box in R d, the pairs of boxes of S whose intersection …

In-Range Farthest Point Queries and Related Problem in High Dimensions

Z Huang, J Xu - arXiv preprint arXiv:2206.07592, 2022 - arxiv.org
Range-aggregate query is an important type of queries with numerous applications. It aims
to obtain some structural information (defined by an aggregate function $ F (\cdot) $) of the …

[PDF][PDF] Range Query Problems in Planar Computational Geometry: Radius of Smallest Enclosing Disk & Generalized Convex Hull

S Khare - 2024 - web2py.iiit.ac.in
Computational geometry is a branch of computer science which deals with computation of
geometric functions. It has applications in diverse fields such as computer graphics, robotics …

[PDF][PDF] Improved Bounds for Smallest Enclosing Disk Range Queries.

S Khare, J Agarwal, N Moidu, K Srinathan - CCCG, 2014 - cccg.ca
Let S be a set of n points in the plane. We present a method where, using O (n log2 n) time
and space, S can be pre-processed into a data structure such that given an axis-parallel …

[PDF][PDF] Pairwise Triangles Intersections in a Query Rectangle

W Akram, S Saxena - eurocg2024.math.uoi.gr
The range searching problem is one of the most studied problems in computational
geometry. In this paper, we study the following range-searching problem. Given a set of n …

[PDF][PDF] Data structures for analyzing geometric data

AD Mehrabi - 2017 - research.tue.nl
The amount of data that are being generated, collected, and stored is growing rapidly and a
large body of the data are geometric in nature. A clear example of this is in geography …