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We introduce a reinforcement learning (RL) based adaptive optimization algorithm for aerodynamic shape optimization focused on dimensionality reduction. The form in which RL is applied here is that of a surrogate-based, actor-critic policy…

A statistical emulator can be used as a surrogate of complex physics-based calculations to drastically reduce the computational cost. Its successful implementation hinges on an accurate representation of the nonlinear response surface with…

Chemical Physics · Physics 2024-01-31 Xinyi Fang , Mengyang Gu , Jianzhong Wu

Deep neural networks (DNNs) are found to be vulnerable to adversarial attacks, and various methods have been proposed for the defense. Among these methods, adversarial training has been drawing increasing attention because of its simplicity…

Machine Learning · Computer Science 2023-01-03 Yuwei Ou , Xiangning Xie , Shangce Gao , Yanan Sun , Kay Chen Tan , Jiancheng Lv

Gradient optimization-based adversarial attack methods automate the learning of adversarial triggers to generate jailbreak prompts or leak system prompts. In this work, we take a closer look at the optimization objective of adversarial…

Machine Learning · Computer Science 2025-11-21 Zhe Wang , Yanjun Qi

Artificial neural networks which are inspired from the learning mechanism of brain have achieved great successes in many problems, especially those with deep layers. In this paper, we propose a nucleus neural network (NNN) and corresponding…

Computer Vision and Pattern Recognition · Computer Science 2019-05-15 Jia Liu , Maoguo Gong , Haibo He

In differentiable neural architecture search (NAS) algorithms like DARTS, the training set used to update model weight and the validation set used to update model architectures are sampled from the same data distribution. Thus, the uncommon…

Machine Learning · Computer Science 2021-12-02 Ruisi Zhang , Youwei Liang , Sai Ashish Somayajula , Pengtao Xie

Deep neural networks based on unrolled iterative algorithms have achieved remarkable success in sparse reconstruction applications, such as synthetic aperture radar (SAR) tomographic inversion (TomoSAR). However, the currently available…

Signal Processing · Electrical Eng. & Systems 2026-04-22 Kun Qian , Yuanyuan Wang , Peter Jung , Yilei Shi , Xiao Xiang Zhu

To preserve user privacy while enabling mobile intelligence, techniques have been proposed to train deep neural networks on decentralized data. However, training over decentralized data makes the design of neural architecture quite…

Machine Learning · Computer Science 2022-07-07 Jinliang Yuan , Mengwei Xu , Yuxin Zhao , Kaigui Bian , Gang Huang , Xuanzhe Liu , Shangguang Wang

Conventional active learning (AL) frameworks aim to reduce the cost of data annotation by actively requesting the labeling for the most informative data points. However, introducing AL to data hungry deep learning algorithms has been a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Salman Mohamadi , Gianfranco Doretto , Donald A. Adjeroh

Progress in the application of machine learning techniques to the prediction of solid-state and molecular materials properties has been greatly facilitated by the development state-of-the-art feature representations and novel deep learning…

Materials Science · Physics 2022-03-21 David E. Sommer , Scott T. Dunham

Semantic segmentation of building facade is significant in various applications, such as urban building reconstruction and damage assessment. As there is a lack of 3D point clouds datasets related to the fine-grained building facade, we…

Computer Vision and Pattern Recognition · Computer Science 2021-06-02 Yanfei Su , Weiquan Liu , Zhimin Yuan , Ming Cheng , Zhihong Zhang , Xuelun Shen , Cheng Wang

Machine learning surrogates are increasingly used in engineering to accelerate costly simulations, yet distribution shifts between training and deployment often cause severe performance degradation (e.g., unseen geometries or…

Machine Learning · Computer Science 2026-02-18 Anna Zimmel , Paul Setinek , Gianluca Galletti , Johannes Brandstetter , Werner Zellinger

Deep Learning Recommendation Model(DLRM)s utilize the embedding layer to represent various categorical features. Traditional DLRMs adopt unified embedding size for all features, leading to suboptimal performance and redundant parameters.…

Information Retrieval · Computer Science 2024-11-13 He Wei , Yuekui Yang , Yang Zhang , Haiyang Wu , Meixi Liu , Shaoping Ma

This paper showcases the use of a reinforcement learning-based Neural Architecture Search (NAS) agent to design a small neural network to perform active fire detection on multispectral satellite imagery. Specifically, we aim to design a…

Machine Learning · Computer Science 2024-10-14 Amber Cassimon , Phil Reiter , Siegfried Mercelis , Kevin Mets

Deep learning-assisted antenna design methods such as surrogate models have gained significant popularity in recent years due to their potential to greatly increase design efficiencies by replacing the time-consuming full-wave…

Systems and Control · Electrical Eng. & Systems 2023-06-28 Zhaohui Wei , Zhao Zhou , Peng Wang , Jian Ren , Yingzeng Yin , Gert Frølund Pedersen , Ming Shen

The performance of a reinforcement learning (RL) system depends on the computational architecture used to approximate a value function. Deep learning methods provide both optimization techniques and architectures for approximating nonlinear…

Machine Learning · Computer Science 2021-06-21 John D. Martin , Joseph Modayil

The function approximators employed by traditional image-based Deep Reinforcement Learning (DRL) algorithms usually lack a temporal learning component and instead focus on learning the spatial component. We propose a technique, Temporal…

Machine Learning · Computer Science 2021-10-28 Deepak George Thomas , Tichakorn Wongpiromsarn , Ali Jannesari

Document layout analysis (DLA) is the task of detecting the distinct, semantic content within a document and correctly classifying these items into an appropriate category (e.g., text, title, figure). DLA pipelines enable users to convert…

Machine Learning · Computer Science 2023-08-07 Jilin Wang , Michael Krumdick , Baojia Tong , Hamima Halim , Maxim Sokolov , Vadym Barda , Delphine Vendryes , Chris Tanner

Electronic density of states (DOS) is a key factor in condensed matter physics and material science that determines the properties of metals. First-principles density-functional theory (DFT) calculations have typically been used to obtain…

Materials Science · Physics 2019-04-12 Byung Chul Yeo , Donghun Kim , Chansoo Kim , Sang Soo Han

Many engineering applications rely on the evaluation of expensive, non-linear high-dimensional functions. In this paper, we propose the RONAALP algorithm (Reduced Order Nonlinear Approximation with Active Learning Procedure) to…

Fluid Dynamics · Physics 2023-11-20 Clément Scherding , Georgios Rigas , Denis Sipp , Peter J Schmid , Taraneh Sayadi