中文
相关论文

相关论文: Dynamical versus Bayesian Phase Transitions in a T…

200 篇论文

Generalized planning studies the construction of solution strategies that generalize across families of planning problems sharing a common domain model, formally defined by a transition function $\gamma : S \times A \rightarrow S$.…

人工智能 · 计算机科学 2026-03-23 Nitin Gupta , Vishal Pallagani , John A. Aydin , Biplav Srivastava

Despite the striking successes of deep neural networks trained with gradient-based optimization, these methods differ fundamentally from their biological counterparts. This gap raises key questions about how nature achieves robust,…

机器学习 · 计算机科学 2025-10-15 Mattia Scardecchia

Many empirical studies have provided evidence for the emergence of algorithmic mechanisms (abilities) in the learning of language models, that lead to qualitative improvements of the model capabilities. Yet, a theoretical characterization…

机器学习 · 计算机科学 2025-02-10 Hugo Cui , Freya Behrens , Florent Krzakala , Lenka Zdeborová

We study the dissipative dynamics of a one-dimensional bosonic system described in terms of the bipartite Bose-Hubbard model with alternating gain and loss. This model exhibits the $\mathcal{PT}$ symmetry under some specific conditions and…

量子气体 · 物理学 2023-03-07 Cătălin Paşcu Moca , Doru Sticlet , Balázs Dóra , Gergely Zaránd

Despite the non-convex optimization landscape, over-parametrized shallow networks are able to achieve global convergence under gradient descent. The picture can be radically different for narrow networks, which tend to get stuck in…

机器学习 · 统计学 2023-06-16 Rodrigo Veiga , Ludovic Stephan , Bruno Loureiro , Florent Krzakala , Lenka Zdeborová

Self supervised learning (SSL) is a machine learning paradigm where models learn to understand the underlying structure of data without explicit supervision from labeled samples. The acquired representations from SSL have demonstrated…

机器学习 · 计算机科学 2025-12-11 Yunshan Duan , Sinead Williamson

Dimensionality reduction represents a crucial step in extracting meaningful insights from Molecular Dynamics (MD) simulations. Conventional approaches, including linear methods such as principal component analysis as well as various…

软凝聚态物质 · 物理学 2025-10-10 Georg Diez , Nele Dethloff , Gerhard Stock

Modern deep networks are trained with stochastic gradient descent (SGD) whose key hyperparameters are the number of data considered at each step or batch size $B$, and the step size or learning rate $\eta$. For small $B$ and large $\eta$,…

机器学习 · 计算机科学 2024-02-29 Antonio Sclocchi , Matthieu Wyart

While it is relatively easier to train humanoid robots to mimic specific locomotion skills, it is more challenging to learn from various motions and adhere to continuously changing commands. These robots must accurately track motion…

We prove an inequality on decision trees on monotonic measures which generalizes the OSSS inequality on product spaces. As an application, we use this inequality to prove a number of new results on lattice spin models and their…

概率论 · 数学 2018-12-27 Hugo Duminil-Copin , Aran Raoufi , Vincent Tassion

We introduce an interpretable deep learning framework that predicts the cohesive energy of transition-metal alloys (TMAs) by embedding cohesion theory within graph neural networks (GNNs). Beyond accurate prediction of cohesive energy, a key…

材料科学 · 物理学 2025-09-11 Yang Huang , Shih-Han Wang , Shuyi Cao , Luke E. K. Achenie , Hongliang Xin

We derive low-dimensional, data-driven models for transitions among exact coherent states (ECSs) in one of the most studied canonical shear flows, the plane Couette flow. These one- or two-dimensional nonlinear models represent the…

流体动力学 · 物理学 2022-08-30 Bálint Kaszás , Mattia Cenedese , George Haller

Recently, different machine learning methods have been introduced to tackle the challenging few-shot learning scenario that is, learning from a small labeled dataset related to a specific task. Common approaches have taken the form of…

机器学习 · 计算机科学 2020-10-14 Massimiliano Patacchiola , Jack Turner , Elliot J. Crowley , Michael O'Boyle , Amos Storkey

Mathematical models of cognition are often memoryless and ignore potential fluctuations of their parameters. However, human cognition is inherently dynamic. Thus, we propose to augment mechanistic cognitive models with a temporal dimension…

统计方法学 · 统计学 2023-09-21 Lukas Schumacher , Paul-Christian Bürkner , Andreas Voss , Ullrich Köthe , Stefan T. Radev

Offline Reinforcement learning is commonly used for sequential decision-making in domains such as healthcare and education, where the rewards are known and the transition dynamics $T$ must be estimated on the basis of batch data. A key…

机器学习 · 计算机科学 2023-08-10 Leo Benac , Sonali Parbhoo , Finale Doshi-Velez

We study the phase transitions of three-dimensional (3D) classical O(3) model and the two-dimensional (2D) classical XY model, as well as both the quantum phase transitions of 2D and 3D dimerized spin-1/2 antiferromagnets, using the…

无序系统与神经网络 · 物理学 2021-01-04 D. -R. Tan , F. -J. Jiang

Stochastic Gradient Langevin Dynamics (SGLD) has emerged as a key MCMC algorithm for Bayesian learning from large scale datasets. While SGLD with decreasing step sizes converges weakly to the posterior distribution, the algorithm is often…

机器学习 · 统计学 2018-11-27 Nicolas Brosse , Alain Durmus , Eric Moulines

Classical machine learning has proven remarkably useful in post-processing quantum data, yet typical learning algorithms often require prior training to be effective. In this work, we employ a tensorial kernel support vector machine…

Representations learned by self-supervised approaches are generally considered to possess sufficient generalizability and discriminability. However, we disclose a nontrivial mutual-exclusion relationship between these critical…

人工智能 · 计算机科学 2024-12-03 Jiangmeng Li , Zehua Zang , Qirui Ji , Chuxiong Sun , Wenwen Qiang , Junge Zhang , Changwen Zheng , Fuchun Sun , Hui Xiong

Piecewise growth mixture models (PGMM) are a flexible and useful class of methods for analyzing segmented trends in individual growth trajectory over time, where the individuals come from a mixture of two or more latent classes. These…

统计方法学 · 统计学 2018-10-18 Eric F Lock , Nidhi Kohli , Maitreyee Bose