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We consider active, semi-supervised learning in an offline transductive setting. We show that a previously proposed error bound for active learning on undirected weighted graphs can be generalized by replacing graph cut with an arbitrary…

机器学习 · 计算机科学 2012-02-20 Andrew Guillory , Jeff A. Bilmes

Semi-Supervised Learning (SSL) has advanced classification tasks by inputting both labeled and unlabeled data to train a model jointly. However, existing SSL methods only consider the unlabeled data whose predictions are beyond a fixed…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Zechen Liang , Yuan-Gen Wang , Wei Lu , Xiaochun Cao

Data fusion enables powerful and generalizable analyses across multiple sources. However, different data collection capacities across different sources lead to blockwise missingness (BM), which poses challenges in practice. Meanwhile, the…

统计方法学 · 统计学 2025-12-09 Yiming Li , Ying Wei , Molei Liu

Semi-supervised domain adaptation (SSDA) has been extensively researched due to its ability to improve classification performance and generalization ability of models by using a small amount of labeled data on the target domain. However,…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Xinyang Huang , Chuang Zhu , Ruiying Ren , Shengjie Liu , Tiejun Huang

Ensemble Conditional Variance Estimation (ECVE) is a novel sufficient dimension reduction (SDR) method in regressions with continuous response and predictors. ECVE applies to general non-additive error regression models. It operates under…

统计方法学 · 统计学 2021-03-01 Lukas Fertl , Efstathia Bura

Characterization of local minima draws much attention in theoretical studies of deep learning. In this study, we investigate the distribution of parameters in an over-parametrized finite neural network trained by ridge regularized empirical…

机器学习 · 计算机科学 2021-02-22 Sho Sonoda , Isao Ishikawa , Masahiro Ikeda

Gradient clipping is a standard training technique used in deep learning applications such as large-scale language modeling to mitigate exploding gradients. Recent experimental studies have demonstrated a fairly special behavior in the…

机器学习 · 计算机科学 2023-06-06 Amirhossein Reisizadeh , Haochuan Li , Subhro Das , Ali Jadbabaie

This paper focuses on the problem of Differentially Private Stochastic Optimization for (multi-layer) fully connected neural networks with a single output node. In the first part, we examine cases with no hidden nodes, specifically focusing…

机器学习 · 计算机科学 2023-10-13 Hanpu Shen , Cheng-Long Wang , Zihang Xiang , Yiming Ying , Di Wang

One of the primary challenges in Semi-supervised Domain Adaptation (SSDA) is the skewed ratio between the number of labeled source and target samples, causing the model to be biased towards the source domain. Recent works in SSDA show that…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Abhay Rawat , Isha Dua , Saurav Gupta , Rahul Tallamraju

We provide a convergence analysis of deep feature instrumental variable (DFIV) regression (Xu et al., 2021), a nonparametric approach to IV regression using data-adaptive features learned by deep neural networks in two stages. We prove that…

机器学习 · 统计学 2025-01-10 Juno Kim , Dimitri Meunier , Arthur Gretton , Taiji Suzuki , Zhu Li

Supervised deep learning methods have shown promise for large-scale channel estimation (LCE), but their reliance on ground-truth channel labels greatly limits their practicality in real-world systems. In this paper, we propose an…

信号处理 · 电气工程与系统科学 2025-08-15 Haotian Tian , Lixiang Lian

Consider the multivariate nonparametric regression model. It is shown that estimators based on sparsely connected deep neural networks with ReLU activation function and properly chosen network architecture achieve the minimax rates of…

统计理论 · 数学 2020-09-15 Johannes Schmidt-Hieber

Semi-supervised learning has received considerable attention for its potential to leverage abundant unlabeled data to enhance model robustness. Pseudo labeling is a widely used strategy in semi supervised learning. However, existing methods…

计算机视觉与模式识别 · 计算机科学 2024-11-14 Tao Wang , Xinlin Zhang , Yuanbin Chen , Yuanbo Zhou , Longxuan Zhao , Tao Tan , Tong Tong

Spacecraft Pose Estimation (SPE) is a fundamental capability for autonomous space operations such as rendezvous, docking, and in-orbit servicing. Hybrid pipelines that combine object detection, keypoint regression, and Perspective-n-Point…

计算机视觉与模式识别 · 计算机科学 2025-09-18 Inder Pal Singh , Nidhal Eddine Chenni , Abd El Rahman Shabayek , Arunkumar Rathinam , Djamila Aouada

We introduce a novel unsupervised loss function for learning semantic segmentation with deep convolutional neural nets (ConvNet) when densely labeled training images are not available. More specifically, the proposed loss function penalizes…

计算机视觉与模式识别 · 计算机科学 2018-08-09 Mehran Javanmardi , Mehdi Sajjadi , Ting Liu , Tolga Tasdizen

Semi-supervised learning (SSL) has recently received increased attention from machine learning researchers. By enabling effective propagation of known labels in graph-based deep learning (GDL) algorithms, SSL is poised to become an…

机器学习 · 计算机科学 2022-03-24 Alex Morehead , Watchanan Chantapakul , Jianlin Cheng

We analyze approximation rates of deep ReLU neural networks for Sobolev-regular functions with respect to weaker Sobolev norms. First, we construct, based on a calculus of ReLU networks, artificial neural networks with ReLU activation…

泛函分析 · 数学 2019-02-22 Ingo Gühring , Gitta Kutyniok , Philipp Petersen

Supervised regression to demonstrations has been demonstrated to be a stable way to train deep policy networks. We are motivated to study how we can take full advantage of supervised loss functions for stably training deep reinforcement…

机器学习 · 计算机科学 2021-06-11 Daochen Zha , Kwei-Herng Lai , Kaixiong Zhou , Xia Hu

We propose a new metaheuristic training scheme that combines Stochastic Gradient Descent (SGD) and Discrete Optimization in an unconventional way. Our idea is to define a discrete neighborhood of the current SGD point containing a number of…

机器学习 · 计算机科学 2019-06-05 Matteo Fischetti , Matteo Stringher

Modeling dynamical systems is crucial for a wide range of tasks, but it remains challenging due to complex nonlinear dynamics, limited observations, or lack of prior knowledge. Recently, data-driven approaches such as Neural Ordinary…