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Efficient thermal management in high-power electronic devices requires cooling channel designs that provide high heat removal while satisfying strict spatial and manufacturing constraints. This study presents a two-stage hierarchical…

Optimization and Control · Mathematics 2026-03-31 Shunsuke Hirotani , Kunitaka Shintani , Yoshikatsu Furusawa , Kentaro Yaji

Hollow-core fibers offer superior loss and latency characteristics compared to solid-core alternatives, yet the geometric complexity of nested antiresonance nodeless fibers (NANFs) makes traditional optimization computationally prohibitive.…

Machine Learning · Computer Science 2026-03-17 Rania A. Eltaieb , Sophie LaRochelle , Leslie A. Rusch

In this paper we propose a novel approach to model compression termed Architecture Compression. Instead of operating on the weight or filter space of the network like classical model compression methods, our approach operates on the…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Anubhav Ashok

A novel approach for speech segmentation is proposed, based on Multilevel Hybrid (mean/min) Filters (MHF) with the following features: An accurate transition location. Good performance in noisy environments (gaussian and impulsive noise).…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-04 Marcos Faundez-Zanuy , Francesc Vallverdu-Bayes

The Terahertz band holds a promise to enable both super-accurate sensing and ultra-fast communication. However, challenges arise that severe Doppler effects call for a waveform with high Doppler robustness while severe propagation path loss…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Meilin Li , Chong Han , Shi Jin

In this paper, we focus on large intelligent reflecting surfaces (IRSs) and propose a new codebook construction method to obtain a set of pre-designed phase-shift configurations for the IRS unit cells. Since the complexity of online…

Information Theory · Computer Science 2022-08-09 Walid R. Ghanem , Vahid Jamali , Malte Schellmann , Hanwen Cao , Joseph Eichinger , Robert Schober

Superconducting electronics are among the most promising alternatives to conventional CMOS technology thanks to the ultra-fast speed and ultra-high energy efficiency of the superconducting devices. Having a cryogenic control processor is…

Emerging Technologies · Computer Science 2023-09-29 Shamiul Alam , Dana S. Rampini , Bakhrom G. Oripov , Adam N. McCaughan , Ahmedullah Aziz

Nanophononic materials are promising to control the transport of sound in the GHz range and heat in the THz range. Here we are interested in the influence of a dendritic shape of inclusion on acoustic attenuation. We investigate a Finite…

Mesoscale and Nanoscale Physics · Physics 2022-01-19 Haoming Luo , Yue Ren , Anthony Gravouil , Valentina M. Giordano , Qing Zhou , Haifeng Wang , Anne Tanguy

Undersampled CT volumes minimize acquisition time and radiation exposure but introduce artifacts degrading image quality and diagnostic utility. Reducing these artifacts is critical for high-quality imaging. We propose a computationally…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Johannes Thalhammer , Tina Dorosti , Sebastian Peterhansl , Daniela Pfeiffer , Franz Pfeiffer , Florian Schaff

Ejectors are used in various engineering systems, including steam and vapor compression cycles. Optimizing the performance of ejectors requires understanding and analysis of multiphase and turbulent flow structures associated with their…

Fluid Dynamics · Physics 2025-08-12 Sreetam Bhaduri , Ivan C. Christov , Eckhard A. Groll , Davide Ziviani

We optimize a selection of eigenvalues of the Laplace operator with Dirichlet or Neumann boundary conditions by adjusting the shape of the domain on which the eigenvalue problem is considered. Here, a phase-field function is used to…

Optimization and Control · Mathematics 2023-01-23 Harald Garcke , Paul Hüttl , Christian Kahle , Patrik Knopf , Tim Laux

A model for the development of turbulent shear flows, created by non-uniform parallel flows in a confining channel, is used to identify the diffuser shape that maximises pressure recovery when the inflow is non-uniform. Wide diffuser angles…

Fluid Dynamics · Physics 2018-04-09 GP Benham , IJ Hewitt , CP Please , P Bird

Ventilation barriers allowing simultaneous sound blocking and free airflow passage are of great challenge but necessary for particular scenarios calling for sound-proofing ventilation. Previous works based on local resonance or Fano-like…

Applied Physics · Physics 2021-02-24 Ruizhi Dong , Dongxing Mao , Xu Wang , Yong Li

We propose a data-driven approach for deep convolutional neural network compression that achieves high accuracy with high throughput and low memory requirements. Current network compression methods either find a low-rank factorization of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Breton Minnehan , Andreas Savakis

This paper studies an intelligent reflecting surface (IRS)-aided multiple-input-multiple-output (MIMO) full-duplex (FD) wireless-powered communication network (WPCN), where a hybrid access point (HAP) operating in FD broadcasts energy…

Information Theory · Computer Science 2022-09-14 Meng Hua , Qingqing Wu

Optimization of functionally graded metamaterial arrays with a high dimensional and continuous geometric design space is cumbersome and could be accelerated via machine learning tools. Mechanical metamaterials can manipulate acoustic or…

To meet the requirements for high data rates and ubiquitous connectivity in 6G networks, higher frequencies and larger array apertures are employed to enhance spatial resolution and spectral efficiency. This evolution leads to an expansion…

Signal Processing · Electrical Eng. & Systems 2026-04-03 Shupei Zhang , Boya Di , Lingyang Song

The exponential growth in model sizes has significantly increased the communication burden in Federated Learning (FL). Existing methods to alleviate this burden by transmitting compressed gradients often face high compression errors, which…

Machine Learning · Computer Science 2025-02-06 Yuhao Zhou , Yuxin Tian , Mingjia Shi , Yuanxi Li , Yanan Sun , Qing Ye , Jiancheng Lv

This article explores a variant of Kac's famous problem, "Can one hear the shape of a drum?", by addressing a geometric inverse problem in acoustics. Our objective is to reconstruct the shape of a cuboid room using acoustic signals measured…

Optimization and Control · Mathematics 2025-09-11 Antoine Deleforge , Cédric Foy , Yannick Privat , Tom Sprunck

Model compression aims to reduce the redundancy of deep networks to obtain compact models. Recently, channel pruning has become one of the predominant compression methods to deploy deep models on resource-constrained devices. Most channel…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Yixin Liu , Yong Guo , Zichang Liu , Haohua Liu , Jingjie Zhang , Zejun Chen , Jing Liu , Jian Chen
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