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Methods based on partial least squares (PLS) regression, which has recently gained much attention in the analysis of high-dimensional genomic datasets, have been developed since the early 2000s for performing variable selection. Most of…

统计方法学 · 统计学 2021-08-31 Jérémy Magnanensi , Myriam Maumy-Bertrand , Nicolas Meyer , Frédéric Bertrand

Denoising Diffusion Probabilistic Models (DDPMs) are powerful generative deep learning models that have been very successful at image generation, and, very recently, in path planning and control. In this paper, we investigate how to…

机器人学 · 计算机科学 2024-11-18 Michiel Nikken , Nicolò Botteghi , Wesley Roozing , Federico Califano

Policy learning in robot-assisted surgery (RAS) lacks data efficient and versatile methods that exhibit the desired motion quality for delicate surgical interventions. To this end, we introduce Movement Primitive Diffusion (MPD), a novel…

In this paper, we reveal that metric learning would suffer from serious inseparable problem if without informative sample mining. Since the inseparable samples are often mixed with hard samples, current informative sample mining strategies…

机器学习 · 计算机科学 2022-01-21 Kun Song , Junwei Han , Gong Cheng , Jiwen Lu , Feiping Nie

This paper proposes an introspective deep metric learning (IDML) framework for uncertainty-aware comparisons of images. Conventional deep metric learning methods focus on learning a discriminative embedding to describe the semantic features…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Chengkun Wang , Wenzhao Zheng , Zheng Zhu , Jie Zhou , Jiwen Lu

Optimal margin Distribution Machine (ODM) is a newly proposed statistical learning framework rooting in the novel margin theory, which demonstrates better generalization performance than the traditional large margin based counterparts.…

机器学习 · 计算机科学 2023-06-13 Yilin Wang , Nan Cao , Teng Zhang , Xuanhua Shi , Hai Jin

As overparameterized models become increasingly prevalent, training loss alone offers limited insight into generalization performance. While smoothness has been linked to improved generalization across various settings, directly enforcing…

机器学习 · 计算机科学 2025-09-30 Yifan Hao , Yanxin Lu , Hanning Zhang , Xinwei Shen , Tong Zhang

Accurate prediction of enzymatic activity from amino acid sequences could drastically accelerate enzyme engineering for applications such as bioremediation and therapeutics development. In recent years, Protein Language Model (PLM)…

定量方法 · 定量生物学 2025-05-07 Duncan F. Muir , Parker Grosjean , Margaux M. Pinney , Michael J. Keiser

A novel approach for non-intrusive uncertainty propagation is proposed. Our approach overcomes the limitation of many traditional methods, such as generalised polynomial chaos methods, which may lack sufficient accuracy when the quantity of…

数值分析 · 数学 2018-03-20 Yous van Halder , Benjamin Sanderse , Barry Koren

Deep learning (DL) models are piquing high interest and scaling at an unprecedented rate. To this end, a handful of tiled accelerators have been proposed to support such large-scale training tasks. However, these accelerators often…

分布式、并行与集群计算 · 计算机科学 2024-06-07 Jiahao Fang , Huizheng Wang , Qize Yang , Dehao Kong , Xu Dai , Jinyi Deng , Yang Hu , Shouyi Yin

We propose Diffusion Model Variational Inference (DMVI), a novel method for automated approximate inference in probabilistic programming languages (PPLs). DMVI utilizes diffusion models as variational approximations to the true posterior…

机器学习 · 计算机科学 2023-11-23 Simon Dirmeier , Fernando Perez-Cruz

Stochastic gradient methods are dominant in nonconvex optimization especially for deep models but have low asymptotical convergence due to the fixed smoothness. To address this problem, we propose a simple yet effective method for improving…

机器学习 · 计算机科学 2018-05-25 Jun Li , Hongfu Liu , Bineng Zhong , Yue Wu , Yun Fu

This article presents a three-step framework for learning and solving partial differential equations (PDEs) using kernel methods. Given a training set consisting of pairs of noisy PDE solutions and source/boundary terms on a mesh, kernel…

机器学习 · 统计学 2023-04-03 Da Long , Nicole Mrvaljevic , Shandian Zhe , Bamdad Hosseini

Manifold learning flows are a class of generative modelling techniques that assume a low-dimensional manifold description of the data. The embedding of such a manifold into the high-dimensional space of the data is achieved via learnable…

机器学习 · 统计学 2025-03-07 Kyriakos Flouris , Ender Konukoglu

Recent Pre-trained Language Models (PLMs) usually only provide users with the inference APIs, namely the emerging Model-as-a-Service (MaaS) setting. To adapt MaaS PLMs to downstream tasks without accessing their parameters and gradients,…

计算与语言 · 计算机科学 2025-06-03 Zifeng Cheng , Zhaoling Chen , Zhiwei Jiang , Yafeng Yin , Cong Wang , Shiping Ge , Qing Gu

Continuous pseudo-labeling (PL) algorithms such as slimIPL have recently emerged as a powerful strategy for semi-supervised learning in speech recognition. In contrast with earlier strategies that alternated between training a model and…

机器学习 · 计算机科学 2023-02-01 Tatiana Likhomanenko , Ronan Collobert , Navdeep Jaitly , Samy Bengio

Model reduction of high-dimensional dynamical systems alleviates computational burdens faced in various tasks from design optimization to model predictive control. One popular model reduction approach is based on projecting the governing…

动力系统 · 数学 2018-08-24 Francisco J. Gonzalez , Maciej Balajewicz

Undersampling is a common method in Magnetic Resonance Imaging (MRI) to subsample the number of data points in k-space, reducing acquisition times at the cost of decreased image quality. A popular approach is to employ undersampling…

图像与视频处理 · 电气工程与系统科学 2023-08-23 Tobias Weber , Michael Ingrisch , Bernd Bischl , David Rügamer

A common challenge in nonparametric inference is its high computational complexity when data volume is large. In this paper, we develop computationally efficient nonparametric testing by employing a random projection strategy. In the…

统计理论 · 数学 2018-02-20 Meimei Liu , Zuofeng Shang , Guang Cheng

Machine learning for scientific applications faces the challenge of limited data. We propose a framework that leverages a priori known physics to reduce overfitting when training on relatively small datasets. A deep neural network is…

机器学习 · 计算机科学 2019-11-22 Jonathan B. Freund , Jonathan F. MacArt , Justin Sirignano