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A convolution neural network (CNN) based classification method for broadband DOA estimation is proposed, where the phase component of the short-time Fourier transform coefficients of the received microphone signals are directly fed into the…

声音 · 计算机科学 2019-12-18 Soumitro Chakrabarty , Emanuël. A. P. Habets

Aims Late diagnosis of Oral Squamous Cell Carcinoma (OSCC) contributes significantly to its high global mortality rate, with over 50\% of cases detected at advanced stages and a 5-year survival rate below 50\% according to WHO statistics.…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Ajo Babu George , Sreehari J R Ajo Babu George , Sreehari J R Ajo Babu George , Sreehari J R

Deep learning (DL) based channel estimation (CE) and multiple input and multiple output detection (MIMODet), as two separate research topics, have provided convinced evidence to demonstrate the effectiveness and robustness of artificial…

信号处理 · 电气工程与系统科学 2024-01-30 Xiangzhao Qin , Sha Hu , Jiankun Zhang , Jing Qian , Hao Wang

We consider the problem of estimating the direction-of-arrival (DoA) of a desired source located in a known region of interest in the presence of interfering sources and multipath. We propose an approach that precedes the DoA estimation and…

信号处理 · 电气工程与系统科学 2024-09-13 Amitay Bar , Joseph S. Picard , Israel Cohen , Ronen Talmon

Direction of arrival (DoA) estimation is a fundamental task in array processing. A popular family of DoA estimation algorithms are subspace methods, which operate by dividing the measurements into distinct signal and noise subspaces.…

信号处理 · 电气工程与系统科学 2024-07-12 Dor H. Shmuel , Julian P. Merkofer , Guy Revach , Ruud J. G. van Sloun , Nir Shlezinger

Model Order Reduction (MOR) methods enable the generation of real-time-capable digital twins, which can enable various novel value streams in industry. While traditional projection-based methods are robust and accurate for linear problems,…

数值分析 · 数学 2021-09-09 Qinyu Zhuang , Juan Manuel Lorenzi , Hans-Joachim Bungartz , Dirk Hartmann

Multiple-input multiple-output (MIMO) systems play an essential role in direction-of-arrival (DOA) estimation. A large number of antennas used in a MIMO system imposes a huge complexity burden on the popular DOA estimation algorithms, such…

信号处理 · 电气工程与系统科学 2023-03-16 Md Imrul Hasan , Mohammad Saquib

Mixture-of-Experts (MoE) architectures enable efficient scaling of large language models by activating only a subset of parameters per input. However, existing MoE models suffer from two critical limitations: (1) inefficient token-to-expert…

计算与语言 · 计算机科学 2025-10-10 Jing Li , Zhijie Sun , Dachao Lin , Xuan He , Binfan Zheng , Yi Lin , Rongqian Zhao , Xin Chen

Mixture-of-Experts (MoE) models mostly use a router to assign tokens to specific expert modules, activating only partial parameters and often outperforming dense models. We argue that the separation between the router's decision-making and…

计算与语言 · 计算机科学 2025-06-02 Ang Lv , Ruobing Xie , Yining Qian , Songhao Wu , Xingwu Sun , Zhanhui Kang , Di Wang , Rui Yan

A variety of wireless channel estimation methods, e.g., MUSIC and ESPRIT, rely on prior knowledge of the model order. Therefore, it is important to correctly estimate the number of multipath components (MPCs) which compose such channels.…

信号处理 · 电气工程与系统科学 2021-06-23 Brenda Vilas Boas , Wolfgang Zirwas , Martin Haardt

The progression of lung cancer implies the intrinsic ordinal relationship of lung nodules at different stages-from benign to unsure then to malignant. This problem can be solved by ordinal regression methods, which is between classification…

计算机视觉与模式识别 · 计算机科学 2021-02-02 Yiming Lei , Hongming Shan , Junping Zhang

In this paper, an unsupervised deep learning framework based on dual-path model-driven variational auto-encoders (VAE) is proposed for angle-of-arrivals (AoAs) and channel estimation in massive MIMO systems. Specifically designed for…

信号处理 · 电气工程与系统科学 2023-05-31 Zhiheng Guo , Yuanzhang Xiao , Xiang Chen

Sparsely-gated Mixture of Expert (MoE), an emerging deep model architecture, has demonstrated a great promise to enable high-accuracy and ultra-efficient model inference. Despite the growing popularity of MoE, little work investigated its…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Yihua Zhang , Ruisi Cai , Tianlong Chen , Guanhua Zhang , Huan Zhang , Pin-Yu Chen , Shiyu Chang , Zhangyang Wang , Sijia Liu

Estimating the direction of arrival (DOA) of sources is an important problem in aerospace and vehicular communication, localization and radar. In this paper, we consider a challenging multi-source DOA estimation task, where the receiving…

信号处理 · 电气工程与系统科学 2022-02-17 Tom Tirer , Oded Bialer

In this work, we investigate the value of employing deep learning for the task of wireless signal modulation recognition. Recently in [1], a framework has been introduced by generating a dataset using GNU radio that mimics the imperfections…

机器学习 · 计算机科学 2018-01-08 Xiaoyu Liu , Diyu Yang , Aly El Gamal

In this paper, we propose an online path planning architecture that extends the model predictive control (MPC) formulation to consider future location uncertainties for safer navigation through cluttered environments. Our algorithm combines…

As massive multiple-input multiple-output (MIMO) becomes popular, direction of arrival (DOA) measurement has been made a real renaissance due to the high-resolution achieved. Thus, there is no doubt about DOA estimation using massive MIMO.…

信息论 · 计算机科学 2023-07-18 Jiangzhou Wang , Baihua Shi , Feng Shu , Qi Zhang , Di Wu , Qijuan Jie , Zhihong Zhuang , Siling Feng , Yijin Zhang

This work addresses the problem of direction-of-arrival (DOA) estimation in the presence of non-Gaussian, heavy-tailed, and spatially-colored interference. Conventionally, the interference is considered to be Gaussian-distributed and…

信号处理 · 电气工程与系统科学 2023-07-06 Stefan Feintuch , Joseph Tabrikian , Igal Bilik , Haim H. Permuter

Global Navigation Satellite System (GNSS) signals are subject to different kinds of events causing significant errors in positioning. This work explores the application of Machine Learning (ML) methods of anomaly detection applied to GNSS…

信号处理 · 电气工程与系统科学 2019-11-07 Evgenii Munin , Antoine Blais , Nicolas Couellan

Climate models are an important tool for the assessment of prospective climate change effects but they suffer from systematic and representation errors, especially for precipitation. Model output statistics (MOS) reduce these errors by…

大气与海洋物理 · 物理学 2020-12-21 Michael Steininger , Daniel Abel , Katrin Ziegler , Anna Krause , Heiko Paeth , Andreas Hotho