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Typical person re-identification (re-ID) methods train a deep CNN to extract deep features and combine them with a distance metric for the final evaluation. In this work, we focus on exploiting the full information encoded in the deep…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Yong Liu , Lin Shang , Andy Song

Recently, federated learning has emerged as a promising approach for training a global model using data from multiple organizations without leaking their raw data. Nevertheless, directly applying federated learning to real-world tasks faces…

机器学习 · 计算机科学 2022-04-19 Bingzhe Wu , Zhipeng Liang , Yuxuan Han , Yatao Bian , Peilin Zhao , Junzhou Huang

This paper studies the convergence conditions and properties of the distributed adaptive signal fusion (DASF) algorithm, the framework itself having been introduced in a `Part I' companion paper. The DASF algorithm can be used to solve…

信号处理 · 电气工程与系统科学 2023-05-12 Cem Ates Musluoglu , Charles Hovine , Alexander Bertrand

Federated learning (FL), which has gained increasing attention recently, enables distributed devices to train a common machine learning (ML) model for intelligent inference cooperatively without data sharing. However, problems in practical…

机器学习 · 计算机科学 2022-11-01 Yujie Zhou , Zhidu Li , Tong Tang , Ruyan Wang

Feature Transformation (FT) crafts new features from original ones via mathematical operations to enhance dataset expressiveness for downstream models. However, existing FT methods exhibit critical limitations: discrete search struggles…

机器学习 · 计算机科学 2025-05-22 Nanxu Gong , Zijun Li , Sixun Dong , Haoyue Bai , Wangyang Ying , Xinyuan Wang , Yanjie Fu

We propose a method for transfer learning in nonparametric regression using a random forest (RF) with distance covariance-based feature weights, assuming the unknown source and target regression functions are sparsely different. Our method…

机器学习 · 统计学 2026-03-17 Chenze Li , Subhadeep Paul

In this paper we develop a new approach to stochastic evolution equations with an unbounded drift $A$ which is dependent on time and the underlying probability space in an adapted way. It is well-known that the semigroup approach to…

概率论 · 数学 2014-02-28 Matthijs Pronk , Mark Veraar

While there is currently a lot of enthusiasm about "big data", useful data is usually "small" and expensive to acquire. In this paper, we present a new paradigm of learning partial differential equations from {\em small} data. In…

人工智能 · 计算机科学 2018-01-17 Maziar Raissi , George Em Karniadakis

Feature compression is increasingly important for improving the efficiency of downstream tasks, especially in applications involving large-scale or multi-modal data. While existing methods typically rely on dedicated models for achieving…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Yufan Liu , Daoyuan Ren , Zhipeng Zhang , Wenyang Luo , Bing Li , Weiming Hu , Stephen Maybank

A fundamental assumption of most machine learning algorithms is that the training and test data are drawn from the same underlying distribution. However, this assumption is violated in almost all practical applications: machine learning…

机器学习 · 计算机科学 2021-12-02 Marvin Zhang , Henrik Marklund , Nikita Dhawan , Abhishek Gupta , Sergey Levine , Chelsea Finn

Random Fourier Features (RFF) is among the most popular and broadly applicable approaches for scaling up kernel methods. In essence, RFF allows the user to avoid costly computations on a large kernel matrix via a fast randomized…

机器学习 · 统计学 2023-02-23 Junwen Yao , N. Benjamin Erichson , Miles E. Lopes

Traditionally, neural networks are parameterized using optimization procedures such as stochastic gradient descent, RMSProp and ADAM. These procedures tend to drive the parameters of the network toward a local minimum. In this article, we…

机器学习 · 计算机科学 2020-01-07 Benedict Leimkuhler , Charles Matthews , Tiffany Vlaar

Machine learning applied to computer vision and signal processing is achieving results comparable to the human brain on specific tasks due to the great improvements brought by the deep neural networks (DNN). The majority of state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2020-06-30 José Augusto Stuchi , Levy Boccato , Romis Attux

Classification of functional data where observations are curves or trajectories poses unique challenges, particularly under severe class imbalance. Traditional Random Forest algorithms, while robust for tabular data, often fail to capture…

机器学习 · 统计学 2025-12-10 Fahad Mostafa , Hafiz Khan

Learning the underlying potential energy of stochastic gradient systems from partial and noisy observations is a fundamental problem arising in physics, chemistry, and data-driven modeling. Classical approaches often rely on direct…

机器学习 · 计算机科学 2026-04-23 Yubin Lu , Xiaofan Li , Chun Liu , Qi Tang , Yiwei Wang

In this paper, we propose a new random forest algorithm that constructs the trees using a novel adaptive split-balancing method. Rather than relying on the widely-used random feature selection, we propose a permutation-based balanced…

机器学习 · 统计学 2024-09-04 Yuqian Zhang , Weijie Ji , Jelena Bradic

The fractional advection-dispersion equation (FADE) has attracted increased attention from researchers as it provides an accurate description for challenging phenomenas with long-range time memory and spatial interactions, such as the…

数值分析 · 数学 2019-02-12 Huan Liu , Hong Wang , Xiangcheng Zheng

Velocity estimation is of great importance in autonomous racing. Still, existing solutions are characterized by limited accuracy, especially in the case of aggressive driving or poor generalization to unseen road conditions. To address…

机器人学 · 计算机科学 2024-08-29 Jan Węgrzynowski , Grzegorz Czechmanowski , Piotr Kicki , Krzysztof Walas

Domain adaptation is widely used in learning problems lacking labels. Recent studies show that deep adversarial domain adaptation models can make markable improvements in performance, which include symmetric and asymmetric architectures.…

计算机视觉与模式识别 · 计算机科学 2019-09-19 Guanyu Cai , Yuqin Wang , Mengchu Zhou , Lianghua He

Common statistical prediction models often require and assume stationarity in the data. However, in many practical applications, changes in the relationship of the response and predictor variables are regularly observed over time, resulting…

机器学习 · 统计学 2015-05-05 Heng Wang , Zubin Abraham