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Hierarchical text classification, which aims to classify text documents into a given hierarchy, is an important task in many real-world applications. Recently, deep neural models are gaining increasing popularity for text classification due…

计算与语言 · 计算机科学 2019-01-01 Yu Meng , Jiaming Shen , Chao Zhang , Jiawei Han

In this report, we propose three novel methods for developing a sound event detection (SED) model for the DCASE 2024 Challenge Task 4. First, we propose an auxiliary decoder attached to the final convolutional block to improve feature…

音频与语音处理 · 电气工程与系统科学 2024-06-25 Sang Won Son , Jongyeon Park , Hong Kook Kim , Sulaiman Vesal , Jeong Eun Lim

We address the problem of weakly-supervised semantic segmentation (WSSS) using bounding box annotations. Although object bounding boxes are good indicators to segment corresponding objects, they do not specify object boundaries, making it…

计算机视觉与模式识别 · 计算机科学 2021-04-05 Youngmin Oh , Beomjun Kim , Bumsub Ham

There is a common observation that audio event classification is easier to deal with than detection. So far, this observation has been accepted as a fact and we lack of a careful analysis. In this paper, we reason the rationale behind this…

Label noise is emerging as a pressing issue in sound event classification. This arises as we move towards larger datasets that are difficult to annotate manually, but it is even more severe if datasets are collected automatically from…

声音 · 计算机科学 2019-10-29 Eduardo Fonseca , Frederic Font , Xavier Serra

Task 4 of the DCASE2018 challenge demonstrated that substantially more research is needed for a real-world application of sound event detection. Analyzing the challenge results it can be seen that most successful models are biased towards…

声音 · 计算机科学 2020-04-13 Heinrich Dinkel , Kai Yu

Naturally, fine-grained recognition, e.g., vehicle identification or bird classification, has specific hierarchical labels, where fine categories are always harder to be classified than coarse categories. However, most of the recent deep…

计算机视觉与模式识别 · 计算机科学 2021-11-29 Xinjie Li , Chun Yang , Songlu Chen , Chao Zhu , Xu-Cheng Yin

Fine-grained visual recognition is challenging because it highly relies on the modeling of various semantic parts and fine-grained feature learning. Bilinear pooling based models have been shown to be effective at fine-grained recognition,…

计算机视觉与模式识别 · 计算机科学 2018-07-27 Chaojian Yu , Xinyi Zhao , Qi Zheng , Peng Zhang , Xinge You

Sound event localization and detection (SELD) systems estimate both the direction-of-arrival (DOA) and class of sound sources over time. In the DCASE 2022 SELD Challenge (Task 3), models are designed to operate in a 4-channel setting. While…

This paper addresses the noisy label issue in audio event detection (AED) by refining strong labels as sequential labels with inaccurate timestamps removed. In AED, strong labels contain the occurrence of a specific event and its timestamps…

声音 · 计算机科学 2020-07-13 Jae-Bin Kim , Seongkyu Mun , Myungwoo Oh , Soyeon Choe , Yong-Hyeok Lee , Hyung-Min Park

Few-shot bioacoustic event detection is a task that detects the occurrence time of a novel sound given a few examples. Previous methods employ metric learning to build a latent space with the labeled part of different sound classes, also…

音频与语音处理 · 电气工程与系统科学 2022-07-19 Haohe Liu , Xubo Liu , Xinhao Mei , Qiuqiang Kong , Wenwu Wang , Mark D. Plumbley

This paper presents the sound event localization and detection (SELD) task setup for the DCASE 2019 challenge. The goal of the SELD task is to detect the temporal activities of a known set of sound event classes, and further localize them…

声音 · 计算机科学 2019-05-27 Sharath Adavanne , Archontis Politis , Tuomas Virtanen

Sound Event Localization and Detection refers to the problem of identifying the presence of independent or temporally-overlapped sound sources, correctly identifying to which sound class it belongs, estimating their spatial directions while…

音频与语音处理 · 电气工程与系统科学 2024-01-02 Francesca Ronchini , Daniel Arteaga , Andrés Pérez-López

The performance of sound event detection methods can significantly degrade when they are used in unseen conditions (e.g. recording devices, ambient noise). Domain adaptation is a promising way to tackle this problem. In this paper, we…

声音 · 计算机科学 2019-11-26 Shayan Gharib , Konstantinos Drossos , Eemi Fagerlund , Tuomas Virtanen

The increasing prominence of weakly labeled data nurtures a growing demand for object detection methods that can cope with minimal supervision. We propose an approach that automatically identifies discriminative configurations of visual…

计算机视觉与模式识别 · 计算机科学 2014-06-26 Hyun Oh Song , Yong Jae Lee , Stefanie Jegelka , Trevor Darrell

Strong labels are a necessity for evaluation of sound event detection methods, but often scarcely available due to the high resources required by the annotation task. We present a method for estimating strong labels using crowdsourced weak…

音频与语音处理 · 电气工程与系统科学 2021-07-27 Irene Martín-Morató , Manu Harju , Annamaria Mesaros

Research on sound event detection (SED) with weak labeling has mostly focused on presence/absence labeling, which provides no temporal information at all about the event occurrences. In this paper, we consider SED with sequential labeling,…

声音 · 计算机科学 2019-02-20 Yun Wang , Florian Metze

In this paper we present our work on Task 1 Acoustic Scene Classi- fication and Task 3 Sound Event Detection in Real Life Recordings. Among our experiments we have low-level and high-level features, classifier optimization and other…

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…

音频与语音处理 · 电气工程与系统科学 2021-03-12 Janek Ebbers , Reinhold Haeb-Umbach

Many typical applications of object detection operate within a prescribed false-positive range. In this situation the performance of a detector should be assessed on the basis of the area under the ROC curve over that range, rather than…

计算机视觉与模式识别 · 计算机科学 2015-06-30 Sakrapee Paisitkriangkrai , Chunhua Shen , Anton van den Hengel