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The presence of a large number of bots on social media has adverse effects. The graph neural network (GNN) can effectively leverage the social relationships between users and achieve excellent results in detecting bots. Recently, more and…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Shuhao Shi , Kai Qiao , Zhengyan Wang , Jie Yang , Baojie Song , Jian Chen , Bin Yan

Deep subspace clustering (DSC) networks based on self-expressive model learn representation matrix, often implemented in terms of fully connected network, in the embedded space. After the learning is finished, representation matrix is used…

计算机视觉与模式识别 · 计算机科学 2024-01-31 Lovro Sindičić , Ivica Kopriva

In this paper, we investigate a deep learning approach for speech denoising through an efficient ensemble of specialist neural networks. By splitting up the speech denoising task into non-overlapping subproblems and introducing a…

音频与语音处理 · 电气工程与系统科学 2020-08-11 Aswin Sivaraman , Minje Kim

Generative modelling has been a topic at the forefront of machine learning research for a substantial amount of time. With the recent success in the field of machine learning, especially in deep learning, there has been an increased…

计算机视觉与模式识别 · 计算机科学 2021-03-24 M. M. A. Valiuddin , C. G. A. Viviers

The aim of this study is to implement a method to remove ambient noise in biomedical sounds captured in auscultation. We propose an incremental approach based on multichannel non-negative matrix partial co-factorization (NMPCF) for ambient…

Discrete diffusion models offer global context awareness and flexible parallel generation. However, uniform random noise schedulers in standard DLLM training overlook the highly non-uniform information density inherent in real-world…

机器学习 · 计算机科学 2026-03-18 Linrui Ma , Yufei Cui , Kai Han , Yunhe Wang

Time series classification (TSC) performance depends not only on architectural design but also on the diversity of input representations. In this work, we propose a scalable multi-scale convolutional framework that systematically integrates…

机器学习 · 计算机科学 2026-03-26 Celal Alagöz , Mehmet Kurnaz , Farhan Aadil

Automated bioacoustic analysis aids understanding and protection of both marine and terrestrial animals and their habitats across extensive spatiotemporal scales, and typically involves analyzing vast collections of acoustic data. With the…

音频与语音处理 · 电气工程与系统科学 2023-12-22 Burooj Ghani , Tom Denton , Stefan Kahl , Holger Klinck

Environmental Sound Classification (ESC) is an important and challenging problem, and feature representation is a critical and even decisive factor in ESC. Feature representation ability directly affects the accuracy of sound…

声音 · 计算机科学 2019-08-19 Tianhao Qiao , Shunqing Zhang , Zhichao Zhang , Shan Cao , Shugong Xu

Deep learning has dramatically improved the performance of sounds recognition. However, learning acoustic models directly from the raw waveform is still challenging. Current waveform-based models generally use time-domain convolutional…

声音 · 计算机科学 2018-03-29 Boqing Zhu , Changjian Wang , Feng Liu , Jin Lei , Zengquan Lu , Yuxing Peng

Although supervised convolutional neural networks (CNNs) often outperform conventional alternatives for denoising positron emission tomography (PET) images, they require many low- and high-quality reference PET image pairs. Herein, we…

Multiplicative noise widely exists in radar images, medical images and other important fields' images. Compared to normal noises, multiplicative noise has a generally stronger effect on the visual expression of images. Aiming at the…

图像与视频处理 · 电气工程与系统科学 2026-04-14 Xiao Siyao , Huang Libing , Zhang Shunsheng

Class imbalance, where certain classes have insufficient data, poses a critical challenge for robust classification, often biasing models toward majority classes. Distribution calibration offers a promising avenue to address this by…

机器学习 · 计算机科学 2025-10-23 Priyobrata Mondal , Faizanuddin Ansari , Swagatam Das

Image/video data is usually represented with multiple visual features. Fusion of multi-source information for establishing the attributes has been widely recognized. Multi-feature visual recognition has recently received much attention in…

计算机视觉与模式识别 · 计算机科学 2016-11-15 Lei Zhang , David Zhang

Cross-center data heterogeneity and annotation unreliability significantly challenge the intelligent diagnosis of diseases using brain signals. A notable example is the EEG-based diagnosis of neurodegenerative diseases, which features…

信号处理 · 电气工程与系统科学 2026-02-09 Zhenxi Song , Ruihan Qin , Huixia Ren , Zhen Liang , Yi Guo , Min Zhang , Zhiguo Zhang

With the rapid development of the low-altitude economy, air-ground integrated multi-access edge computing (MEC) systems are facing increasing demands for real-time and intelligent task scheduling. In such systems, task offloading and…

网络与互联网体系结构 · 计算机科学 2025-06-30 Yifan Xue , Ruihuai Liang , Bo Yang , Xuelin Cao , Zhiwen Yu , Mérouane Debbah , Chau Yuen

We propose a new representation learning solution for the classification of cognitive load based on Electroencephalogram (EEG). Our method integrates both time and frequency domains by first passing the raw EEG signals through the…

人机交互 · 计算机科学 2025-11-18 Prithila Angkan , Amin Jalali , Paul Hungler , Ali Etemad

Multi-label classification (MLC) requires predicting multiple labels per sample, often under heavy class imbalance and noisy conditions. Traditional approaches apply fixed thresholds or treat labels independently, overlooking context and…

机器学习 · 计算机科学 2025-05-07 Dmytro Shamatrin

In real-world scenarios, audio and video signals are often subject to environmental noise and limited acquisition conditions, resulting in extracted features containing excessive noise. Furthermore, there is an imbalance in data quality and…

计算与语言 · 计算机科学 2026-03-30 Ying Liu , Yuntao Shou , Wei Ai , Tao Meng , Keqin Li

Single-cell RNA sequencing (scRNA-seq) enables the study of cellular heterogeneity. Yet, clustering accuracy, and with it downstream analyses based on cell labels, remain challenging due to measurement noise and biological variability. In…

机器学习 · 计算机科学 2026-03-03 Dominik Meier , Shixing Yu , Sagnik Nandy , Promit Ghosal , Kyra Gan