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Recent studies on backdoor attacks in model training have shown that polluting a small portion of training data is sufficient to produce incorrect manipulated predictions on poisoned test-time data while maintaining high clean accuracy in…

机器学习 · 计算机科学 2023-01-24 Soumyadeep Pal , Ren Wang , Yuguang Yao , Sijia Liu

As machine learning (ML) models gain traction in clinical applications, understanding the impact of clinician and societal biases on ML models is increasingly important. While biases can arise in the labels used for model training, the many…

机器学习 · 计算机科学 2022-08-03 Trenton Chang , Michael W. Sjoding , Jenna Wiens

Minimizing prediction uncertainty on unlabeled data is a key factor to achieve good performance in semi-supervised learning (SSL). The prediction uncertainty is typically expressed as the \emph{entropy} computed by the transformed…

机器学习 · 计算机科学 2021-12-16 Jing Li , Yuangang Pan , Ivor W. Tsang

Data practices shape research and practice on fairness in machine learning (fair ML). Critical data studies offer important reflections and critiques for the responsible advancement of the field by highlighting shortcomings and proposing…

机器学习 · 计算机科学 2024-06-21 Jan Simson , Alessandro Fabris , Christoph Kern

Current deep learning methods are regarded as favorable if they empirically perform well on dedicated test sets. This mentality is seamlessly reflected in the resurfacing area of continual learning, where consecutively arriving data is…

机器学习 · 计算机科学 2023-01-25 Martin Mundt , Yongwon Hong , Iuliia Pliushch , Visvanathan Ramesh

The detection of lesions in magnetic resonance imaging (MRI)-scans of human brains remains challenging, time-consuming and error-prone. Recently, unsupervised anomaly detection (UAD) methods have shown promising results for this task. These…

图像与视频处理 · 电气工程与系统科学 2022-04-13 Finn Behrendt , Marcel Bengs , Frederik Rogge , Julia Krüger , Roland Opfer , Alexander Schlaefer

Modern machine learning pipelines, in particular those based on deep learning (DL) models, require large amounts of labeled data. For classification problems, the most common learning paradigm consists of presenting labeled examples during…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Jacopo Teneggi , Paul H. Yi , Jeremias Sulam

An increased awareness concerning risks of algorithmic bias has driven a surge of efforts around bias mitigation strategies. A vast majority of the proposed approaches fall under one of two categories: (1) imposing algorithmic fairness…

机器学习 · 计算机科学 2023-07-11 Yunyi Li , Maria De-Arteaga , Maytal Saar-Tsechansky

There has been increased interest in devising learning techniques that combine unlabeled data with labeled data ? i.e. semi-supervised learning. However, to the best of our knowledge, no study has been performed across various techniques…

机器学习 · 计算机科学 2011-09-12 N. V. Chawla , Grigoris Karakoulas

Recently, with the significant developments in deep learning techniques, solving underdetermined inverse problems has become one of the major concerns in the medical imaging domain. Typical examples include undersampled magnetic resonance…

图像与视频处理 · 电气工程与系统科学 2020-06-29 Chang Min Hyun , Seong Hyeon Baek , Mingyu Lee , Sung Min Lee , Jin Keun Seo

Data augmentation plays a pivotal role in enhancing and diversifying training data. Nonetheless, consistently improving model performance in varied learning scenarios, especially those with inherent data biases, remains challenging. To…

机器学习 · 计算机科学 2024-06-04 Xiaoling Zhou , Wei Ye , Zhemg Lee , Rui Xie , Shikun Zhang

While mislabeled or ambiguously-labeled samples in the training set could negatively affect the performance of deep models, diagnosing the dataset and identifying mislabeled samples helps to improve the generalization power. Training…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Qingrui Jia , Xuhong Li , Lei Yu , Jiang Bian , Penghao Zhao , Shupeng Li , Haoyi Xiong , Dejing Dou

We demonstrate that LLMs may learn indicators of document usefulness and modulate their updates accordingly. We introduce random strings ("tags") as indicators of usefulness in a synthetic fine-tuning dataset. Fine-tuning on this dataset…

机器学习 · 计算机科学 2024-07-16 Dmitrii Krasheninnikov , Egor Krasheninnikov , Bruno Mlodozeniec , Tegan Maharaj , David Krueger

With the rapid expansion of machine learning and deep learning (DL), researchers are increasingly employing learning-based algorithms to alleviate diagnostic challenges across diverse medical tasks and applications. While advancements in…

计算机视觉与模式识别 · 计算机科学 2023-12-06 Zikang Xu , Fenghe Tang , Quan Quan , Jianrui Ding , Chunping Ning , S. Kevin Zhou

Pre-training on large-scale datasets and then fine-tuning on downstream tasks have become a standard practice in deep learning. However, pre-training data often contain label noise that may adversely affect the generalization of the model.…

机器学习 · 计算机科学 2024-03-12 Hao Chen , Jindong Wang , Ankit Shah , Ran Tao , Hongxin Wei , Xing Xie , Masashi Sugiyama , Bhiksha Raj

Open-set semi-supervised learning (open-set SSL) investigates a challenging but practical scenario where out-of-distribution (OOD) samples are contained in the unlabeled data. While the mainstream technique seeks to completely filter out…

计算机视觉与模式识别 · 计算机科学 2021-08-13 Junkai Huang , Chaowei Fang , Weikai Chen , Zhenhua Chai , Xiaolin Wei , Pengxu Wei , Liang Lin , Guanbin Li

Pre-training language models (LMs) on large-scale unlabeled text data makes the model much easier to achieve exceptional downstream performance than their counterparts directly trained on the downstream tasks. In this work, we study what…

计算与语言 · 计算机科学 2022-02-21 Cheng-Han Chiang , Hung-yi Lee

Dynamic learning systems subject to selective labeling exhibit censoring, i.e. persistent negative predictions assigned to one or more subgroups of points. In applications like consumer finance, this results in groups of applicants that are…

机器学习 · 计算机科学 2023-06-30 Jennifer Chien , Margaret Roberts , Berk Ustun

Current deep learning paradigms largely benefit from the tremendous amount of annotated data. However, the quality of the annotations often varies among labelers. Multi-observer studies have been conducted to study these annotation…

计算机视觉与模式识别 · 计算机科学 2020-10-05 Xiaosong Wang , Ziyue Xu , Dong Yang , Leo Tam , Holger Roth , Daguang Xu

Open-set semi-supervised learning (OSSL) embodies a practical scenario within semi-supervised learning, wherein the unlabeled training set encompasses classes absent from the labeled set. Many existing OSSL methods assume that these…

机器学习 · 计算机科学 2023-12-04 Erik Wallin , Lennart Svensson , Fredrik Kahl , Lars Hammarstrand