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In recent years, applications such as real-time simulations, autonomous systems, and video games increasingly demand the processing of complex geometric models under stringent time constraints. Traditional geometric algorithms, including…

计算几何 · 计算机科学 2026-01-30 Roberto Carrasco , Enzo Meneses , Hector Ferrada , Cristobal A. Navarro , Nancy Hitschfeld

Convex hull data structures are fundamental in computational geometry. We study insertion-only data structures, supporting various containment and intersection queries. When $P$ is sorted by $x$- or $y$-coordinate, convex hulls can be…

计算几何 · 计算机科学 2025-08-26 Ivor van der Hoog , Henrik Reinstädtler , Eva Rotenberg

Optimization problems involving minimization of a rank-one convex function over constraints modeling restrictions on the support of the decision variables emerge in various machine learning applications. These problems are often modeled…

最优化与控制 · 数学 2023-11-29 Soroosh Shafiee , Fatma Kılınç-Karzan

Functional constrained optimization is becoming more and more important in machine learning and operations research. Such problems have potential applications in risk-averse machine learning, semisupervised learning, and robust optimization…

最优化与控制 · 数学 2022-01-28 Digvijay Boob , Qi Deng , Guanghui Lan

Writing an uncomplicated, robust, and scalable three-dimensional convex hull algorithm is challenging and problematic. This includes, coplanar and collinear issues, numerical accuracy, performance, and complexity trade-offs. While there are…

计算几何 · 计算机科学 2023-04-11 Ben Kenwright

Finding the convex hull is a fundamental problem in computational geometry. Quickhull is a fast algorithm for finding convex hulls. In this paper, we present VQhull, a fast parallel implementation of Quickhull that exploits vector…

计算几何 · 计算机科学 2025-10-13 Thomas Koopman , Jordy Aaldering , Bernard van Gastel , Sven-Bodo Scholz

Consider the problem of minimizing the sum of a smooth convex function and a separable nonsmooth convex function subject to linear coupling constraints. Problems of this form arise in many contemporary applications including signal…

最优化与控制 · 数学 2014-01-29 Mingyi Hong , Tsung-Hui Chang , Xiangfeng Wang , Meisam Razaviyayn , Shiqian Ma , Zhi-Quan Luo

We consider a general conic mixed-binary set where each homogeneous conic constraint $j$ involves an affine function of independent continuous variables and an epigraph variable associated with a nonnegative function, $f_j$, of common…

Fine-grained visual categorization (FGVC) is an important but challenging task due to high intra-class variances and low inter-class variances caused by deformation, occlusion, illumination, etc. An attention convolutional binary neural…

计算机视觉与模式识别 · 计算机科学 2020-03-17 Ruyi Ji , Longyin Wen , Libo Zhang , Dawei Du , Yanjun Wu , Chen Zhao , Xianglong Liu , Feiyue Huang

In this paper we present a novel algorithm for concurrent lock-free internal binary search trees (BST) and implement a Set abstract data type (ADT) based on that. We show that in the presented lock-free BST algorithm the amortized step…

分布式、并行与集群计算 · 计算机科学 2014-05-12 Bapi Chatterjee , Nhan Nguyen , Philippas Tsigas

Computationally efficient and automated generation of convex hulls is desirable for high throughput materials discovery of thermodynamically stable multi-species crystal structures. A convex hull genetic algorithm is proposed that uses…

材料科学 · 物理学 2024-04-23 Scott Donaldson , Robert A. Lawrence , Matt I. J. Probert

A standard design pattern found in many concurrent data structures, such as hash tables or ordered containers, is alternation of parallelizable sections that incur no data conflicts and critical sections that must run sequentially and are…

分布式、并行与集群计算 · 计算机科学 2021-10-13 Vitaly Aksenov , Daniil Bolotov , Petr Kuznetsov

Single-linkage clustering is a popular form of hierarchical agglomerative clustering (HAC) where the distance between two clusters is defined as the minimum distance between any pair of points across the two clusters. In single-linkage HAC,…

数据结构与算法 · 计算机科学 2025-06-24 Quinten De Man , Laxman Dhulipala , Kishen N Gowda

Chan [JACM, 2010] gave a data structure for maintaining the convex hull of a dynamic set of 3D points under insertions and deletions, supporting extreme-point queries. Subsequent refinements by Kaplan, Mulzer, Roditty, Seiferth, and Sharir…

计算几何 · 计算机科学 2026-02-24 Haitao Wang

This paper evaluates several improvements to the memory layout of convex hulls to improve computation times for support point queries. The support point query is a fundamental part of common collision algorithms, and the work presented…

图形学 · 计算机科学 2025-09-05 Michael Greer

This paper introduces a class of mixed-integer formulations for trained ReLU neural networks. The approach balances model size and tightness by partitioning node inputs into a number of groups and forming the convex hull over the partitions…

最优化与控制 · 数学 2021-10-22 Calvin Tsay , Jan Kronqvist , Alexander Thebelt , Ruth Misener

We present a convex hull algorithm that is accelerated on commodity graphics hardware. We analyze and identify the hurdles of writing a recursive divide and conquer algorithm on the GPU and divise a framework for representing this class of…

计算几何 · 计算机科学 2015-03-20 Stanley Tzeng , John D. Owens

This paper addresses the challenge of Granularity Competition in fine-grained classification tasks, which arises due to the semantic gap between multi-granularity labels. Existing approaches typically develop independent hierarchy-aware…

计算机视觉与模式识别 · 计算机科学 2024-12-18 Zhiguang Lu , Qianqian Xu , Shilong Bao , Zhiyong Yang , Qingming Huang

We propose a new and strengthened Branch-and-Bound (BnB) algorithm for the maximum common (connected) induced subgraph problem based on two new operators, Long-Short Memory (LSM) and Leaf vertex Union Match (LUM). Given two graphs for which…

数据结构与算法 · 计算机科学 2022-01-19 Jianrong Zhou , Kun He , Jiongzhi Zheng , Chu-Min Li , Yanli Liu

Finding the coordinate-wise maxima and the convex hull of a planar point set are probably the most classic problems in computational geometry. We consider these problems in the self-improving setting. Here, we have $n$ distributions…

计算几何 · 计算机科学 2014-04-29 Kenneth L. Clarkson , Wolfgang Mulzer , C. Seshadhri