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Performance variability management is an active research area in high-performance computing (HPC). We focus on input/output (I/O) variability. To study the performance variability, computer scientists often use grid-based designs (GBDs) to…

应用统计 · 统计学 2022-01-25 Yueyao Wang , Li Xu , Yili Hong , Rong Pan , Tyler Chang , Thomas Lux , Jon Bernard , Layne Watson , Kirk Cameron

In real-world applications, it is important for machine learning algorithms to be robust against data outliers or corruptions. In this paper, we focus on improving the robustness of a large class of learning algorithms that are formulated…

机器学习 · 计算机科学 2021-06-04 Quanming Yao , Hangsi Yang , En-Liang Hu , James Kwok

Maximally Smooth Functions (MSFs) are a form of constrained functions in which there are no inflection points or zero crossings in high order derivatives. Consequently, they have applications to signal recovery in experiments where signals…

宇宙学与河外天体物理 · 物理学 2021-03-01 H. T. J. Bevins , W. J. Handley , A. Fialkov , E. de Lera Acedo , L. J. Greenhill , D. C. Price

In this paper we introduce a new dual program, which is representable as a semi-definite linear programming problem, for a primal convex minimax programming model problem and show that there is no duality gap between the primal and the dual…

最优化与控制 · 数学 2013-12-11 V. Jeyakumar , J. Vicente-Perez

Adaptive optimizers are pivotal in guiding the weight updates of deep neural networks, yet they often face challenges such as poor generalization and oscillation issues. To counter these, we introduce sigSignGrad and tanhSignGrad, two novel…

机器学习 · 计算机科学 2024-08-23 Hongye Zheng , Bingxing Wang , Minheng Xiao , Honglin Qin , Zhizhong Wu , Lianghao Tan

Achieving pixel-level registration between SAR and optical images remains a challenging task due to their fundamentally different imaging mechanisms and visual characteristics. Although deep learning has achieved great success in many…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Haodong Wang , Tao Zhuo , Xiuwei Zhang , Hanlin Yin , Wencong Wu , Yanning Zhang

In this paper, we propose a proximal stochasitc gradient algorithm (PSGA) for solving composite optimization problems by incorporating variance reduction techniques and an adaptive step-size strategy. In the PSGA method, the objective…

最优化与控制 · 数学 2026-04-06 Changjie Fang , Hao Yang , Shenglan Chen

The paper deals with stochastic difference-of-convex functions (DC) programs, that is, optimization problems whose the cost function is a sum of a lower semicontinuous DC function and the expectation of a stochastic DC function with respect…

数值分析 · 数学 2020-12-14 Le Thi Hoai An , Huynh Van Ngai , Pham Dinh Tao , Luu Hoang Phuc Hau

Convex regression is the problem of fitting a convex function to a data set consisting of input-output pairs. We present a new approach to this problem called spectrahedral regression, in which we fit a spectrahedral function to the data,…

最优化与控制 · 数学 2021-11-01 Eliza O'Reilly , Venkat Chandrasekaran

Softassign is a pivotal method in graph matching and other learning tasks. Many softassign-based algorithms exhibit performance sensitivity to a parameter in the softassign. However, tuning the parameter is challenging and almost done…

最优化与控制 · 数学 2025-05-06 Binrui Shen , Qiang Niu , Shengxin Zhu

We propose a novel method to fit and segment multi-structural data via convex relaxation. Unlike greedy methods --which maximise the number of inliers-- this approach efficiently searches for a soft assignment of points to models by…

计算机视觉与模式识别 · 计算机科学 2017-06-07 Paul Amayo , Pedro Pinies , Lina M. Paz , Paul Newman

We investigate a difference-of-convex (DC) formulation where the second term is allowed to be weakly convex. We examine the precise behavior of a single iteration of the difference-of-convex algorithm (DCA), providing a tight…

最优化与控制 · 数学 2026-01-23 Teodor Rotaru , Panagiotis Patrinos , François Glineur

We study robust convex quadratic programs where the uncertain problem parameters can contain both continuous and integer components. Under the natural boundedness assumption on the uncertainty set, we show that the generic problems are…

最优化与控制 · 数学 2018-12-19 Areesh Mittal , Can Gokalp , Grani A. Hanasusanto

String kernels are attractive data analysis tools for analyzing string data. Among them, alignment kernels are known for their high prediction accuracies in string classifications when tested in combination with SVM in various applications.…

机器学习 · 计算机科学 2019-11-15 Yasuo Tabei , Yoshihiro Yamanishi , Rasmus Pagh

The prediction of chemical properties using Machine Learning (ML) techniques calls for a set of appropriate descriptors that accurately describe atomic and, on a larger scale, molecular environments. A mapping of conformational information…

化学物理 · 物理学 2021-02-02 Martin P. Bircher , Andreas Singraber , Christoph Dellago

The self-attention mechanism distinguishes transformer-based large language models (LLMs) apart from convolutional and recurrent neural networks. Despite the performance improvement, achieving real-time LLM inference on silicon remains…

硬件体系结构 · 计算机科学 2024-11-18 Shiwei Liu , Guanchen Tao , Yifei Zou , Derek Chow , Zichen Fan , Kauna Lei , Bangfei Pan , Dennis Sylvester , Gregory Kielian , Mehdi Saligane

Robustness, domain adaptation, photometric/occlusion invariance, sensor drift, and alignment style are treated as separate literatures with separate method families. Under label-preserving deployment shift they share one geometric object:…

机器学习 · 计算机科学 2026-05-26 Vishal Rajput

Rectified Flow (RF) models achieve state-of-the-art generation quality, yet controlling them for precise tasks -- such as semantic editing or blind image recovery -- remains a challenge. Current approaches bifurcate into inversion-based…

机器学习 · 计算机科学 2026-03-09 Vansh Bansal , James G Scott

While Transformer architecture excel at modeling long-range dependencies contributing to its widespread adoption in vision tasks the quadratic complexity of softmax-based attention mechanisms imposes a major bottleneck, particularly when…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Yuan Cao , Dong Wang

This paper introduces a novel methodology leveraging differentiable programming to design efficient, constrained adaptive non-uniform Linear Differential Microphone Arrays (LDMAs) with reduced implementation costs. Utilizing an automatic…

声音 · 计算机科学 2024-12-09 Siminfar Samakoush Galougah , Ramani Duraiswami