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Training-free anomalous sound detection (ASD) based on pre-trained audio embedding models has recently garnered significant attention, as it enables the detection of anomalous sounds using only normal reference data while offering improved…

音频与语音处理 · 电气工程与系统科学 2026-03-06 Kevin Wilkinghoff , Sarthak Yadav , Zheng-Hua Tan

In several supervised learning scenarios, auxiliary losses are used in order to introduce additional information or constraints into the supervised learning objective. For instance, knowledge distillation aims to mimic outputs of a powerful…

机器学习 · 计算机科学 2022-12-08 Durga Sivasubramanian , Ayush Maheshwari , Pradeep Shenoy , Prathosh AP , Ganesh Ramakrishnan

We consider a batch active learning scenario where the learner adaptively issues batches of points to a labeling oracle. Sampling labels in batches is highly desirable in practice due to the smaller number of interactive rounds with the…

机器学习 · 计算机科学 2022-06-14 Claudio Gentile , Zhilei Wang , Tong Zhang

Neural networks trained on real-world datasets with long-tailed label distributions are biased towards frequent classes and perform poorly on infrequent classes. The imbalance in the ratio of positive and negative samples for each class…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Kevin Duarte , Yogesh S. Rawat , Mubarak Shah

Partial Multi-label Learning (PML) is a type of weakly supervised learning where each training instance corresponds to a set of candidate labels, among which only some are true. In this paper, we introduce \our{}, a novel probabilistic…

机器学习 · 计算机科学 2024-03-13 Łukasz Struski , Adam Pardyl , Jacek Tabor , Bartosz Zieliński

Sensing is envisioned as a key network function of the 6G mobile networks. Artificial intelligence (AI)-empowered sensing fuses features of multiple sensing views from devices distributed in edge networks for the edge server to perform…

信息论 · 计算机科学 2023-02-21 Zhiyan Liu , Qiao Lan , Anders E. Kalør , Petar Popovski , Kaibin Huang

Event identification is increasingly recognized as crucial for enhancing the reliability, security, and stability of the electric power system. With the growing deployment of Phasor Measurement Units (PMUs) and advancements in data science,…

机器学习 · 计算机科学 2024-07-24 Nima Taghipourbazargani , Lalitha Sankar , Oliver Kosut

Weakly supervised semantic segmentation produces pixel-level localization from class labels; however, a classifier trained on such labels is likely to focus on a small discriminative region of the target object. We interpret this phenomenon…

计算机视觉与模式识别 · 计算机科学 2021-10-14 Jungbeom Lee , Jooyoung Choi , Jisoo Mok , Sungroh Yoon

We propose a simple but efficient method termed Guided Learning for weakly-labeled semi-supervised sound event detection (SED). There are two sub-targets implied in weakly-labeled SED: audio tagging and boundary detection. Instead of…

机器学习 · 计算机科学 2020-02-05 Liwei Lin , Xiangdong Wang , Hong Liu , Yueliang Qian

We solve the problem of salient object detection by investigating how to expand the role of pooling in convolutional neural networks. Based on the U-shape architecture, we first build a global guidance module (GGM) upon the bottom-up…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Jiang-Jiang Liu , Qibin Hou , Ming-Ming Cheng , Jiashi Feng , Jianmin Jiang

A fundamental problem of every intermittently-powered sensing system is that signals acquired by these systems over a longer period in time are also intermittent. As a consequence, these systems fail to capture parts of a longer-duration…

声音 · 计算机科学 2023-05-29 Mahathir Monjur , Yubo Luo , Zhenyu Wang , Shahriar Nirjon

In this paper, the performance of signaling strategies with high peak-to-average power ratio is analyzed in both coherent and noncoherent fading channels. Two recently proposed modulation schemes, namely on-off binary phase-shift keying and…

信息论 · 计算机科学 2007-07-13 Mustafa Cenk Gursoy

Datasets with noisy labels are a common occurrence in practical applications of classification methods. We propose a simple probabilistic method for training deep classifiers under input-dependent (heteroscedastic) label noise. We assume an…

机器学习 · 计算机科学 2020-11-16 Mark Collier , Basil Mustafa , Efi Kokiopoulou , Rodolphe Jenatton , Jesse Berent

Self-supervised representation learning can mitigate the limitations in recognition tasks with few manually labeled data but abundant unlabeled data---a common scenario in sound event research. In this work, we explore unsupervised…

声音 · 计算机科学 2020-11-17 Eduardo Fonseca , Diego Ortego , Kevin McGuinness , Noel E. O'Connor , Xavier Serra

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

We propose a new task for sound event detection (SED): sound event triage (SET). The goal of SET is to detect an arbitrary number of high-priority event classes while allowing misdetections of low-priority event classes where the priority…

声音 · 计算机科学 2023-01-12 Noriyuki Tonami , Keisuke Imoto

This paper proposes an active learning system for sound event detection (SED). It aims at maximizing the accuracy of a learned SED model with limited annotation effort. The proposed system analyzes an initially unlabeled audio dataset, from…

音频与语音处理 · 电气工程与系统科学 2020-09-10 Shuyang Zhao , Toni Heittola , Tuomas Virtanen

In the last couple of years, weakly labeled learning has turned out to be an exciting approach for audio event detection. In this work, we introduce webly labeled learning for sound events which aims to remove human supervision altogether…

声音 · 计算机科学 2019-07-16 Anurag Kumar , Ankit Shah , Bhiksha Raj , Alex Hauptmann

We might hope that when faced with unexpected inputs, well-designed software systems would fire off warnings. Machine learning (ML) systems, however, which depend strongly on properties of their inputs (e.g. the i.i.d. assumption), tend to…

机器学习 · 统计学 2019-10-29 Stephan Rabanser , Stephan Günnemann , Zachary C. Lipton

We introduce Integrated Weak Learning, a principled framework that integrates weak supervision into the training process of machine learning models. Our approach jointly trains the end-model and a label model that aggregates multiple…

机器学习 · 计算机科学 2022-06-22 Peter Hayes , Mingtian Zhang , Raza Habib , Jordan Burgess , Emine Yilmaz , David Barber