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Label Smoothing (LS) improves model generalization through penalizing models from generating overconfident output distributions. For each training sample the LS strategy smooths the one-hot encoded training signal by distributing its…

Machine Learning · Computer Science 2021-06-29 Hongyu Guo

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…

Machine Learning · Computer Science 2020-06-15 Hoang D. Nguyen , Xuan-Son Vu , Quoc-Tuan Truong , Duc-Trong Le

Domain adversarial training has been ubiquitous for achieving invariant representations and is used widely for various domain adaptation tasks. In recent times, methods converging to smooth optima have shown improved generalization for…

Machine Learning · Computer Science 2022-06-17 Harsh Rangwani , Sumukh K Aithal , Mayank Mishra , Arihant Jain , R. Venkatesh Babu

In the realm of recommender systems (RS), Top-$K$ ranking metrics such as NDCG@$K$ are the gold standard for evaluating recommendation performance. However, during the training of recommendation models, optimizing NDCG@$K$ poses significant…

Information Retrieval · Computer Science 2025-08-11 Weiqin Yang , Jiawei Chen , Shengjia Zhang , Peng Wu , Yuegang Sun , Yan Feng , Chun Chen , Can Wang

The effectiveness of large language models (LLMs) is often hindered by duplicated data in their extensive pre-training datasets. Current approaches primarily focus on detecting and removing duplicates, which risks the loss of valuable…

Computation and Language · Computer Science 2024-07-10 Nan He , Weichen Xiong , Hanwen Liu , Yi Liao , Lei Ding , Kai Zhang , Guohua Tang , Xiao Han , Wei Yang

While traditional Deep Learning (DL) optimization methods treat all training samples equally, Distributionally Robust Optimization (DRO) adaptively assigns importance weights to different samples. However, a significant gap exists between…

A deep neural network of multiple nonlinear layers forms a large function space, which can easily lead to overfitting when it encounters small-sample data. To mitigate overfitting in small-sample classification, learning more discriminative…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Xiaoxu Li , Dongliang Chang , Zhanyu Ma , Zheng-Hua Tan , Jing-Hao Xue , Jie Cao , Jingyi Yu , Jun Guo

Noisy labels pose a common challenge for training accurate deep neural networks. To mitigate label noise, prior studies have proposed various robust loss functions to achieve noise tolerance in the presence of label noise, particularly…

Machine Learning · Computer Science 2025-08-05 Jialiang Wang , Xiong Zhou , Deming Zhai , Junjun Jiang , Xiangyang Ji , Xianming Liu

Simplicity Bias (SB) is a phenomenon that deep neural networks tend to rely favorably on simpler predictive patterns but ignore some complex features when applied to supervised discriminative tasks. In this work, we investigate SB in…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Xiu-Shen Wei , Xuhao Sun , Yang Shen , Anqi Xu , Peng Wang , Faen Zhang

A fundamental challenge for machine learning models is how to generalize learned models for out-of-distribution (OOD) data. Among various approaches, exploiting invariant features by Domain Adversarial Training (DAT) received widespread…

Machine Learning · Computer Science 2023-02-02 YiFan Zhang , Xue Wang , Jian Liang , Zhang Zhang , Liang Wang , Rong Jin , Tieniu Tan

Dynamic spectrum management (DSM) has been recognized as a key technology to significantly improve the performance of digital subscriber line (DSL) broadband access networks. The basic concept of DSM is to coordinate transmission over…

Optimization and Control · Mathematics 2016-11-15 Paschalis Tsiaflakis , Ion Necoara , Johan A. K. Suykens , Marc Moonen

In this paper, we introduce a novel method designed to enhance label efficiency in satellite imagery analysis by integrating semi-supervised learning (SSL) with active learning strategies. Our approach utilizes contrastive learning together…

Computer Vision and Pattern Recognition · Computer Science 2024-06-26 David Pogorzelski , Peter Arlinghaus , Wenyan Zhang

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…

Machine Learning · Computer Science 2025-07-22 Yajiao Dai , Jun Li , Zhen Mei , Yiyang Ni , Shi Jin , Zengxiang Li , Sheng Guo , Wei Xiang

The primary goal of training in early convolutional neural networks (CNN) is the higher generalization performance of the model. However, as the expected calibration error (ECE), which quantifies the explanatory power of model inference,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-01 Seungbum Hong , Jihun Yoon , Bogyu Park , Min-Kook Choi

Despite the widespread utilization of deep neural networks (DNNs) for speech emotion recognition (SER), they are severely restricted due to the paucity of labeled data for training. Recently, segment-based approaches for SER have been…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-31 Shuiyang Mao , P. C. Ching , Tan Lee

While reinforcement learning (RL) is increasingly used for LLM-based tool learning, its efficiency is often hampered by an overabundance of simple samples that provide diminishing learning value as training progresses. Existing dynamic…

Machine Learning · Computer Science 2025-09-19 Zihao Feng , Xiaoxue Wang , Bowen Wu , Hailong Cao , Tiejun Zhao , Qun Yu , Baoxun Wang

Semi-Supervised Learning (SSL) has become a preferred paradigm in many deep learning tasks, which reduces the need for human labor. Previous studies primarily focus on effectively utilising the labelled and unlabeled data to improve…

Machine Learning · Computer Science 2024-10-29 Qian Shao , Jiangrui Kang , Qiyuan Chen , Zepeng Li , Hongxia Xu , Yiwen Cao , Jiajuan Liang , Jian Wu

Contrastive self-supervised learning (SSL) learns an embedding space that maps similar data pairs closer and dissimilar data pairs farther apart. Despite its success, one issue has been overlooked: the fairness aspect of representations…

Deep neural networks (DNNs) provide state-of-the-art results on various tasks and are widely used in real world applications. However, it was discovered that machine learning models, including the best performing DNNs, suffer from a…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Andras Rozsa , Manuel Günther , Terrance E. Boult

Self-supervised learning (SSL) has demonstrated its effectiveness in learning representations through comparison methods that align with human intuition. However, mainstream SSL methods heavily rely on high body datasets with single label,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Jiale Chen