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Patronizing and condescending language (PCL) has a large harmful impact and is difficult to detect, both for human judges and existing NLP systems. At SemEval-2022 Task 4, we propose a novel Transformer-based model and its ensembles to…

Computation and Language · Computer Science 2022-07-19 Dou Hu , Mengyuan Zhou , Xiyang Du , Mengfei Yuan , Meizhi Jin , Lianxin Jiang , Yang Mo , Xiaofeng Shi

The Detection and Classification of Acoustic Scenes and Events Challenge Task 4 aims to advance sound event detection (SED) systems in domestic environments by leveraging training data with different supervision uncertainty. Participants…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-13 Samuele Cornell , Janek Ebbers , Constance Douwes , Irene Martín-Morató , Manu Harju , Annamaria Mesaros , Romain Serizel

Sound event localization and detection (SELD) combines the identification of sound events with the corresponding directions of arrival (DOA). Recently, event-oriented track output formats have been adopted to solve this problem; however,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-11 Jin Sob Kim , Hyun Joon Park , Wooseok Shin , Sung Won Han

Sound event detection systems typically consist of two stages: extracting hand-crafted features from the raw audio waveform, and learning a mapping between these features and the target sound events using a classifier. Recently, the focus…

Sound · Computer Science 2018-05-11 Emre Çakır , Tuomas Virtanen

Federated learning (FL) is a privacy-preserving machine learning method that has been proposed to allow training of models using data from many different clients, without these clients having to transfer all their data to a central server.…

Sound · Computer Science 2021-05-19 Marc C. Green , Mark D. Plumbley

In this paper we present our system for the detection and classification of acoustic scenes and events (DCASE) 2020 Challenge Task 4: Sound event detection and separation in domestic environments. We introduce two new models: the…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-12 Janek Ebbers , Reinhold Haeb-Umbach

This work explores domain generalization (DG) for sound event detection (SED), advancing adaptability to real-world scenarios. Our approach employs a mean-teacher framework with domain generalization named DG-SED to integrate heterogeneous…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-27 Yang Xiao , Han Yin , Jisheng Bai , Rohan Kumar Das

In this technique report, we present a bunch of methods for the task 4 of Detection and Classification of Acoustic Scenes and Events 2017 (DCASE2017) challenge. This task evaluates systems for the large-scale detection of sound events using…

Sound · Computer Science 2017-11-28 Yong Xu , Qiuqiang Kong , Wenwu Wang , Mark D. Plumbley

This report presents our systems submitted to the audio-only and audio-visual tracks of the DCASE2025 Task 3 Challenge: Stereo Sound Event Localization and Detection (SELD) in Regular Video Content. SELD is a complex task that combines…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-08 Davide Berghi , Philip J. B. Jackson

In this study, we present a simple multi-channel framework for contrastive learning (MC-SimCLR) to encode 'what' and 'where' of spatial audios. MC-SimCLR learns joint spectral and spatial representations from unlabeled spatial audios,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-29 Xilin Jiang , Cong Han , Yinghao Aaron Li , Nima Mesgarani

Recently, speech separation (SS) task has achieved remarkable progress driven by deep learning technique. However, it is still challenging to separate target speech from noisy mixture, as the neural model is vulnerable to assign background…

Sound · Computer Science 2024-01-09 Zizheng Zhang , Chen Chen , Hsin-Hung Chen , Xiang Liu , Yuchen Hu , Eng Siong Chng

Research on sound event detection (SED) in environmental settings has seen increased attention in recent years. The large amounts of (private) domestic or urban audio data needed raise significant logistical and privacy concerns. The…

This report proposes a frequency dynamic convolution (FDY) with a large kernel attention (LKA)-convolutional recurrent neural network (CRNN) with a pre-trained bidirectional encoder representation from audio transformers (BEATs)…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-13 Ji Won Kim , Sang Won Son , Yoonah Song , Hong Kook Kim , Il Hoon Song , Jeong Eun Lim

Sound event detection is a core module for acoustic environmental analysis. Semi-supervised learning technique allows to largely scale up the dataset without increasing the annotation budget, and recently attracts lots of research…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-02 Xiaofei Li

Learning meaningful frame-wise features on a partially labeled dataset is crucial to semi-supervised sound event detection. Prior works either maintain consistency on frame-level predictions or seek feature-level similarity among…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-18 Yiming Li , Xiangdong Wang , Hong Liu , Rui Tao , Long Yan , Kazushige Ouchi

In this paper, we propose addressing the lack of strongly labeled data by using pseudo strongly labeled data approximated using Convolutive Nonnegative Matrix Factorization. Using this set of data, we then train a novel architecture called…

Audio and Speech Processing · Electrical Eng. & Systems 2021-08-03 Teck Kai Chan , Cheng Siong Chin

Sound Event Localization and Detection (SELD) combines the Sound Event Detection (SED) with the corresponding Direction Of Arrival (DOA). Recently, adopted event oriented multi-track methods affect the generality in polyphonic environments…

Sound · Computer Science 2026-02-02 Xueping Zhang , Yaxiong Chen , Ruilin Yao , Yunfei Zi , Shengwu Xiong

In this paper we propose a novel learning framework called Supervised and Weakly Supervised Learning where the goal is to learn simultaneously from weakly and strongly labeled data. Strongly labeled data can be simply understood as fully…

Machine Learning · Computer Science 2017-02-21 Anurag Kumar , Bhiksha Raj

Polyphonic sound event detection and localization (SELD) task is challenging because it is difficult to jointly optimize sound event detection (SED) and direction-of-arrival (DOA) estimation in the same network. We propose a general network…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-17 Thi Ngoc Tho Nguyen , Ngoc Khanh Nguyen , Huy Phan , Lam Pham , Kenneth Ooi , Douglas L. Jones , Woon-Seng Gan

Continual Learning (CL) investigates how to train Deep Networks on a stream of tasks without incurring forgetting. CL settings proposed in literature assume that every incoming example is paired with ground-truth annotations. However, this…

Machine Learning · Statistics 2022-08-30 Matteo Boschini , Pietro Buzzega , Lorenzo Bonicelli , Angelo Porrello , Simone Calderara