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Beamforming in millimeter-wave (mmWave) high-mobility environments typically incurs substantial training overhead. While prior studies suggest that sub-6 GHz channels can be exploited to predict optimal mmWave beams, existing methods depend…

Signal Processing · Electrical Eng. & Systems 2026-05-22 Sina Tavakolian , Nhan Thanh Nguyen , Ahmed Alkhateeb , Markku Juntti

Extracting temporal and representation features efficiently plays a pivotal role in understanding visual sequence information. To deal with this, we propose a new recurrent neural framework that can be stacked deep effectively. There are…

Computer Vision and Pattern Recognition · Computer Science 2019-10-28 Bo Pang , Kaiwen Zha , Hanwen Cao , Chen Shi , Cewu Lu

Large language models (LLMs) have demonstrated exceptional performance across a variety of tasks. However, their substantial scale leads to significant computational resource consumption during inference, resulting in high costs.…

Machine Learning · Computer Science 2025-06-13 Zhaode Wang , Jingbang Yang , Xinyu Qian , Shiwen Xing , Xiaotang Jiang , Chengfei Lv , Shengyu Zhang

On-device directional hearing requires audio source separation from a given direction while achieving stringent human-imperceptible latency requirements. While neural nets can achieve significantly better performance than traditional…

Sound · Computer Science 2021-12-14 Anran Wang , Maruchi Kim , Hao Zhang , Shyamnath Gollakota

This paper describes a practical dual-process speech enhancement system that adapts environment-sensitive frame-online beamforming (front-end) with help from environment-free block-online source separation (back-end). To use minimum…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-25 Aditya Arie Nugraha , Kouhei Sekiguchi , Mathieu Fontaine , Yoshiaki Bando , Kazuyoshi Yoshii

Hybrid beamforming (HBF) is a key enabler for wideband terahertz (THz) massive multiple-input multiple-output (mMIMO) communications systems. A core challenge with designing HBF systems stems from the fact their application often involves a…

Information Theory · Computer Science 2023-02-24 Nhan Thanh Nguyen , Mengyuan Ma , Nir Shlezinger , Yonina C. Eldar , A. L. Swindlehurst , Markku Juntti

The prediction of physicochemical properties from molecular structures is a crucial task for artificial intelligence aided molecular design. A growing number of Graph Neural Networks (GNNs) have been proposed to address this challenge.…

Machine Learning · Computer Science 2020-11-17 Shuo Zhang , Yang Liu , Lei Xie

Graph neural networks (GNNs) have recently achieved state-of-the-art performance in many graph-based applications. Despite the high expressive power, they typically need to perform an expensive recursive neighborhood expansion in multiple…

Machine Learning · Computer Science 2022-06-10 Wentao Zhang , Ziqi Yin , Zeang Sheng , Wen Ouyang , Xiaosen Li , Yangyu Tao , Zhi Yang , Bin Cui

This paper proposes a learning aided gradient descent (LAGD) algorithm to solve the weighted sum rate (WSR) maximization problem for multiple-input single-output (MISO) beamforming. The proposed LAGD algorithm directly optimizes the…

Signal Processing · Electrical Eng. & Systems 2022-07-26 Zhixiong Yang , Jing-Yuan Xia , Junshan Luo , Shuanghui Zhang , Deniz Gündüz

Graph Neural Networks (GNNs) have demonstrated impressive performance in learning representations from graph-structured data. However, their message-passing mechanism inherently relies on the assumption of label consistency among connected…

Machine Learning · Computer Science 2026-04-28 Taihua Xu , Genhao Tian , Jicong Fan , Xibei Yang , Qinghua Zhang , Yun Cui

A graph neural network (GCN) is employed in the deep energy method (DEM) model to solve the momentum balance equation in 3D for the deformation of linear elastic and hyperelastic materials due to its ability to handle irregular domains over…

Computational Engineering, Finance, and Science · Computer Science 2022-10-21 Junyan He , Diab Abueidda , Seid Koric , Iwona Jasiuk

Deep learning-based approaches, particularly graph neural networks (GNNs), have gained prominence in simulating flexible deformations and contacts of solids, due to their ability to handle unstructured physical fields and nonlinear…

Machine Learning · Computer Science 2026-04-07 Zhe Feng , Shilong Tao , Haonan Sun , Shaohan Chen , Zhanxing Zhu , Yunhuai Liu

Binary Neural Networks (BNNs) significantly reduce computational complexity and memory usage in machine and deep learning by representing weights and activations with just one bit. However, most existing training algorithms for BNNs rely on…

Machine Learning · Computer Science 2025-12-08 Luca Colombo , Fabrizio Pittorino , Manuel Roveri

Training deep neural networks on large datasets containing high-dimensional data requires a large amount of computation. A solution to this problem is data-parallel distributed training, where a model is replicated into several…

Machine Learning · Computer Science 2021-03-18 Lusine Abrahamyan , Yiming Chen , Giannis Bekoulis , Nikos Deligiannis

This paper investigates the feasibility of human mobility in extreme urban morphologies characterized by high-density vertical structures and linear city layouts. To assess whether agents can navigate efficiently within such unprecedented…

Artificial Intelligence · Computer Science 2026-05-05 Abderaouf Bahi , Amel Ourici

Mesh-based graph neural networks (GNNs) have become effective surrogates for PDE simulations, yet their deep message passing incurs high cost and over-smoothing on large, long-range meshes; hierarchical GNNs shorten propagation paths but…

Machine Learning · Computer Science 2025-09-16 Bo Lei , Victor M. Castillo , Yeping Hu

Spectral Graph Neural Networks (GNNs) suffer from two critical limitations: poor performance on "heterophilic" graphs and performance collapse at high polynomial degrees (K), known as over-smoothing. Both issues stem from the static,…

Machine Learning · Computer Science 2025-11-20 Huseyin Goksu

Cell-free massive MIMO (CF-mMIMO) has emerged as a promising paradigm for delivering uniformly high-quality coverage in future wireless networks. To address the inherent challenges of precoding in such distributed systems, recent studies…

Signal Processing · Electrical Eng. & Systems 2025-08-05 Tianzheng Miao , Thomas Feys , Gilles Callebaut , Jarne Van Mulders , Emanuele Peschiera , Md Arifur Rahman , François Rottenberg

We develop an efficient and near-optimal solution for beamforming in multi-user multiple-input-multiple-output single-hop wireless ad-hoc interference networks. Inspired by the weighted minimum mean squared error (WMMSE) method, a classical…

Signal Processing · Electrical Eng. & Systems 2023-04-04 Arindam Chowdhury , Gunjan Verma , Ananthram Swami , Santiago Segarra

Graph Neural Networks (GNNs) have demonstrated impressive performance across diverse graph-based tasks by leveraging message passing to capture complex node relationships. However, on large-scale real-world graphs, GNNs face two major…

Machine Learning · Computer Science 2026-03-10 Xiang Li , Jianpeng Qi , Haobing Liu , Yuan Cao , Guoqing Chao , Zhongying Zhao , Junyu Dong , Xinwang Liu , Yanwei Yu
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