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Label smoothing is an effective regularization tool for deep neural networks (DNNs), which generates soft labels by applying a weighted average between the uniform distribution and the hard label. It is often used to reduce the overfitting…

计算机视觉与模式识别 · 计算机科学 2021-07-23 Chang-Bin Zhang , Peng-Tao Jiang , Qibin Hou , Yunchao Wei , Qi Han , Zhen Li , Ming-Ming Cheng

In this work, we propose a novel straightforward method for medical volume and sequence segmentation with limited annotations. To avert laborious annotating, the recent success of self-supervised learning(SSL) motivates the pre-training on…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Zejian Chen , Wei Zhuo , Tianfu Wang , Wufeng Xue , Dong Ni

Large language models (LLMs) have achieved great success across diverse tasks, and fine-tuning is sometimes needed to further enhance generation quality. Most existing methods rely on human supervision or parameter retraining, both of which…

计算与语言 · 计算机科学 2025-05-27 Zhen-Yu Zhang , Jiandong Zhang , Huaxiu Yao , Gang Niu , Masashi Sugiyama

Cell type annotation is a fundamental step in the analysis of single-cell RNA sequencing (scRNA-seq) data. In practice, human experts often rely on the structure revealed by principal component analysis (PCA) followed by $k$-nearest…

基因组学 · 定量生物学 2026-02-10 Tianxiang Hu , Chenyi Zhou , Jiaxiang Liu , Jiongxin Wang , Ruizhe Chen , Haoxiang Xia , Gaoang Wang , Jian Wu , Zuozhu Liu

Model training requires significantly more memory, compared with inference. Parameter efficient fine-tuning (PEFT) methods provide a means of adapting large models to downstream tasks using less memory. However, existing methods such as…

机器学习 · 计算机科学 2024-07-11 Marawan Gamal Abdel Hameed , Aristides Milios , Siva Reddy , Guillaume Rabusseau

Weakly supervised text classification methods typically train a deep neural classifier based on pseudo-labels. The quality of pseudo-labels is crucial to final performance but they are inevitably noisy due to their heuristic nature, so…

计算与语言 · 计算机科学 2022-10-26 Dheeraj Mekala , Chengyu Dong , Jingbo Shang

Stochastic Gradient (SG) is the defacto iterative technique to solve stochastic optimization (SO) problems with a smooth (non-convex) objective $f$ and a stochastic first-order oracle. SG's attractiveness is due in part to its simplicity of…

最优化与控制 · 数学 2024-03-08 David Newton , Raghu Bollapragada , Raghu Pasupathy , Nung Kwan Yip

We investigate the effectiveness of a simple solution to the common problem of deep learning in medical image analysis with limited quantities of labeled training data. The underlying idea is to assign artificial labels to abundantly…

计算机视觉与模式识别 · 计算机科学 2019-01-28 Nima Tajbakhsh , Yufei Hu , Junli Cao , Xingjian Yan , Yi Xiao , Yong Lu , Jianming Liang , Demetri Terzopoulos , Xiaowei Ding

Supervised learning algorithms based on Convolutional Neural Networks have become the benchmark for medical image segmentation tasks, but their effectiveness heavily relies on a large amount of labeled data. However, annotating medical…

图像与视频处理 · 电气工程与系统科学 2023-11-20 Tao Wang , Yuanbin Chen , Xinlin Zhang , Yuanbo Zhou , Junlin Lan , Bizhe Bai , Tao Tan , Min Du , Qinquan Gao , Tong Tong

We propose a novel method for gradient-based optimization of black-box simulators using differentiable local surrogate models. In fields such as physics and engineering, many processes are modeled with non-differentiable simulators with…

Heterogeneous Graph Neural Networks (HGNNs), have demonstrated excellent capabilities in processing heterogeneous information networks. Self-supervised learning on heterogeneous graphs, especially contrastive self-supervised strategy, shows…

机器学习 · 计算机科学 2025-06-09 Yanbei Liu , Chongxu Wang , Zhitao Xiao , Lei Geng , Yanwei Pang , Xiao Wang

We present our novel deep multi-task learning method for medical image segmentation. Existing multi-task methods demand ground truth annotations for both the primary and auxiliary tasks. Contrary to it, we propose to generate the…

图像与视频处理 · 电气工程与系统科学 2022-04-06 Binod Bhattarai , Ronast Subedi , Rebati Raman Gaire , Eduard Vazquez , Danail Stoyanov

To address the semantic inconsistency issue with SAM or other single-image segmentation models handling image sequences, we introduce BYOCL. This novel model outperforms SAM in extensive experiments, showcasing its Hierarchical prototype…

计算机视觉与模式识别 · 计算机科学 2025-04-11 Jiayue Dai , Yunya Wang , Yihan Fang , Yuetong Chen , Butian Xiong

Label smoothing (LS) is a popular regularisation method for training neural networks as it is effective in improving test accuracy and is simple to implement. ``Hard'' one-hot labels are ``smoothed'' by uniformly distributing probability…

机器学习 · 计算机科学 2025-02-21 Guoxuan Xia , Olivier Laurent , Gianni Franchi , Christos-Savvas Bouganis

Semi-supervised learning (SSL) can reduce the need for large labelled datasets by incorporating unlabelled data into the training. This is particularly interesting for semantic segmentation, where labelling data is very costly and…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Sebastian Scherer , Robin Schön , Rainer Lienhart

Time series classification is a critical task in various domains, such as finance, healthcare, and sensor data analysis. Unsupervised contrastive learning has garnered significant interest in learning effective representations from time…

机器学习 · 计算机科学 2025-03-24 Huili Cai , Xiang Zhang , Xiaofeng Liu

Bayesian optimization (BO) is a powerful framework for optimizing expensive black-box objectives, yet extending it to graph-structured domains remains challenging due to the discrete and combinatorial nature of graphs. Existing approaches…

机器学习 · 计算机科学 2025-11-12 Shu Hong , Yongsheng Mei , Mahdi Imani , Tian Lan

SGD does not produce robust results on datasets with label noise. Because the gradients calculated according to the losses of the noisy samples cause the optimization process to go in the wrong direction. In this paper, as an alternative to…

机器学习 · 计算机科学 2022-03-29 Enes Dedeoglu , Himmet Toprak Kesgin , Mehmet Fatih Amasyali

Optimization of LLM training and inference configurations, such as hyperparameters, data mixtures, and prompts, is critical to performance, but it is often approached heuristically in practice, leading to potentially suboptimal outcomes. By…

机器学习 · 计算机科学 2026-05-19 Ruth Wan Theng Chew , Zhiliang Chen , Apivich Hemachandra , Bryan Kian Hsiang Low

Linear discriminant analysis (LDA) is a fundamental classification and dimension reduction method that achieves Bayes optimality under Gaussian mixture, but often struggles in high-dimensional settings where the covariance matrix cannot be…

统计计算 · 统计学 2026-04-06 Cencheng Shen , Yuexiao Dong