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Neural surrogate models for computational fluid dynamics (CFD) are typically trained as forward operators that map explicit problem specifications, such as geometry and boundary conditions, to solution fields. This ties the model to the…

机器学习 · 计算机科学 2026-05-29 Jonas Weidner , Yeray Martin-Ruisanchez , Daniel Rueckert , Benedikt Wiestler , Julian Suk

Learning-based planners are sensitive to the long-tailed distribution of driving data. Common maneuvers dominate datasets, while dangerous or rare scenarios are sparse. This imbalance can bias models toward the frequent cases and degrade…

机器人学 · 计算机科学 2026-02-18 Lingguang Wang , Ömer Şahin Taş , Marlon Steiner , Christoph Stiller

We examine the applicability of diffusive lattice Boltzmann methods to simulate the fluid transport through barrier coatings, finding excellent agreement between simulations and analytical predictions for standard parameter choices. To…

计算物理 · 物理学 2017-06-28 Kyle T. Strand , Aaron J. Feickert , Alexander J. Wagner

This work presents a comprehensive framework for enhanced diffusion modeling in fluid-structure interactions by combining the Immersed Boundary Method (IBM) with stochastic trajectories and high-order spectral boundary conditions. Using…

偏微分方程分析 · 数学 2024-10-31 Rômulo Damasclin Chaves dos Santos , Jorge Henrique de Oliveira Sales

Recent studies have demonstrated the advantages of fractional-order calculus tools for probing the viscoelastic properties of collagenous tissue, characterizing the arterial blood flow and red cell membrane mechanics, and modeling the…

系统与控制 · 电气工程与系统科学 2020-10-21 Mohamed A. Bahloul , Taous-Meriem Laleg Kirati

Understanding disease progression is a central clinical challenge with direct implications for early diagnosis and personalized treatment. While recent generative approaches have attempted to model progression, key mismatches remain:…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Hao Chen , Rui Yin , Yifan Chen , Qi Chen , Chao Li

Stochastic processes generated by non-stationary distributions are difficult to represent with conventional models such as Gaussian processes. This work presents Recurrent Autoregressive Flows as a method toward general stochastic process…

机器学习 · 计算机科学 2020-06-20 John Mern , Peter Morales , Mykel J. Kochenderfer

This paper presents a novel machine-learning framework for reconstructing low-order gust-encounter flow field and lift coefficients from sparse, noisy surface pressure measurements. Our study thoroughly investigates the time-varying…

机器学习 · 计算机科学 2025-06-25 Hanieh Mousavi , Jeff D. Eldredge

In computational pathology, several foundation models have recently emerged and demonstrated enhanced learning capability for analyzing pathology images. However, adapting these models to various downstream tasks remains challenging,…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Jeaung Lee , Jeewoo Lim , Keunho Byeon , Jin Tae Kwak

Conformal prediction provides a distribution-free framework for uncertainty quantification via prediction sets with exact finite-sample coverage. In low dimensions these sets are easy to interpret, but in high-dimensional or structured…

机器学习 · 统计学 2026-05-08 Trevor Harris

Three-dimensional cardiovascular fluid dynamics simulations typically require computation of several cardiac cycles before they reach a periodic solution, rendering them computationally expensive. Furthermore, there is currently no…

计算工程、金融与科学 · 计算机科学 2021-06-28 Martin R. Pfaller , Jonathan Pham , Nathan M. Wilson , David W. Parker , Alison L. Marsden

Boundary conditions at the interface between the free-flow region and the adjacent porous medium is a key issue for physically consistent modeling and accurate numerical simulation of flow and transport processes in coupled systems due to…

数值分析 · 数学 2020-06-23 Elissa Eggenweiler , Iryna Rybak

Visually-guided acoustic highlighting seeks to rebalance audio in alignment with the accompanying video, creating a coherent audio-visual experience. While visual saliency and enhancement have been widely studied, acoustic highlighting…

音频与语音处理 · 电气工程与系统科学 2026-02-05 Hugo Malard , Gael Le Lan , Daniel Wong , David Lou Alon , Yi-Chiao Wu , Sanjeel Parekh

Interpretability is essential in medical imaging to ensure that clinicians can comprehend and trust artificial intelligence models. In this paper, we propose a novel interpretable approach that combines attribute regularization of the…

图像与视频处理 · 电气工程与系统科学 2023-12-15 Maxime Di Folco , Cosmin I. Bercea , Julia A. Schnabel

Object counting models suffer when deployed across domains with differing density variety, since density shifts are inherently task-relevant and violate standard domain adaptation assumptions. To address this, we propose a theoretical…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Zhuonan Liang , Dongnan Liu , Jianan Fan , Yaxuan Song , Qiang Qu , Runnan Chen , Yu Yao , Peng Fu , Weidong Cai

This dissertation focuses on modern causal inference under uncertainty and data restrictions, with applications to neoadjuvant clinical trials, distributed data networks, and robust individualized decision making. In the first project, we…

统计方法学 · 统计学 2023-01-24 Xiaoqing Tan

How should researchers conduct causal inference when the outcome of interest is latent and measured imperfectly by multiple indicators? We develop a general nonparametric framework for identifying and estimating average treatment effects on…

统计方法学 · 统计学 2026-04-22 Jiawei Fu , Donald P. Green

Obtaining samples from the posterior distribution of inverse problems with expensive forward operators is challenging especially when the unknowns involve the strongly heterogeneous Earth. To meet these challenges, we propose a…

Many biological systems evolve through continuous local dynamics while switching between latent regimes defined by learning, stimulus context, internal state, or developmental stage. These processes are often observed only as unpaired…

机器学习 · 计算机科学 2026-05-12 Josue Ortega Caro , Yongxu Zhang , Hannah M Batchelor , Sizhuang He , Jessica Cardin , Shreya Saxena

We propose a novel conditional diffusion model for contextual portfolio optimization that learns the cross-sectional distribution of next-day stock returns conditioned on high-dimensional asset-specific factors. Our model leverages a…

投资组合管理 · 定量金融 2026-04-17 Xuefeng Gao , Mengying He , Xuedong He