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相关论文: HIGlow: Conditional Normalizing Flows for High-Fid…

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We extend the results of previous analyses towards constraining the abundance and clustering of post-reionization ($z \sim 0-5$) neutral hydrogen (HI) systems using a halo model framework. We work with a comprehensive HI dataset including…

宇宙学与河外天体物理 · 物理学 2017-08-23 Hamsa Padmanabhan , Alexandre Refregier , Adam Amara

Safe and reliable state estimation techniques are a critical component of next-generation robotic systems. Agents in such systems must be able to reason about the intentions and trajectories of other agents for safe and efficient motion…

机器人学 · 计算机科学 2023-06-28 Harrison Delecki , Liam A. Kruse , Marc R. Schlichting , Mykel J. Kochenderfer

In this work, we investigate the use of normalizing flows to model conditional distributions. In particular, we use our proposed method to analyze inverse problems with invertible neural networks by maximizing the posterior likelihood. Our…

机器学习 · 计算机科学 2019-11-07 Zhisheng Xiao , Qing Yan , Yali Amit

To model manifold data using normalizing flows, we employ isometric autoencoders to design embeddings with explicit inverses that do not distort the probability distribution. Using isometries separates manifold learning and density…

机器学习 · 计算机科学 2023-05-09 Eike Cramer , Felix Rauh , Alexander Mitsos , Raúl Tempone , Manuel Dahmen

Systems biology relies on mathematical models that often involve complex and intractable likelihood functions, posing challenges for efficient inference and model selection. Generative models, such as normalizing flows, have shown…

定量方法 · 定量生物学 2023-12-06 Vincent D. Zaballa , Elliot E. Hui

Modeling complex systems that evolve toward equilibrium distributions is important in various physical applications, including molecular dynamics and robotic control. These systems often follow the stochastic gradient descent of an…

机器学习 · 计算机科学 2024-10-16 Christopher Iliffe Sprague , Arne Elofsson , Hossein Azizpour

We extend the canonical problems of simulation and optimization of steady-state gas flows in pipeline networks with compressors to the transport of mixtures of highly heterogeneous gases injected throughout a network. Our study is motivated…

最优化与控制 · 数学 2022-12-05 Saif R. Kazi , Kaarthik Sundar , Shriram Srinivasan , Anatoly Zlotnik

Normalizing flows are a class of deep generative models that provide a promising route to sample lattice field theories more efficiently than conventional Monte Carlo simulations. In this work we show that the theoretical framework of…

高能物理 - 格点 · 物理学 2022-07-07 Michele Caselle , Elia Cellini , Alessandro Nada , Marco Panero

This study focuses on the novel application of a normalizing flow as a method of domain adaptation. Normalizing flows offer a way to transform data points between two different distributions. The present study investigates a method of…

数据分析、统计与概率 · 物理学 2024-05-16 Rowan Kelleher , Anselm Vossen

In this paper, we explore the potential of generative machine learning models as an alternative to the computationally expensive Monte Carlo (MC) simulations commonly used by the Large Hadron Collider (LHC) experiments. Our objective is to…

高能物理 - 实验 · 物理学 2023-11-21 Allison Xu , Shuo Han , Xiangyang Ju , Haichen Wang

Alongside optimization-based planners, sampling-based approaches are often used in trajectory planning for autonomous driving due to their simplicity. Model predictive path integral control is a framework that builds upon optimization…

机器人学 · 计算机科学 2026-02-09 Georg Rabenstein , Lars Ullrich , Knut Graichen

Normalizing flows are a powerful technique for obtaining reparameterizable samples from complex multimodal distributions. Unfortunately, current approaches are only available for the most basic geometries and fall short when the underlying…

机器学习 · 统计学 2021-05-03 Luca Falorsi

Normalizing flows are bijective mappings between inputs and latent representations with a fully factorized distribution. They are very attractive due to exact likelihood valuation and efficient sampling. However, their effective capacity is…

机器学习 · 计算机科学 2021-11-03 Matej Grcić , Ivan Grubišić , Siniša Šegvić

We present $\nu$-Flows, a novel method for restricting the likelihood space of neutrino kinematics in high energy collider experiments using conditional normalizing flows and deep invertible neural networks. This method allows the recovery…

高能物理 - 唯象学 · 物理学 2023-07-19 Matthew Leigh , John Andrew Raine , Knut Zoch , Tobias Golling

Simulation-free methods for training continuous-time generative models construct probability paths that go between noise distributions and individual data samples. Recent works, such as Flow Matching, derived paths that are optimal for each…

Flow maps enable high-quality image generation in a single forward pass. However, unlike iterative diffusion models, their lack of an explicit sampling trajectory impedes incorporating external constraints for conditional generation and…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Abbas Mammadov , So Takao , Bohan Chen , Ricardo Baptista , Morteza Mardani , Yee Whye Teh , Julius Berner

Continuous diffusion and flow matching models could represent a powerful alternative to autoregressive approaches for language modelling (LM), as they unlock a host of advantages currently reserved for continuous modalities, including…

Normalizing flows are a class of machine learning models used to construct a complex distribution through a bijective mapping of a simple base distribution. We demonstrate that normalizing flows are particularly well suited as a Monte Carlo…

核理论 · 物理学 2021-08-11 Jack Brady , Pengsheng Wen , Jeremy W. Holt

Simulated events are key ingredients in almost all high-energy physics analyses. However, imperfections in the simulation can lead to sizeable differences between the observed data and simulated events. The effects of such mismodelling on…

高能物理 - 唯象学 · 物理学 2024-09-09 Caio Cesar Daumann , Mauro Donega , Johannes Erdmann , Massimiliano Galli , Jan Lukas Späh , Davide Valsecchi

We propose a hierarchical normalizing flow model for generating molecular graphs. The model produces new molecular structures from a single-node graph by recursively splitting every node into two. All operations are invertible and can be…

化学物理 · 物理学 2021-06-11 Maksim Kuznetsov , Daniil Polykovskiy