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Deep learning surrogate models are being increasingly used in accelerating scientific simulations as a replacement for costly conventional numerical techniques. However, their use remains a significant challenge when dealing with real-world…

Machine Learning · Computer Science 2023-03-27 Saurabh Deshpande , Raúl I. Sosa , Stéphane P. A. Bordas , Jakub Lengiewicz

DeepFake face swapping enables highly realistic identity forgeries, posing serious privacy and security risks. A common defence embeds invisible perturbations into images, but these are fragile and often destroyed by basic transformations…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Hengyang Yao , Lin Li , Ke Sun , Jianing Qiu , Huiping Chen

Deep learning is able to functionally simulate the human brain and thus, it has attracted considerable interest. Optics-assisted deep learning is a promising approach to improve the forward-propagation speed and reduce the power…

Signal Processing · Electrical Eng. & Systems 2020-09-08 Zhixing Lin , Shuqian Sun , Jose Azana , Wei Li , Ninghua Zhu , Ming Li

Unlike vision and language data which usually has a unique format, molecules can naturally be characterized using different chemical formulations. One can view a molecule as a 2D graph or define it as a collection of atoms located in a 3D…

Machine Learning · Computer Science 2023-03-29 Shengjie Luo , Tianlang Chen , Yixian Xu , Shuxin Zheng , Tie-Yan Liu , Liwei Wang , Di He

Estimating path loss for a transmitter-receiver location is key to many use-cases including network planning and handover. Machine learning has become a popular tool to predict wireless channel properties based on map data. In this work, we…

A continual learning agent should be able to build on top of existing knowledge to learn on new data quickly while minimizing forgetting. Current intelligent systems based on neural network function approximators arguably do the…

Machine Learning · Computer Science 2019-11-01 Khurram Javed , Martha White

Surrogate models for partial-differential equations are widely used in the design of meta-materials to rapidly evaluate the behavior of composable components. However, the training cost of accurate surrogates by machine learning can rapidly…

Machine Learning · Computer Science 2020-11-04 Raphaël Pestourie , Youssef Mroueh , Thanh V. Nguyen , Payel Das , Steven G. Johnson

Optical multi-layer thin films are widely used in optical and energy applications requiring photonic designs. Engineers often design such structures based on their physical intuition. However, solely relying on human experts can be…

Signal Processing · Electrical Eng. & Systems 2020-06-23 Haozhu Wang , Zeyu Zheng , Chengang Ji , L. Jay Guo

Nonlinear imaging systems can surpass the limits of linear optics, but to date they have all relied on physical media (e.g. crystals) to work. These materials are all constrained by their physical properties, such as frequency selectivity,…

Optics · Physics 2015-07-31 Jen-Tang Lu , Alexandre S. Goy , Jason W. Fleischer

Hyperspectral object tracking using snapshot mosaic cameras is emerging as it provides enhanced spectral information alongside spatial data, contributing to a more comprehensive understanding of material properties. Using transformers,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Shaheer Mohamed , Tharindu Fernando , Sridha Sridharan , Peyman Moghadam , Clinton Fookes

A Machine Learning (ML) network based on transfer learning and transformer networks is applied to wave propagation models for complex indoor settings. This network is designed to predict signal propagation in environments with a variety of…

Signal Processing · Electrical Eng. & Systems 2025-01-28 Ziheng Fu , Swagato Mukherjee , Michael T. Lanagan , Prasenjit Mitra , Tarun Chawla , Ram M. Narayanan

In many mechanistic medical, biological, physical and engineered spatiotemporal dynamic models the numerical solution of partial differential equations (PDEs) can make simulations impractically slow. Biological models require the…

Soft Condensed Matter · Physics 2021-02-11 J. Quetzalcóatl Toledo-Marín , Geoffrey Fox , James P. Sluka , James A. Glazier

Many real-world systems are modelled using complex ordinary differential equations (ODEs). However, the dimensionality of these systems can make them challenging to analyze. Dimensionality reduction techniques like Proper Orthogonal…

Computational Engineering, Finance, and Science · Computer Science 2025-02-26 Abhishek Ajayakumar , Soumyendu Raha

Structured light with customized complex topological pattern inspires diverse classical and quantum investigations underpinned by accurate detection techniques. However, the current detection schemes are limited to vortex beam with simple…

Automatically segmenting objects from optical remote sensing images (ORSIs) is an important task. Most existing models are primarily based on either convolutional or Transformer features, each offering distinct advantages. Exploiting both…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Yanguang Sun , Jiexi Yan , Jianjun Qian , Chunyan Xu , Jian Yang , Lei Luo

With sequentially stacked self-attention, (optional) encoder-decoder attention, and feed-forward layers, Transformer achieves big success in natural language processing (NLP), and many variants have been proposed. Currently, almost all…

Computation and Language · Computer Science 2021-03-08 Jinhua Zhu , Lijun Wu , Yingce Xia , Shufang Xie , Tao Qin , Wengang Zhou , Houqiang Li , Tie-Yan Liu

Driven by the increasing volume of recorded data, the demand for simulation from experiments based at the Large Hadron Collider will rise sharply in the coming years. Addressing this demand solely with existing computationally intensive…

Complex systems are often decomposed into modular subsystems for engineering tractability. Although various equation based white-box modeling techniques make use of such structure, learning based methods have yet to incorporate these ideas…

Machine Learning · Computer Science 2022-10-31 Jayesh K. Gupta , Sai Vemprala , Ashish Kapoor

Transformers have revolutionized deep learning based computer vision with improved performance as well as robustness to natural corruptions and adversarial attacks. Transformers are used predominantly for 2D vision tasks, including image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Hemang Chawla , Arnav Varma , Elahe Arani , Bahram Zonooz

For many novel applications, such as patient-specific computer-aided surgery, conventional solution techniques of the underlying nonlinear problems are usually computationally too expensive and are lacking information about how certain can…

Machine Learning · Computer Science 2022-07-18 Saurabh Deshpande , Jakub Lengiewicz , Stéphane P. A. Bordas