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Learning dynamics governed by differential equations is crucial for predicting and controlling the systems in science and engineering. Neural Ordinary Differential Equation (NODE), a deep learning model integrated with differential…

Machine Learning · Computer Science 2021-11-09 Shiqi Gong , Qi Meng , Yue Wang , Lijun Wu , Wei Chen , Zhi-Ming Ma , Tie-Yan Liu

Energy is a fundamental component of modern life, driving nearly all aspects of daily activities. As such, the inability to access energy when needed is a significant issue that requires innovative solutions. In this paper, we propose…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-03-25 Abdulrezzak Zekiye , Ouns Bouachir , Öznur Özkasap , Moayad Aloqaily

Directed energy deposition (DED) is a promising metal additive manufacturing technology capable of 3D printing metal parts with complex geometries at lower cost compared to traditional manufacturing. The technology is most effective when…

Numerical Analysis · Mathematics 2023-12-01 Aaron L. Brown , Eric B. Chin , Youngsoo Choi , Saad A. Khairallah , Joseph T. McKeown

In this paper, we propose a novel Adaptive Transmission Strategy to improve energy efficiency~(EE) in a wireless point-to-point transmission system with Quality of Service~(QoS) requirement, i.e., delay-outage probability considered. The…

Information Theory · Computer Science 2018-07-24 Linlin Zou , Yanzhao Hou , Xiaofeng Tao , Qimei Cui , Xueqing Huang

We revisit the theoretical priors used for inferring Dark Energy (DE) parameters. Any DE model must have some form of a tracker mechanism such that it behaved as matter or radiation in the past. Otherwise, the model is fine-tuned. We…

Cosmology and Nongalactic Astrophysics · Physics 2023-10-24 Ido Ben-Dayan , Utkarsh Kumar

A large class of inverse problems for PDEs are only well-defined as mappings from operators to functions. Existing operator learning frameworks map functions to functions and need to be modified to learn inverse maps from data. We propose a…

Machine Learning · Computer Science 2023-06-06 Roberto Molinaro , Yunan Yang , Björn Engquist , Siddhartha Mishra

The optimal decoder achieving the outage capacity under imperfect channel estimation is investigated. First, by searching into the family of nearest neighbor decoders, which can be easily implemented on most practical coded modulation…

Information Theory · Computer Science 2016-11-17 Pablo Piantanida , Sajad Sadough , Pierre Duhamel

Phasor measurement units ({PMUs}) have become instrumental in modern power systems for enabling real-time, wide-area monitoring and control. Accordingly, many studies have investigated efficient and robust dynamic state estimation (DSE)…

Systems and Control · Electrical Eng. & Systems 2023-01-02 Sebastian Nugroho , Ahmad Taha , Nikolaos Gatsis , Junbo Zhao

We address the problem of predicting the next state of a dynamical system governed by unknown temporal partial differential equations (PDEs) using only a short trajectory. While standard transformers provide a natural black-box solution to…

Machine Learning · Computer Science 2025-04-29 Rudy Morel , Jiequn Han , Edouard Oyallon

The latest findings from the DESI (Dark Energy Spectroscopic Instrument) data release 1 (DR1) [1], combined with data from the cosmic microwave background and supernovae, suggest a preference for dynamical dark energy over the cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-16 Nandan Roy

Decomposition has become an increasingly popular technique for evolutionary multi-objective optimization (EMO). A decomposition-based EMO algorithm is usually designed to approximate a whole Pareto-optimal front (PF). However, in practice,…

Neural and Evolutionary Computing · Computer Science 2018-10-02 Ke Li , Renzhi Chen , Dragan Savic , Xin Yao

The EDE model is one of the promising solutions to the long-standing Hubble tension. This paper investigates the status of several EDE models in light of recent BAO observations from the Dark Energy Spectroscopic Instrument (DESI) and their…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-01 Jun-Qian Jiang

By learning the mappings between infinite function spaces using carefully designed neural networks, the operator learning methodology has exhibited significantly more efficiency than traditional methods in solving complex problems such as…

Numerical Analysis · Mathematics 2023-03-06 Ziyuan Liu , Haifeng Wang , Hong Zhang , Kaijuna Bao , Xu Qian , Songhe Song

The predictive accuracy of operator learning frameworks depends on the quality and quantity of available training data (input-output function pairs), often requiring substantial amounts of high-fidelity data, which can be challenging to…

Machine Learning · Computer Science 2025-10-29 Sumanta Roy , Bahador Bahmani , Ioannis G. Kevrekidis , Michael D. Shields

This paper, for the first time, presents a low-complexity peak-power-assisted data-aided channel estimation (DACE) scheme for both single-input single-output (SISO) and multiple-input multiple-output orthogonal frequency division…

Signal Processing · Electrical Eng. & Systems 2024-10-10 Inaamullah Khan , Mohammad Mahmudul Hasan , Michael Cheffena

Delay-Differential Equations (DDEs) are the most common representation for systems with delay. However, the DDE representation is limited. In network models with delay, the delayed channels are low-dimensional and accounting for this…

Optimization and Control · Mathematics 2020-12-21 Matthew M. Peet

In this study, we develop an extended implicit moment method, namely, a coupled high-order low-order (HOLO) method and apply it to the electromagnetic Vlasov-Darwin model. The high-order (HO) system evolves particles in a manner that…

Plasma Physics · Physics 2025-08-13 Derek A. Kuldinow , William T. Taitano , Kentaro Hara

Finite element analysis (FEA) has been widely used to generate simulations of complex and nonlinear systems. Despite its strength and accuracy, the limitations of FEA can be summarized into two aspects: a) running high-fidelity FEA often…

Machine Learning · Computer Science 2020-12-15 Yinan Wang , Kaiwen Wang , Wenjun Cai , Xiaowei Yue

This paper presents a novel autoencoder with ordered variance (AEO) in which the loss function is modified with a variance regularization term to enforce order in the latent space. Further, the autoencoder is modified using ResNets, which…

Systems and Control · Electrical Eng. & Systems 2024-02-23 Midhun T. Augustine , Parag Patil , Mani Bhushan , Sharad Bhartiya

The required signal processing rate in future wireless communication systems exceeds the performance of the latest electronics-based processors. Introduction of analog optical computation is one promising direction for energy-efficient…

Signal Processing · Electrical Eng. & Systems 2024-03-19 Ayano Nakai-Kasai , Tadashi Wadayama
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