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Due to the technological progress of the last decades, Community Detection has become a major topic in machine learning. However, there is still a huge gap between practical and theoretical results, as theoretically optimal procedures often…

统计理论 · 数学 2022-08-26 Franz Besold , Vladimir Spokoiny

We propose a novel approach for change-point detection and parameter learning in multivariate non-stationary time series exhibiting oscillatory behaviour. We approximate the process through a piecewise function defined by a sum of…

统计方法学 · 统计学 2026-02-02 Nicolas Bianco , Lorenzo Cappello

Objective: A novel structure based on channel-wise attention mechanism is presented in this paper. Embedding with the proposed structure, an efficient classification model that accepts multi-lead electrocardiogram (ECG) as input is…

信号处理 · 电气工程与系统科学 2020-03-27 Hao Tung , Chao Zheng , Xinsheng Mao , Dahong Qian

The parameters of support vector machines (SVMs) such as the penalty parameter and the kernel parameters have a great impact on the classification accuracy and the complexity of the SVM model. Therefore, the model selection in SVM involves…

机器学习 · 计算机科学 2020-07-13 Alaa Tharwat

Feature extraction plays an important role in Electrocardiogram (ECG) Beats classification system. Compared to other popular methods, VQ method performs well in feature extraction from ECG with advantages of dimensionality reduction. In VQ…

信号处理 · 电气工程与系统科学 2020-09-09 Nanyu Li , Yujuan Si , Di Wang , Tong Liu , Jinrun Yu

Early and accurate detection of cardiac arrhythmias is vital for timely diagnosis and intervention. We propose a lightweight deep learning model combining 1D Convolutional Neural Networks (CNN), attention mechanisms, and Bidirectional Long…

机器学习 · 计算机科学 2025-11-13 Vamsikrishna Thota , Hardik Prajapati , Yuvraj Joshi , Shubhangi Rathi

Identification of bird species from audio records is one of the challenging tasks due to the existence of multiple species in the same recording, noise in the background, and long-term recording. Besides, choosing a proper acoustic feature…

声音 · 计算机科学 2022-01-04 Nahian Ibn Hasan

Objective: This paper presents a novel heart sound segmentation algorithm based on Temporal-Framing Adaptive Network (TFAN), including state transition loss and dynamic inference for decoding the most likely state sequence. Methods: In…

信号处理 · 电气工程与系统科学 2020-07-21 Xingyao Wang , Chengyu Liu , Yuwen Li , Xianghong Cheng , Jianqing Li , Gari D. Clifford

This paper aims to classify a single PCG recording as normal or abnormal for computer-aided diagnosis. The proposed framework for this challenge has four steps: preprocessing, feature extraction, training and validation. In the…

信号处理 · 电气工程与系统科学 2018-10-23 Hong Tang , Huaming Chen , Ting Li , Mingjun Zhong

It has always been a big challenge to identify subtle changes in Electroencephalogram (EEG) signals. Minor differences often lead to vital decisions, for example, which grade a certain tumour belong to or whether a haemorrhage can result in…

系统与控制 · 电气工程与系统科学 2022-06-01 Debojyoti Seth

We propose two deep neural network architectures for classification of arbitrary-length electrocardiogram (ECG) recordings and evaluate them on the atrial fibrillation (AF) classification data set provided by the PhysioNet/CinC Challenge…

机器学习 · 计算机科学 2018-04-10 Martin Zihlmann , Dmytro Perekrestenko , Michael Tschannen

Genome sequencing projects are rapidly increasing the number of high-dimensional protein sequence datasets. Clustering a high-dimensional protein sequence dataset using traditional machine learning approaches poses many challenges. Many…

The rapid advancements in Artificial Intelligence, specifically Machine Learning (ML) and Deep Learning (DL), have opened new prospects in medical sciences for improved diagnosis, prognosis, and treatment of severe health conditions. This…

机器学习 · 计算机科学 2024-12-11 Atit Pokharel , Shashank Dahal , Pratik Sapkota , Bhupendra Bimal Chhetri

To infer the parameters of mechanistic models with intractable likelihoods, techniques such as approximate Bayesian computation (ABC) are increasingly being adopted. One of the main disadvantages of ABC in practical situations, however, is…

统计计算 · 统计学 2018-08-03 Jonathan U Harrison , Ruth E Baker

This paper proposes a framework based on deep convolutional neural networks (CNNs) for automatic heart sound classification using short-segments of individual heart beats. We design a 1D-CNN that directly learns features from raw…

声音 · 计算机科学 2020-04-27 Fuad Noman , Chee-Ming Ting , Sh-Hussain Salleh , Hernando Ombao

The all-relevant problem of feature selection is the identification of all strongly and weakly relevant attributes. This problem is especially hard to solve for time series classification and regression in industrial applications such as…

机器学习 · 计算机科学 2017-05-23 Maximilian Christ , Andreas W. Kempa-Liehr , Michael Feindt

One of the biggest challenges of acoustic scene classification (ASC) is to find proper features to better represent and characterize environmental sounds. Environmental sounds generally involve more sound sources while exhibiting less…

声音 · 计算机科学 2019-04-11 Hongwei Song , Jiqing Han , Shiwen Deng

A feature selection algorithm should ideally satisfy four conditions: reliably extract relevant features; be able to identify non-linear feature interactions; scale linearly with the number of features and dimensions; allow the…

机器学习 · 计算机科学 2019-01-15 Zhixiang Eddie Xu , Gao Huang , Kilian Q. Weinberger , Alice X. Zheng

For multimodal skeleton-based action recognition, Graph Convolutional Networks (GCNs) are effective models. Still, their reliance on floating-point computations leads to high energy consumption, limiting their applicability in…

计算机视觉与模式识别 · 计算机科学 2025-10-31 Naichuan Zheng , Yuchen Du , Hailun Xia , Zeyu Liang

We propose a method for generating an electrocardiogram (ECG) signal for one cardiac cycle using a variational autoencoder. Using this method we extracted a vector of new 25 features, which in many cases can be interpreted. The generated…

信号处理 · 电气工程与系统科学 2020-02-04 V. V. Kuznetsov , V. A. Moskalenko , N. Yu. Zolotykh