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Multi-parameter cognition in a cognitive radio network (CRN) provides a more thorough understanding of the radio environments, and could potentially lead to far more intelligent and efficient spectrum usage for a secondary user. In this…

Signal Processing · Electrical Eng. & Systems 2019-10-02 Rui Zhang , Peng Cheng , Zhuo Chen , Yonghui Li , Branka Vucetic

We propose an algorithm for the blind separation of single-channel audio signals. It is based on a parametric model that describes the spectral properties of the sounds of musical instruments independently of pitch. We develop a novel…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-03 Sören Schulze , Emily J. King

Increasing concerns on intelligent spectrum sensing call for efficient training and inference technologies. In this paper, we propose a novel federated learning (FL) framework, dubbed federated spectrum learning (FSL), which exploits the…

Networking and Internet Architecture · Computer Science 2022-05-24 Bo Yang , Xuelin Cao , Chongwen Huang , Chau Yuen , Marco Di Renzo , Yong Liang Guan , Dusit Niyato , Lijun Qian , Merouane Debbah

Supervised fine-tuning (SFT) plays a critical role for pretrained large language models (LLMs), notably enhancing their capacity to acquire domain-specific knowledge while preserving or potentially augmenting their general-purpose…

Machine Learning · Computer Science 2026-03-31 Ali Taheri , Alireza Taban , Qizhou Wang , Shanshan Ye , Abdolreza Mirzaei , Tongliang Liu , Bo Han

Despite the large progress in supervised learning with neural networks, there are significant challenges in obtaining high-quality, large-scale and accurately labelled datasets. In such a context, how to learn in the presence of noisy…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Chen Feng , Georgios Tzimiropoulos , Ioannis Patras

In smart cities, detecting pedestrian falls is a major challenge to ensure the safety and quality of life of citizens. In this study, we propose a novel fall detection system using FLAMe (Federated Learning with Attention Mechanism), a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Byeonghun Kim , Byeongjoon Noh

Numerous researches have proved that deep neural networks (DNNs) can fit everything in the end even given data with noisy labels, and result in poor generalization performance. However, recent studies suggest that DNNs tend to gradually…

Machine Learning · Computer Science 2021-04-07 Hao Yang , Youzhi Jin , Ziyin Li , Deng-Bao Wang , Lei Miao , Xin Geng , Min-Ling Zhang

Deep Convolutional Neural Networks (CNN) enforces supervised information only at the output layer, and hidden layers are trained by back propagating the prediction error from the output layer without explicit supervision. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2016-06-07 Zhuolin Jiang , Yaming Wang , Larry Davis , Walt Andrews , Viktor Rozgic

Cognitive radio (CR) is considered as a key enabling technology for dynamic spectrum access to improve spectrum efficiency. Although the CR concept was invented with the core idea of realizing cognition, the research on measuring CR…

Networking and Internet Architecture · Computer Science 2018-03-21 Monireh Dabaghchian , Amir Alipour-Fanid , Songsong Liu , Kai Zeng , Xiaohua Li , Yu Chen

Deep learning has achieved great success in learning features from massive remote sensing images (RSIs). To better understand the connection between feature learning paradigms (e.g., unsupervised feature learning (USFL), supervised feature…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Chao Tao , Ji Qi , Mingning Guo , Qing Zhu , Haifeng Li

We propose a method using a long short-term memory (LSTM) network to estimate the noise power spectral density (PSD) of single-channel audio signals represented in the short time Fourier transform (STFT) domain. An LSTM network common to…

Signal Processing · Electrical Eng. & Systems 2020-11-11 Xiaofei Li , Simon Leglaive , Laurent Girin , Radu Horaud

Visual SLAM is particularly challenging in environments affected by noise, varying lighting conditions, and darkness. Learning-based optical flow algorithms can leverage multiple modalities to address these challenges, but traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Youjie Zhou , Guofeng Mei , Yiming Wang , Yi Wan , Fabio Poiesi

In order to enable spectrum sharing, spectrum sensing plays a crucial role in wireless communication. The challenges in wireless spectrum require collaboration among stakeholders to devise innovative solutions. This research explores the…

Systems and Control · Electrical Eng. & Systems 2023-10-18 Ahmed Temtam , Dimitrie Popescu

Compressive Sensing has been utilized in Cognitive Radio Networks (CRNs) to exploit the sparse nature of the occupation of the primary users. Also, distributed spectrum sensing has been proposed to tackle the wireless channel problems, like…

Information Theory · Computer Science 2016-06-14 Mohamed Seif , Tamer Elbatt , Karim G. Seddik

Low-rank adaptation (LoRA) has been demonstrated effective in reducing the trainable parameter number when fine-tuning a large foundation model (LLM). However, it still encounters computational and memory challenges when scaling to larger…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Yixian Shen , Qi Bi , Jia-Hong Huang , Hongyi Zhu , Andy D. Pimentel , Anuj Pathania

The memorization effect of deep neural networks (DNNs) plays a pivotal role in recent label noise learning methods. To exploit this effect, the model prediction-based methods have been widely adopted, which aim to exploit the outputs of…

Machine Learning · Computer Science 2022-06-28 Chuang Zhang , Li Shen , Jian Yang , Chen Gong

Wireless Sensor Networks (WSNs) are a cutting-edge domain in the field of intelligent sensing. Due to sensor failures and energy-saving strategies, the collected data often have massive missing data, hindering subsequent analysis and…

Machine Learning · Computer Science 2025-04-23 Chengjun Yu , Yixin Ran , Yangyi Xia , Jia Wu , Xiaojing Liu

Cognitive radio that supports a secondary and opportunistic access to licensed spectrum shows great potential to dramatically improve spectrum utilization. Spectrum sensing performed by secondary users to detect unoccupied spectrum bands,…

Information Theory · Computer Science 2009-05-29 Yan Xin , Honghai Zhang

Sound matching algorithms seek to approximate a target waveform by parametric audio synthesis. Deep neural networks have achieved promising results in matching sustained harmonic tones. However, the task is more challenging when targets are…

Sound · Computer Science 2023-03-14 Han Han , Vincent Lostanlen , Mathieu Lagrange

Contrastive self-supervised learning has been successfully used in many domains, such as images, texts, graphs, etc., to learn features without requiring label information. In this paper, we propose a new local contrastive feature learning…

Machine Learning · Computer Science 2022-11-22 Zhabiz Gharibshah , Xingquan Zhu