Simplex range searching and its variants: A review

PK Agarwal - A Journey Through Discrete Mathematics: A Tribute to …, 2017 - Springer
A central problem in computational geometry, range searching arises in many applications,
and numerous geometric problems can be formulated in terms of range searching. A typical …

Range searching

PK Agarwal - Handbook of discrete and computational geometry, 2017 - taylorfrancis.com
A central problem in computational geometry, range searching arises in many applications,
and a variety of geometric problems can be formulated as range-searching problems. A …

Data structures for categorical path counting queries

M He, S Kazi - Theoretical Computer Science, 2022 - Elsevier
Consider an ordinal tree T on n nodes, each of which is assigned a category from an
alphabet [σ]={1, 2,…, σ}. We preprocess the tree T in order to support categorical path …

Further results on colored range searching

TM Chan, Q He, Y Nekrich - arXiv preprint arXiv:2003.11604, 2020 - arxiv.org
We present a number of new results about range searching for colored (or" categorical")
data: 1. For a set of $ n $ colored points in three dimensions, we describe randomized data …

[PDF][PDF] Better data structures for colored orthogonal range reporting

TM Chan, Y Nekrich - Proc. ACM-SIAM Sympos. Discrete Algorithms …, 2020 - par.nsf.gov
Range searching on categorical, or “colored”, data has been studied extensively for over two
decades. In this paper, we obtain the current best results for perhaps the most basic, and …

[PDF][PDF] Succinct color searching in one dimension

H El-Zein, JI Munro, Y Nekrich - 28th International Symposium on …, 2017 - drops.dagstuhl.de
In this paper we study succinct data structures for one-dimensional color reporting and color
counting problems. We are given a set of n points with integer coordinates in the range [1, m] …

Categorical range reporting with frequencies

A Ganguly, JI Munro, Y Nekrich, R Shah… - … on Database Theory …, 2019 - drops.dagstuhl.de
In this paper, we consider a variant of the color range reporting problem called color
reporting with frequencies. Our goal is to pre-process a set of colored points into a data …

Range Longest Increasing Subsequence and its Relatives: Beating Quadratic Barrier and Approaching Optimality

S Rahul - arXiv preprint arXiv:2404.04795, 2024 - arxiv.org
In this work, we present a plethora of results for the range longest increasing subsequence
problem (Range-LIS) and its variants. The input to Range-LIS is a sequence $\mathcal {S} …

Recommending Popular Locations Based on Collected Trajectories

S Ziaei, MR Bidgoli, AG Rudi - 2022 12th International …, 2022 - ieeexplore.ieee.org
Data gathered from location-aware devices, such as GPS, create opportunities for
researchers to extract interesting information from the movement of objects. Popular places …

I/O-optimal categorical 3-sided skyline queries

A Ganguly, D Gibney, SV Thankachan… - Theoretical Computer …, 2021 - Elsevier
The skyline of a set of two-dimensional points is the subset of points not dominated by any
other point. In this paper, we consider a set of two-dimensional points (in rank space) that …