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Symbolic Regression is the study of algorithms that automate the search for analytic expressions that fit data. While recent advances in deep learning have generated renewed interest in such approaches, the development of symbolic…

天体物理仪器与方法 · 物理学 2023-12-27 Wassim Tenachi , Rodrigo Ibata , Foivos I. Diakogiannis

The problem with existing camera-based Deep Reinforcement Learning approaches is twofold: they rarely integrate high-level scene context into the feature representation, and they rely on rigid, fixed reward functions. To address these…

机器人学 · 计算机科学 2026-02-06 Vinal Asodia , Iman Sharifi , Saber Fallah

Reinforcement learning provides an automated framework for learning behaviors from high-level reward specifications, but in practice the choice of reward function can be crucial for good results -- while in principle the reward only needs…

机器学习 · 计算机科学 2022-10-19 Abhishek Gupta , Aldo Pacchiano , Yuexiang Zhai , Sham M. Kakade , Sergey Levine

Low-dose CT (LDCT) imaging is widely used to reduce radiation exposure to mitigate high exposure side effects, but often suffers from noise and artifacts that affect diagnostic accuracy. To tackle this issue, deep learning models have been…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Taifour Yousra , Beghdadi Azeddine , Marie Luong , Zuheng Ming

A novel image matching method is proposed that utilizes learned features extracted by an off-the-shelf deep neural network to obtain a promising performance. The proposed method uses pre-trained VGG architecture as a feature extractor and…

计算机视觉与模式识别 · 计算机科学 2021-06-16 Ufuk Efe , Kutalmis Gokalp Ince , A. Aydin Alatan

An overview of some methods of statistical physics applied to the analysis of algorithms for optimization problems (satisfiability of Boolean constraints, vertex cover of graphs, decoding, ...) with distributions of random inputs is…

计算复杂性 · 计算机科学 2007-05-23 Simona Cocco , Remi Monasson , Andrea Montanari , Guilhem Semerjian

Recent medical imaging studies have given rise to distinct but inter-related datasets corresponding to multiple experimental tasks or longitudinal visits. Standard scalar-on-image regression models that fit each dataset separately are not…

统计方法学 · 统计学 2022-01-21 Xin Ma , Suprateek Kundu

A multi-imaging strategy is proposed and experimentally tested to improve the accuracy of photon counting with an electron multiplying charge-coupled device (EMCCD), by taking into account the random nature of its on-chip gain and the…

天体物理学 · 物理学 2009-11-13 Eric Lantz , Jean Luc Blanchet , Luca Furfaro , Fabrice Devaux

While recent progress in deep reinforcement learning has enabled robots to learn complex behaviors, tasks with long horizons and sparse rewards remain an ongoing challenge. In this work, we propose an effective reward shaping method through…

机器学习 · 计算机科学 2020-08-04 Xingyu Lu , Stas Tiomkin , Pieter Abbeel

The phase function is a key element of a light propagation model for Monte Carlo (MC) simulation, which is usually fitted with an analytic function with associated parameters. In recent years, machine learning methods were reported to…

机器学习 · 计算机科学 2022-04-06 Yuxuan Liang , Chuang Niu , Chen Wei , Shenghan Ren , Wenxiang Cong , Ge Wang

Bayesian optimization is a popular framework for the optimization of black box functions. Multifidelity methods allows to accelerate Bayesian optimization by exploiting low-fidelity representations of expensive objective functions. Popular…

机器学习 · 计算机科学 2024-07-08 Francesco Di Fiore , Laura Mainini

Reconstructing high-quality images from undersampled dynamic MRI data is a challenging task and important for the success of this imaging modality. To remedy the naturally occurring artifacts due to measurement undersampling, one can…

最优化与控制 · 数学 2025-04-29 Matthias J. Ehrhardt , Marco Mauritz

Many cosmological models have only a finite number of parameters of interest, but a very expensive data-generating process and an intractable likelihood function. We address the problem of performing likelihood-free Bayesian inference from…

宇宙学与河外天体物理 · 物理学 2018-09-14 Florent Leclercq

We extend our previously proposed image reconstruction method, which allows confocal microscopes to capture periodically moving objects at frequencies beyond their frame rates, to three-dimensional and two-dimensional wide-field imaging.…

光学 · 物理学 2026-03-03 Kanta Adachi , Soyoka Hemmi , Nobutomo Nakamura

Recent advances in (scanning) transmission electron microscopy have enabled routine generation of large volumes of high-veracity structural data on 2D and 3D materials, naturally offering the challenge of using these as starting inputs for…

数据分析、统计与概率 · 物理学 2022-11-08 Ayana Ghosh , Maxim Ziatdinov , Ondrej Dyck , Bobby Sumpter , Sergei V. Kalinin

Reinforcement learning offers a promising approach for scan-order optimisation in laser additive manufacturing, where sequential scan decisions critically influence thermal accumulation, residual stress, distortion, and final part quality.…

机器学习 · 计算机科学 2026-05-26 Xian Wu , Haoran Li , Dongbin Zhao , Ruiyao Zhang , Yuanqi Chu , Bin Wang

Supervised deep learning approaches can artificially increase the resolution of microscopy images by learning a mapping between two image resolutions or modalities. However, such methods often require a large set of hard-to-get…

图像与视频处理 · 电气工程与系统科学 2024-11-20 Marzieh Gheisari , Auguste Genovesio

In this work we explore the possibility of applying machine learning methods designed for one-dimensional problems to the task of galaxy image classification. The algorithms used for image classification typically rely on multiple costly…

星系天体物理 · 物理学 2022-02-23 F. Tarsitano , C. Bruderer , K. Schawinski , W. G. Hartley

Flow-Imaging Microscopy (FIM) is commonly used in both academia and industry to characterize subvisible particles (those $\le 25 \mu m$ in size) in protein therapeutics. Pharmaceutical companies are required to record vast volumes of FIM…

定量方法 · 定量生物学 2017-09-04 Christopher P. Calderon , Austin L. Daniels , Theodore W. Randolph

To fully leverage the capabilities of diffusion models, we are often interested in optimizing downstream reward functions during inference. While numerous algorithms for reward-guided generation have been recently proposed due to their…

机器学习 · 计算机科学 2025-04-18 Masatoshi Uehara , Xingyu Su , Yulai Zhao , Xiner Li , Aviv Regev , Shuiwang Ji , Sergey Levine , Tommaso Biancalani