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Automated heart sounds classification is a much-required diagnostic tool in the view of increasing incidences of heart related diseases worldwide. In this study, we conduct a comprehensive study of heart sounds classification by using…

计算机视觉与模式识别 · 计算机科学 2020-06-05 Balagopal Unnikrishnan , Pranshu Ranjan Singh , Xulei Yang , Matthew Chin Heng Chua

Unsupervised anomalous sound detection aims to detect unknown anomalous sounds by training a model using only normal audio data. Despite advancements in self-supervised methods, the issue of frequent false alarms when handling samples of…

声音 · 计算机科学 2025-09-19 Shun Huang , Zhihua Fang , Liang He

In recent years, many innovative solutions for recording and viewing sounds from a stethoscope have become available. However, to fully utilize such devices, there is a need for an automated approach for detecting abnormal lung sounds,…

A method for unsupervised contextual anomaly detection is proposed using a cross-linked pair of Variational Auto-Encoders for assigning a normality score to an observation. The method enables a distinct separation of contextual from…

机器学习 · 统计学 2019-04-02 Yaniv Shulman

We propose a method to perform audio event detection under the common constraint that only limited training data are available. In training a deep learning system to perform audio event detection, two practical problems arise. Firstly, most…

声音 · 计算机科学 2018-10-29 Veronica Morfi , Dan Stowell

The detection and the quantification of anomalies in image data are critical tasks in industrial scenes such as detecting micro scratches on product. In recent years, due to the difficulty of defining anomalies and the limit of correcting…

计算机视觉与模式识别 · 计算机科学 2018-11-08 Masanari Kimura , Takashi Yanagihara

Current weakly supervised video anomaly detection algorithms mostly use multiple instance learning (MIL) or their varieties. Almost all recent approaches focus on how to select the correct snippets for training to improve the performance.…

计算机视觉与模式识别 · 计算机科学 2023-04-21 Weijun Tan , Qi Yao , Jingfeng Liu

We describe a novel weakly labeled Audio Event Classification approach based on a self-supervised attention model. The weakly labeled framework is used to eliminate the need for expensive data labeling procedure and self-supervised…

音频与语音处理 · 电气工程与系统科学 2019-08-09 Bongjun Kim , Shabnam Ghaffarzadegan

Weakly supervised learning is a popular approach for training machine learning models in low-resource settings. Instead of requesting high-quality yet costly human annotations, it allows training models with noisy annotations obtained from…

计算与语言 · 计算机科学 2023-09-19 Dawei Zhu , Xiaoyu Shen , Marius Mosbach , Andreas Stephan , Dietrich Klakow

Anomaly detection (AD) is a crucial task in machine learning with various applications, such as detecting emerging diseases, identifying financial frauds, and detecting fake news. However, obtaining complete, accurate, and precise labels…

机器学习 · 计算机科学 2023-02-10 Minqi Jiang , Chaochuan Hou , Ao Zheng , Xiyang Hu , Songqiao Han , Hailiang Huang , Xiangnan He , Philip S. Yu , Yue Zhao

Anomaly detection in images plays a significant role for many applications across all industries, such as disease diagnosis in healthcare or quality assurance in manufacturing. Manual inspection of images, when extended over a monotonously…

计算机视觉与模式识别 · 计算机科学 2021-07-21 Vincent Wilmet , Sauraj Verma , Tabea Redl , Håkon Sandaker , Zhenning Li

This paper proposes a Sub-band Convolutional Neural Network for spoken term classification. Convolutional neural networks (CNNs) have proven to be very effective in acoustic applications such as spoken term classification, keyword spotting,…

音频与语音处理 · 电气工程与系统科学 2019-07-03 Chieh-Chi Kao , Ming Sun , Yixin Gao , Shiv Vitaladevuni , Chao Wang

Supervised deep learning has been widely used in the studies of automatic ECG classification, which largely benefits from sufficient annotation of large datasets. However, most of the existing large ECG datasets are roughly annotated, so…

机器学习 · 计算机科学 2020-12-11 Yang Liu , Kuanquan Wang , Qince Li , Runnan He , Yongfeng Yuan , Henggui Zhang

A Chief complaint (CC) is the reason for the medical visit as stated in the patient's own words. It helps medical professionals to quickly understand a patient's situation, and also serves as a short summary for medical text mining.…

计算与语言 · 计算机科学 2025-09-03 Zhimeng Luo , Zhendong Wang , Rui Meng , Diyang Xue , Adam Frisch , Daqing He

In this work, a novel deep neural network, designed to enhance the efficiency and effectiveness of unsupervised sound anomaly detection, is presented. The proposed model exploits an attention module and separable convolutions to identify…

音频与语音处理 · 电气工程与系统科学 2024-10-14 Michael Neri , Marco Carli

In this paper, we propose an anomaly detection algorithm for machine sounds with a deep complex network trained by self-supervision. Using the fact that phase continuity information is crucial for detecting abnormalities in time-series…

音频与语音处理 · 电气工程与系统科学 2023-12-22 Miseul Kim , Minh Tri Ho , Hong-Goo Kang

Fully convolutional neural networks (FCNNs) trained on a large number of images with strong pixel-level annotations have become the new state of the art for the semantic segmentation task. While there have been recent attempts to learn…

计算机视觉与模式识别 · 计算机科学 2017-04-24 Pavel Tokmakov , Karteek Alahari , Cordelia Schmid

In the 21st-century information age, with the development of big data technology, effectively extracting valuable information from massive data has become a key issue. Traditional data mining methods are inadequate when faced with…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Aoran Shen , Minghao Dai , Jiacheng Hu , Yingbin Liang , Shiru Wang , Junliang Du

Unsupervised anomalous sound detection is concerned with identifying sounds that deviate from what is defined as 'normal', without explicitly specifying the types of anomalies. A significant obstacle is the diversity and rareness of…

音频与语音处理 · 电气工程与系统科学 2020-11-06 Paul Primus , Verena Haunschmid , Patrick Praher , Gerhard Widmer

Video Individual Counting (VIC) aims to predict the number of unique individuals in a single video. % Existing methods learn representations based on trajectory labels for individuals, which are annotation-expensive. % To provide a more…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Xinyan Liu , Guorong Li , Yuankai Qi , Ziheng Yan , Zhenjun Han , Anton van den Hengel , Ming-Hsuan Yang , Qingming Huang