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We consider unconstrained optimization problems where only "stochastic" estimates of the objective function are observable as replicates from a Monte Carlo oracle. The Monte Carlo oracle is assumed to provide no direct observations of the…

最优化与控制 · 数学 2016-10-21 Sara Shashaani , Fatemeh Hashemi , Raghu Pasupathy

Supervised dictionary learning (SDL) is a classical machine learning method that simultaneously seeks feature extraction and classification tasks, which are not necessarily a priori aligned objectives. The goal of SDL is to learn a…

机器学习 · 统计学 2022-06-15 Joowon Lee , Hanbaek Lyu , Weixin Yao

Solving partial differential equations in high dimensions by deep neural network has brought significant attentions in recent years. In many scenarios, the loss function is defined as an integral over a high-dimensional domain. Monte-Carlo…

数值分析 · 数学 2019-11-06 Jingrun Chen , Rui Du , Panchi Li , Liyao Lyu

Learning to sample from complex unnormalized distributions over discrete domains emerged as a promising research direction with applications in statistical physics, variational inference, and combinatorial optimization. Recent work has…

Deep learning (DL) is a numerical method that approximates functions. Recently, its use has become attractive for the simulation and inversion of multiple problems in computational mechanics, including the inversion of borehole logging…

地球物理 · 物理学 2020-05-29 M. Shahriari , D. Pardo , J. A. Rivera , C. Torres-Verdín , A. Picon , J. Del Ser , S. Ossandón , V. M. Calo

Nonparametric mean function regression with repeated measurements serves as a cornerstone for many statistical branches, such as longitudinal/panel/functional data analysis. In this work, we investigate this problem using fully connected…

统计理论 · 数学 2025-02-27 Shunxing Yan , Fang Yao , Hang Zhou

Scalable algorithms of posterior approximation allow Bayesian nonparametrics such as Dirichlet process mixture to scale up to larger dataset at fractional cost. Recent algorithms, notably the stochastic variational inference performs local…

机器学习 · 计算机科学 2025-02-25 Kart-Leong Lim , Xudong Jiang

In the field of computational physics and material science, the efficient sampling of rare events occurring at atomic scale is crucial. It aids in understanding mechanisms behind a wide range of important phenomena, including protein…

机器学习 · 计算机科学 2024-01-17 Xinru Hua , Rasool Ahmad , Jose Blanchet , Wei Cai

Recently, several deep learning (DL) methods for approximating high-dimensional partial differential equations (PDEs) have been proposed. The interest that these methods have generated in the literature is in large part due to simulations…

数值分析 · 数学 2026-04-30 Julia Ackermann , Arnulf Jentzen , Thomas Kruse , Benno Kuckuck , Joshua Lee Padgett

A neural network architecture is presented that exploits the multilevel properties of high-dimensional parameter-dependent partial differential equations, enabling an efficient approximation of parameter-to-solution maps, rivaling…

机器学习 · 计算机科学 2024-08-21 Janina Enrica Schütte , Martin Eigel

Prompt learning has surfaced as an effective approach to enhance the performance of Vision-Language Models (VLMs) like CLIP when applied to downstream tasks. However, current learnable prompt tokens are primarily used for the single phase…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Ge Wu , Xin Zhang , Zheng Li , Zhaowei Chen , Jiajun Liang , Jian Yang , Xiang Li

Deep learning is reshaping mobile applications, with a growing trend of deploying deep neural networks (DNNs) directly to mobile and embedded devices to address real-time performance and privacy. To accommodate local resource limitations,…

人工智能 · 计算机科学 2024-12-03 Yuzhan Wang , Sicong Liu , Bin Guo , Boqi Zhang , Ke Ma , Yasan Ding , Hao Luo , Yao Li , Zhiwen Yu

Unsupervised deep metric learning (UDML) focuses on learning a semantic representation space using only unlabeled data. This challenging problem requires accurately estimating the similarity between data points, which is used to supervise a…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Shubhang Bhatnagar , Narendra Ahuja

Multi-distribution learning (MDL), which seeks to learn a shared model that minimizes the worst-case risk across $k$ distinct data distributions, has emerged as a unified framework in response to the evolving demand for robustness,…

机器学习 · 计算机科学 2025-08-12 Zihan Zhang , Wenhao Zhan , Yuxin Chen , Simon S. Du , Jason D. Lee

Adaptive causal representation learning from observational data is presented, integrated with an efficient sample splitting technique within the semiparametric estimating equation framework. The support points sample splitting (SPSS), a…

机器学习 · 统计学 2024-11-25 Lynda Aouar , Han Yu

Network slicing promises to provision diversified services with distinct requirements in one infrastructure. Deep reinforcement learning (e.g., deep $\mathcal{Q}$-learning, DQL) is assumed to be an appropriate algorithm to solve the…

机器学习 · 计算机科学 2019-06-12 Chen Qi , Yuxiu Hua , Rongpeng Li , Zhifeng Zhao , Honggang Zhang

Unsupervised domain adaptation techniques, extensively studied in hyperspectral image (HSI) classification, aim to use labeled source domain data and unlabeled target domain data to learn domain invariant features for cross-scene…

计算机视觉与模式识别 · 计算机科学 2024-08-29 Jie Feng , Tianshu Zhang , Junpeng Zhang , Ronghua Shang , Weisheng Dong , Guangming Shi , Licheng Jiao

In solving simulation-based stochastic root-finding or optimization problems that involve rare events, such as in extreme quantile estimation, running crude Monte Carlo can be prohibitively inefficient. To address this issue, importance…

统计方法学 · 统计学 2021-02-23 Shengyi He , Guangxin Jiang , Henry Lam , Michael C. Fu

The multi-band HSC-CLAUDS survey comprises several sky regions with varying observing conditions, only one of which, the COSMOS Ultra Deep Field (UDF), offers extensive redshift coverage. We aim to exploit a complete sample of labeled…

宇宙学与河外天体物理 · 物理学 2026-03-11 M. Treyer , R. Ait-Ouahmed , S. Arnouts , J. Pasquet , E. Bertin , G. Desprez , V. Picouet , M. Sawicki

In this work, we study the approximation of expected values of functional quantities on the solution of a stochastic differential equation (SDE), where we replace the Monte Carlo estimation with the evaluation of a deep neural network. Once…

数值分析 · 数学 2021-02-18 Thomas Gerstner , Bastian Harrach , Daniel Roth , Martin Simon