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Modelling robot dynamics accurately is essential for control, motion optimisation and safe human-robot collaboration. Given the complexity of modern robotic systems, dynamics modelling remains non-trivial, mostly in the presence of…

机器人学 · 计算机科学 2022-05-11 David Jorge , Gabriella Pizzuto , Michael Mistry

Deep learning architectures are an extremely powerful tool for recognizing and classifying images. However, they require supervised learning and normally work on vectors the size of image pixels and produce the best results when trained on…

机器学习 · 计算机科学 2020-10-20 Ryan Burt , Nina N. Thigpen , Andreas Keil , Jose C. Principe

We propose a geometry-to-flow diffusion model that utilizes obstacle shape as input to predict a flow field around an obstacle. The model is based on a learnable Markov transition kernel to recover the data distribution from the Gaussian…

流体动力学 · 物理学 2025-12-30 Jiajun Hu , Zhen Lu , Yue Yang

We study minimal attention-only transformers under all-token corruption and show they admit a two-stage empirical Bayes interpretation. A single attention step computes a kernel-weighted posterior mean with respect to the empirical…

机器学习 · 计算机科学 2026-05-29 Matthew Smart , Soumya Ganguly , Nilava Metya , Alexandre V. Morozov , Anirvan M. Sengupta

Flow Matching (FM) underpins many state-of-the-art generative models, yet recent results indicate that Transition Matching (TM) can achieve higher quality with fewer sampling steps. This work answers the question of when and why TM…

机器学习 · 计算机科学 2026-05-22 Jaihoon Kim , Rajarshi Saha , Minhyuk Sung , Youngsuk Park

We study location-scale mixture priors for nonparametric statistical problems, including multivariate regression, density estimation and classification. We show that a rate-adaptive procedure can be obtained if the prior is properly…

统计理论 · 数学 2012-11-12 R. de Jonge , J. H. van Zanten

Cross-attention is an important component of neural machine translation (NMT), which is always realized by dot-product attention in previous methods. However, dot-product attention only considers the pair-wise correlation between words,…

计算与语言 · 计算机科学 2021-09-15 Shaolei Zhang , Yang Feng

Learning the kernel parameters for Gaussian processes is often the computational bottleneck in applications such as online learning, Bayesian optimization, or active learning. Amortizing parameter inference over different datasets is a…

机器学习 · 计算机科学 2023-06-19 Matthias Bitzer , Mona Meister , Christoph Zimmer

Autonomous driving requires reasoning about interactions with surrounding traffic. A prevailing approach is large-scale imitation learning on expert driving datasets, aimed at generalizing across diverse real-world scenarios. For online…

Vehicle trajectory prediction is crucial for advancing autonomous driving and advanced driver assistance systems (ADAS), enhancing road safety and traffic efficiency. While traditional methods have laid foundational work, modern deep…

机器学习 · 计算机科学 2024-06-19 Junwei You , Haotian Shi , Keshu Wu , Keke Long , Sicheng Fu , Sikai Chen , Bin Ran

We present a novel property-preserving kernel-based operator learning method for incompressible flows governed by the incompressible Navier--Stokes equations. Traditional numerical solvers incur significant computational costs to respect…

流体动力学 · 物理学 2026-04-16 Ramansh Sharma , Matthew Lowery , Houman Owhadi , Varun Shankar

We study the fundamental optimization principles of self-attention, the defining mechanism of transformers, by analyzing the implicit bias of gradient-based optimizers in training a self-attention layer with a linear decoder in binary…

机器学习 · 计算机科学 2025-04-01 Bhavya Vasudeva , Puneesh Deora , Christos Thrampoulidis

We consider the problem of learning Stochastic Differential Equations of the form $dX_t = f(X_t)dt+\sigma(X_t)dW_t $ from one sample trajectory. This problem is more challenging than learning deterministic dynamical systems because one…

机器学习 · 统计学 2022-12-28 Matthieu Darcy , Boumediene Hamzi , Giulia Livieri , Houman Owhadi , Peyman Tavallali

Many techniques for data science and uncertainty quantification demand efficient tools to handle Gaussian random fields, which are defined in terms of their mean functions and covariance operators. Recently, parameterized Gaussian random…

数值分析 · 数学 2021-05-11 Daniel Kressner , Jonas Latz , Stefano Massei , Elisabeth Ullmann

Transformers excel across domains, yet their quadratic attention complexity poses a barrier to scaling. Random-feature attention, as in Performers, can reduce this cost to linear in the sequence length by approximating the softmax kernel…

机器学习 · 计算机科学 2026-03-05 Amirhossein Farzam , Hossein Mobahi , Nolan Andrew Miller , Luke Sernau

Flow matching has recently emerged as a promising alternative to diffusion-based generative models, particularly for text-to-image generation. Despite its flexibility in allowing arbitrary source distributions, most existing approaches rely…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Junwan Kim , Jiho Park , Seonghu Jeon , Seungryong Kim

Distributed model training suffers from communication bottlenecks due to frequent model updates transmitted across compute nodes. To alleviate these bottlenecks, practitioners use gradient compression techniques like sparsification,…

机器学习 · 计算机科学 2020-11-02 Saurabh Agarwal , Hongyi Wang , Kangwook Lee , Shivaram Venkataraman , Dimitris Papailiopoulos

Representing turbulent flow fields in a compact yet physically faithful form remains a central challenge in computational fluid dynamics. We propose a continuous parametric representation based on localized Gaussian primitives, in which the…

流体动力学 · 物理学 2026-04-21 Dhanush Vittal Shenoy , Steven H. Frankel

We propose a generative multivariate posterior sampler via flow matching. It offers a simple training objective, and does not require access to likelihood evaluation. The method learns a dynamic, block-triangular velocity field in the joint…

机器学习 · 统计学 2026-04-02 Percy S. Zhai , So Won Jeong , Veronika Ročková

Self-attention is usually described as a flexible, content-adaptive way to mix a token with information from its past. We reinterpret causal self-attention transformers, the backbone of modern foundation models, within a probabilistic…