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相关论文: Overfitting In Contrastive Learning?

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We study three intriguing properties of contrastive learning. First, we generalize the standard contrastive loss to a broader family of losses, and we find that various instantiations of the generalized loss perform similarly under the…

机器学习 · 计算机科学 2021-10-26 Ting Chen , Calvin Luo , Lala Li

Contrastive learning has revolutionized the field of computer vision, learning rich representations from unlabeled data, which generalize well to diverse vision tasks. Consequently, it has become increasingly important to explain these…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Fawaz Sammani , Boris Joukovsky , Nikos Deligiannis

Graph classification is a widely studied problem and has broad applications. In many real-world problems, the number of labeled graphs available for training classification models is limited, which renders these models prone to overfitting.…

机器学习 · 计算机科学 2020-09-15 Jiaqi Zeng , Pengtao Xie

Recently, self-supervised learning has attracted great attention, since it only requires unlabeled data for model training. Contrastive learning is one popular method for self-supervised learning and has achieved promising empirical…

机器学习 · 计算机科学 2023-03-03 Weiran Huang , Mingyang Yi , Xuyang Zhao , Zihao Jiang

Contrastive Learning has recently received interest due to its success in self-supervised representation learning in the computer vision domain. However, the origins of Contrastive Learning date as far back as the 1990s and its development…

机器学习 · 计算机科学 2020-10-29 Phuc H. Le-Khac , Graham Healy , Alan F. Smeaton

Unsupervised feature learning has made great strides with contrastive learning based on instance discrimination and invariant mapping, as benchmarked on curated class-balanced datasets. However, natural data could be highly correlated and…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Xudong Wang , Ziwei Liu , Stella X. Yu

A significant obstacle in the development of robust machine learning models is covariate shift, a form of distribution shift that occurs when the input distributions of the training and test sets differ while the conditional label…

机器学习 · 统计学 2021-11-17 Nilesh Tripuraneni , Ben Adlam , Jeffrey Pennington

Unsupervised contrastive learning has gained increasing attention in the latest research and has proven to be a powerful method for learning representations from unlabeled data. However, little theoretical analysis was known for this…

机器学习 · 计算机科学 2021-06-01 Zixin Wen

Recent research in neural networks and machine learning suggests that using many more parameters than strictly required by the initial complexity of a regression problem can result in more accurate or faster-converging models -- contrary to…

机器学习 · 计算机科学 2023-05-18 Arthur Castello B. de Oliveira , Milad Siami , Eduardo D. Sontag

Although fast adversarial training provides an efficient approach for building robust networks, it may suffer from a serious problem known as catastrophic overfitting (CO), where multi-step robust accuracy suddenly collapses to zero. In…

机器学习 · 计算机科学 2023-03-27 Zhengbao He , Tao Li , Sizhe Chen , Xiaolin Huang

Self-supervised learning is a machine learning approach that generates implicit labels by learning underlined patterns and extracting discriminative features from unlabeled data without manual labelling. Contrastive learning introduces the…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Asifullah Khan , Laiba Asmatullah , Anza Malik , Shahzaib Khan , Hamna Asif

Excessive reuse of holdout data can lead to overfitting. However, there is little concrete evidence of significant overfitting due to holdout reuse in popular multiclass benchmarks today. Known results show that, in the worst-case,…

机器学习 · 计算机科学 2019-05-27 Vitaly Feldman , Roy Frostig , Moritz Hardt

Feature learning strength (FLS), i.e., the inverse of the effective output scaling of a model, plays a critical role in shaping the optimization dynamics of neural nets. While its impact has been extensively studied under the asymptotic…

机器学习 · 计算机科学 2026-05-27 Taesun Yeom , Taehyeok Ha , Jaeho Lee

Contrastive learning is a highly effective method for learning representations from unlabeled data. Recent works show that contrastive representations can transfer across domains, leading to simple state-of-the-art algorithms for…

机器学习 · 计算机科学 2022-05-25 Jeff Z. HaoChen , Colin Wei , Ananya Kumar , Tengyu Ma

Overfitting, which happens when the number of parameters in a model is too large compared to the number of data points available for determining these parameters, is a serious and growing problem in survival analysis. While modern medicine…

应用统计 · 统计学 2017-09-13 ACC Coolen , JE Barrett , P Paga , CJ Perez-Vicente

The literature on "benign overfitting" in overparameterized models has been mostly restricted to regression or binary classification; however, modern machine learning operates in the multiclass setting. Motivated by this discrepancy, we…

机器学习 · 统计学 2023-07-13 Ke Wang , Vidya Muthukumar , Christos Thrampoulidis

Transformer-based sequence-to-sequence architectures, while achieving state-of-the-art results on a large number of NLP tasks, can still suffer from overfitting during training. In practice, this is usually countered either by applying…

计算与语言 · 计算机科学 2022-01-04 Dušan Variš , Ondřej Bojar

Aligning powerful AI models on tasks that surpass human evaluation capabilities is the central problem of \textbf{superalignment}. To address this problem, weak-to-strong generalization aims to elicit the capabilities of strong models…

机器学习 · 计算机科学 2025-03-07 Junhao Shi , Qinyuan Cheng , Zhaoye Fei , Yining Zheng , Qipeng Guo , Xipeng Qiu

Deep, overparameterized regression models are notorious for their tendency to overfit. This problem is exacerbated in heteroskedastic models, which predict both mean and residual noise for each data point. At one extreme, these models fit…

机器学习 · 统计学 2024-02-15 Eliot Wong-Toi , Alex Boyd , Vincent Fortuin , Stephan Mandt

Overfitting data is a well-known phenomenon related with the generation of a model that mimics too closely (or exactly) a particular instance of data, and may therefore fail to predict future observations reliably. In practice, this…

机器学习 · 统计学 2023-04-14 Matias Vera , Leonardo Rey Vega , Pablo Piantanida