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Estimating the expectation of a real-valued function of a random variable from sample data is a critical aspect of statistical analysis, with far-reaching implications in various applications. Current methodologies typically assume…

A unique feature of Recurrent Neural Networks (RNNs) is that it incrementally processes input sequences. In this research, we aim to uncover the inherent generalization properties, i.e., inductive bias, of RNNs with respect to how…

机器学习 · 计算机科学 2023-05-17 Taiga Ishii , Ryo Ueda , Yusuke Miyao

Variational inference with normalizing flows (NFs) is an increasingly popular alternative to MCMC methods. In particular, NFs based on coupling layers (Real NVPs) are frequently used due to their good empirical performance. In theory,…

机器学习 · 统计学 2024-02-27 Daniel Andrade

Self-supervised feed-forward methods for scene flow estimation offer real-time efficiency, but their supervision from two-frame point correspondences is unreliable and often breaks down under occlusions. Multi-frame supervision has the…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Qingwen Zhang , Chenhan Jiang , Xiaomeng Zhu , Yunqi Miao , Yushan Zhang , Olov Andersson , Patric Jensfelt

We introduce the Flow Stochastic Segmentation Network (Flow-SSN), a generative segmentation model family featuring discrete-time autoregressive and modern continuous-time flow variants. We prove fundamental limitations of the low-rank…

计算机视觉与模式识别 · 计算机科学 2025-07-28 Fabio De Sousa Ribeiro , Omar Todd , Charles Jones , Avinash Kori , Raghav Mehta , Ben Glocker

By chaining a sequence of differentiable invertible transformations, normalizing flows (NF) provide an expressive method of posterior approximation, exact density evaluation, and sampling. The trend in normalizing flow literature has been…

机器学习 · 计算机科学 2020-10-20 Robert Giaquinto , Arindam Banerjee

Graph generation is a fundamental task with broad applications, such as drug discovery. Recently, discrete flow matching-based graph generation, \aka, graph flow model (GFM), has emerged due to its superior performance and flexible…

机器学习 · 计算机科学 2026-03-12 Baoheng Zhu , Deyu Bo , Delvin Ce Zhang , Xiao Wang

Despite their popularity, to date, the application of normalizing flows on categorical data stays limited. The current practice of using dequantization to map discrete data to a continuous space is inapplicable as categorical data has no…

机器学习 · 计算机科学 2021-01-22 Phillip Lippe , Efstratios Gavves

Despite the widespread success of Graph Neural Networks (GNNs), understanding the reasons behind their specific predictions remains challenging. Existing explainability methods face a trade-off that gradient-based approaches are…

机器学习 · 计算机科学 2026-01-22 Bizu Feng , Zhimu Yang , Shaode Yu , Zixin Hu

In this paper, we have proposed STC-GEF, a novel Spatio-Temporal Cross-platform Graph Embedding Fusion approach for the urban traffic flow prediction. We have designed a spatial embedding module based on graph convolutional networks (GCN)…

机器学习 · 计算机科学 2022-08-23 Mahan Tabatabaie , James Maniscalco , Connor Lynch , Suining He

Probabilistic graphical models provide a powerful tool to describe complex statistical structure, with many real-world applications in science and engineering from controlling robotic arms to understanding neuronal computations. A major…

人工智能 · 计算机科学 2023-05-04 Yicheng Fei , Xaq Pitkow

Deep Gaussian processes (DGPs), a hierarchical composition of GP models, have successfully boosted the expressive power of their single-layer counterpart. However, it is impossible to perform exact inference in DGPs, which has motivated the…

机器学习 · 计算机科学 2021-05-27 Haibin Yu , Dapeng Liu , Yizhou Chen , Bryan Kian Hsiang Low , Patrick Jaillet

With the acceleration of urbanization, intelligent transportation systems have an increasing demand for accurate traffic flow prediction. This paper proposes a novel Graph Enhanced Spatio-temporal Hierarchical Inference Network (GEnSHIN) to…

机器学习 · 计算机科学 2026-01-09 Zhiyan Zhou , Junjie Liao , Manho Zhang , Yingyi Liao , Ziai Wang

Two fundamental problems in unsupervised learning are efficient inference for latent-variable models and robust density estimation based on large amounts of unlabeled data. Algorithms for the two tasks, such as normalizing flows and…

机器学习 · 统计学 2018-08-02 Changyou Chen , Chunyuan Li , Liqun Chen , Wenlin Wang , Yunchen Pu , Lawrence Carin

Video denoising aims at removing noise from videos to recover clean ones. Some existing works show that optical flow can help the denoising by exploiting the additional spatial-temporal clues from nearby frames. However, the flow estimation…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Jiezhang Cao , Qin Wang , Jingyun Liang , Yulun Zhang , Kai Zhang , Radu Timofte , Luc Van Gool

Consistency models imitate the multi-step sampling of score-based diffusion in a single forward pass of a neural network. They can be learned in two ways: consistency distillation and consistency training. The former relies on the true…

Effective String Theory (EST) is a powerful tool used to study confinement in pure gauge theories by modeling the confining flux tube connecting a static quark-anti-quark pair as a thin vibrating string. Recently, flow-based samplers have…

高能物理 - 格点 · 物理学 2025-01-09 Michele Caselle , Elia Cellini , Alessandro Nada

This paper addresses the challenges of fault prediction and delayed response in distributed systems by proposing an intelligent prediction method based on temporal feature learning. The method takes multi-dimensional performance metric…

分布式、并行与集群计算 · 计算机科学 2025-05-28 Yang Wang , Wenxuan Zhu , Xuehui Quan , Heyi Wang , Chang Liu , Qiyuan Wu

This study aims to overcome the limitations of conventional deep-learning approaches based on convolutional neural networks in complex geometries and unstructured meshes by exploring the potential of Graph U-Nets for unsteady flow-field…

机器学习 · 计算机科学 2024-10-18 Sunwoong Yang , Ricardo Vinuesa , Namwoo Kang

This paper introduces Generalized Attention Flow (GAF), a novel feature attribution method for Transformer-based models to address the limitations of current approaches. By extending Attention Flow and replacing attention weights with the…

机器学习 · 计算机科学 2025-02-25 Behrooz Azarkhalili , Maxwell Libbrecht