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The label-free model evaluation aims to predict the model performance on various test sets without relying on ground truths. The main challenge of this task is the absence of labels in the test data, unlike in classical supervised model…

机器学习 · 计算机科学 2023-04-20 Shuyu Miao , Lin Zheng , Jingjing Liu , and Hong Jin

Vertical Federated Learning (VFL) is a well-known FL variant that enables multiple parties to collaboratively train a model without sharing their raw data. Existing VFL approaches focus on overlapping samples among different parties, while…

机器学习 · 计算机科学 2025-01-14 Yaopei Zeng , Lei Liu , Shaoguo Liu , Hongjian Dou , Baoyuan Wu , Li Liu

Robust estimators for linear regression require non-convex objective functions to shield against adverse affects of outliers. This non-convexity brings challenges, particularly when combined with penalization in high-dimensional settings.…

统计计算 · 统计学 2025-08-08 David Kepplinger , Siqi Wei

Intelligent fault diagnosis (IFD) plays a crucial role in ensuring the safe operation of industrial machinery and improving production efficiency. However, traditional supervised deep learning methods require a large amount of training data…

机器学习 · 计算机科学 2025-07-22 Yajiao Dai , Jun Li , Zhen Mei , Yiyang Ni , Shi Jin , Zengxiang Li , Sheng Guo , Wei Xiang

Coupled decompositions are a widely used tool for data fusion. As the volume of data increases, so does the dimensionality of matrices and tensors, highlighting the need for more efficient coupled decomposition algorithms. This paper…

数值分析 · 数学 2026-04-22 Erna Begovic , Anita Carevic , Ivana Sain Glibic

The semiparametric factor model serves as a vital tool to describe the dependence patterns in the data. It recognizes that the common features observed in the data are actually explained by functions of specific exogenous variables.Unlike…

统计方法学 · 统计学 2024-03-06 Hui Jiang , Lei Huang , Shengfan Wu

Traditionally, in supervised machine learning, (a significant) part of the available data (usually 50% to 80%) is used for training and the rest for validation. In many problems, however, the data is highly imbalanced in regard to different…

机器学习 · 计算机科学 2020-04-21 Xiaowei Gu , Plamen P Angelov , Eduardo Almeida Soares

Amid growing demands for data privacy and advances in computational infrastructure, federated learning (FL) has emerged as a prominent distributed learning paradigm. Nevertheless, differences in data distribution (such as covariate and…

机器学习 · 计算机科学 2026-03-18 Zhenyuan Huang , Hui Zhang , Wenzhong Tang , Haijun Yang

As a prevalent distributed learning paradigm, Federated Learning (FL) trains a global model on a massive amount of devices with infrequent communication. This paper investigates a class of composite optimization and statistical recovery…

机器学习 · 计算机科学 2022-10-04 Yajie Bao , Michael Crawshaw , Shan Luo , Mingrui Liu

Federated Learning (FL) is a distributed machine learning framework that trains accurate global models while preserving clients' privacy-sensitive data. However, most FL approaches assume that clients possess labeled data, which is often…

机器学习 · 计算机科学 2024-11-01 Seungjoo Lee , Thanh-Long V. Le , Jaemin Shin , Sung-Ju Lee

This paper presents a review on methods for class-imbalanced learning with the Support Vector Machine (SVM) and its variants. We first explain the structure of SVM and its variants and discuss their inefficiency in learning with…

机器学习 · 计算机科学 2024-07-23 Salim Rezvani , Farhad Pourpanah , Chee Peng Lim , Q. M. Jonathan Wu

Quantum coherence and entanglement are fundamental resources in quantum technologies, yet their efficient estimation for unknown states by employing minimal resources in experimental settings remains challenging, particularly in…

量子物理 · 物理学 2026-01-12 Ting Lin , Zhihua Chen , Kai Wu , Zhihua Guo , Zhihao Ma , Shao-Ming Fei

As an emerging secure learning paradigm in lever-aging cross-agency private data, vertical federatedlearning (VFL) is expected to improve advertising models by enabling the joint learning of complementary user attributes privately owned by…

机器学习 · 计算机科学 2023-06-21 Wenjie Li , Qiaolin Xia , Junfeng Deng , Hao Cheng , Jiangming Liu , Kouying Xue , Yong Cheng , Shu-Tao Xia

As a promising distributed machine learning paradigm, Federated Learning (FL) has attracted increasing attention to deal with data silo problems without compromising user privacy. By adopting the classic one-to-multi training scheme (i.e.,…

机器学习 · 计算机科学 2024-07-08 Ming Hu , Peiheng Zhou , Zhihao Yue , Zhiwei Ling , Yihao Huang , Anran Li , Yang Liu , Xiang Lian , Mingsong Chen

Out-of-distribution (OOD) detection plays a key role in enhancing the robustness of artificial intelligence systems by identifying inputs that differ significantly from the training distribution, thereby preventing unreliable predictions…

With the rising number of machine learning competitions, the world has witnessed an exciting race for the best algorithms. However, the involved data selection process may fundamentally suffer from evidence ambiguity and concept drift…

机器学习 · 计算机科学 2020-06-15 Hoang D. Nguyen , Xuan-Son Vu , Quoc-Tuan Truong , Duc-Trong Le

The performance of automatic speaker verification (ASV) systems could be degraded by voice spoofing attacks. Most existing works aimed to develop standalone spoofing countermeasure (CM) systems. Relatively little work targeted at developing…

音频与语音处理 · 电气工程与系统科学 2026-02-05 You Zhang , Ge Zhu , Zhiyao Duan

Cross-validation (CV) is a common method to tune machine learning methods and can be used for model selection in regression as well. Because of the structured nature of small, traditional experimental designs, the literature has warned…

应用统计 · 统计学 2025-06-18 Maria L. Weese , Byran J. Smucker , David J. Edwards

Partition-wise models offer a flexible approach for modeling complex and multidimensional data that are capable of producing interpretable results. They are based on partitioning the observed data into regions, each of which is modeled with…

统计方法学 · 统计学 2017-06-07 Rex C. Y. Cheung , Alexander Aue , Thomas C. M. Lee

Federated learning (FL) enables collaborative model training while preserving each participant's privacy, which is particularly beneficial to the medical field. FedAvg is a standard algorithm that uses fixed weights, often originating from…