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State-of-the-art neural models typically encode document-query pairs using cross-attention for re-ranking. To this end, models generally utilize an encoder-only (like BERT) paradigm or an encoder-decoder (like T5) approach. These paradigms,…

Training deep generative models like Variational Autoencoders (VAEs) requires propagating gradients through stochastic latent variables, which introduces estimation variance that can slow convergence and degrade performance. In this paper,…

机器学习 · 计算机科学 2026-02-27 Zilei Shao , Anji Liu , Guy Van den Broeck

We design a physics-aware auto-encoder to specifically reduce the dimensionality of solutions arising from convection-dominated nonlinear physical systems. Although existing nonlinear manifold learning methods seem to be compelling tools to…

动力系统 · 数学 2022-09-15 Rambod Mojgani , Maciej Balajewicz

Linear encoding of sparse vectors is widely popular, but is commonly data-independent -- missing any possible extra (but a priori unknown) structure beyond sparsity. In this paper we present a new method to learn linear encoders that adapt…

In this paper, we introduce the proper latent decomposition (PLD) as a generalization of the proper orthogonal decomposition (POD) on manifolds. PLD is a nonlinear reduced-order modeling technique for compressing high-dimensional data into…

机器学习 · 计算机科学 2024-12-03 Daniel Kelshaw , Luca Magri

This paper proposes a new type of generative model that is able to quickly learn a latent representation without an encoder. This is achieved using empirical Bayes to calculate the expectation of the posterior, which is implemented by…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Sam Bond-Taylor , Chris G. Willcocks

Variational Autoencoders (VAEs) are well-established as a principled approach to probabilistic unsupervised learning with neural networks. Typically, an encoder network defines the parameters of a Gaussian distributed latent space from…

机器学习 · 计算机科学 2025-05-16 Alan Jeffares , Liyuan Liu

This paper presents a new data-driven non-intrusive reduced-order model(NIROM) that outperforms the traditional Proper orthogonal decomposition (POD) based reducedorder model. This is achieved by using Auto-Encoder(AE) and attention-based…

计算物理 · 物理学 2021-09-07 R. Fu , D. Xiao , I. M. Navon , C. Wang

Few-step image generation has seen rapid progress, with consistency and meanflow-based methods significantly reducing the number of sampling steps. Despite their low inference cost, these approaches often suffer from training instability…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Tung Do , Thuan Hoang Nguyen , Hao Li

High-performance machine learning tools in particle physics rest on two complementary directions: encoding symmetries explicitly in the architecture, and implicitly learning the structure of the data through large-scale (pre-) training. We…

高能物理 - 唯象学 · 物理学 2026-03-23 Victor Breso-Pla , Kevin Greif , Vinicius Mikuni , Benjamin Nachman , Tilman Plehn , Tanvi Wamorkar , Daniel Whiteson

In this work, we investigate the use of data-driven equation discovery for dynamical systems to model and forecast continuous-time dynamics of unconstrained optimization problems. To avoid expensive evaluations of the objective function and…

最优化与控制 · 数学 2026-02-19 Grant Norman , Conor Rowan , Kurt Maute , Alireza Doostan

A combined autoencoder (AE) and neural ordinary differential equation (NODE) framework has been used as a data-driven reduced-order model for time integration of a stiff reacting system. In this study, a new loss term using a latent…

计算物理 · 物理学 2026-03-18 Mert Yakup Baykan , Vijayamanikandan Vijayarangan , Dong-hyuk Shin , Hong G. Im

In designing efficient feedback control laws for fluid flow, the modern control theory can serve as a powerful tool if the model can be represented by a linear ordinary differential equation (ODE). However, it is generally difficult to find…

流体动力学 · 物理学 2023-11-16 Hiroshi Omichi , Takeru Ishize , Koji Fukagata

Entity alignment (EA), a pivotal process in integrating multi-source Knowledge Graphs (KGs), seeks to identify equivalent entity pairs across these graphs. Most existing approaches regard EA as a graph representation learning task,…

信息检索 · 计算机科学 2024-04-18 Yuanyi Wang , Haifeng Sun , Jingyu Wang , Qi Qi , Shaoling Sun , Jianxin Liao

End-to-end autonomous driving has made impressive progress in recent years. Existing methods usually adopt the decoupled encoder-decoder paradigm, where the encoder extracts hidden features from raw sensor data, and the decoder outputs the…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Xiaosong Jia , Penghao Wu , Li Chen , Jiangwei Xie , Conghui He , Junchi Yan , Hongyang Li

Deep neural networks often under-perform on tabular data due to their sensitivity to irrelevant features and a spectral bias toward smooth, low-frequency functions. These limitations hinder their ability to capture the sharp, high-frequency…

机器学习 · 计算机科学 2025-11-11 Erel Naor , Ofir Lindenbaum

Neural implicit shape representations are an emerging paradigm that offers many potential benefits over conventional discrete representations, including memory efficiency at a high spatial resolution. Generalizing across shapes with such…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Vincent Sitzmann , Eric R. Chan , Richard Tucker , Noah Snavely , Gordon Wetzstein

Finding latent structures in data is drawing increasing attention in diverse fields such as image and signal processing, fluid dynamics, and machine learning. In this work we examine the problem of finding the main modes of gradient flows.…

动力系统 · 数学 2020-12-29 Ido Cohen , Omri Azencot , Pavel Lifshitz , Guy Gilboa

A common strategy for the dimensionality reduction of nonlinear partial differential equations relies on the use of the proper orthogonal decomposition (POD) to identify a reduced subspace and the Galerkin projection for evolving dynamics…

流体动力学 · 物理学 2021-03-31 Romit Maulik , Bethany Lusch , Prasanna Balaprakash

Anomaly detection is referred to as a process in which the aim is to detect data points that follow a different pattern from the majority of data points. Anomaly detection methods suffer from several well-known challenges that hinder their…

机器学习 · 计算机科学 2021-08-31 Kasra Babaei , Zhi Yuan Chen , Tomas Maul