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In this paper we present ensembles of classifiers for automated animal audio classification, exploiting different data augmentation techniques for training Convolutional Neural Networks (CNNs). The specific animal audio classification…

Machine Learning · Computer Science 2020-03-17 Loris Nanni , Gianluca Maguolo , Michelangelo Paci

The lack of annotated training data in bioacoustics hinders the use of large-scale neural network models trained in a supervised way. In order to leverage a large amount of unannotated audio data, we propose AVES (Animal Vocalization…

Sound · Computer Science 2022-10-27 Masato Hagiwara

In this paper, we describe an approach for representation learning of audio signals for the task of COVID-19 detection. The raw audio samples are processed with a bank of 1-D convolutional filters that are parameterized as cosine modulated…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-28 Debottam Dutta , Debarpan Bhattacharya , Sriram Ganapathy , Amir H. Poorjam , Deepak Mittal , Maneesh Singh

For supervised speech enhancement, contextual information is important for accurate spectral mapping. However, commonly used deep neural networks (DNNs) are limited in capturing temporal contexts. To leverage long-term contexts for tracking…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-13 Xinmeng Xu , Jianjun Hao

Spatial understanding of the semantics of the surroundings is a key capability needed by autonomous cars to enable safe driving decisions. Recently, purely vision-based solutions have gained increasing research interest. In particular,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Christian Witte , Jens Behley , Cyrill Stachniss , Marvin Raaijmakers

Large Language Models (LLMs) have so far impressed the world, with unprecedented capabilities that emerge in models at large scales. On the vision side, transformer models (i.e., ViT) are following the same trend, achieving the best…

Computer Vision and Pattern Recognition · Computer Science 2023-10-30 Mustafa Shukor , Corentin Dancette , Matthieu Cord

Recent advancements in Deep and Self-Supervised Learning (SSL) have led to substantial improvements in Speech Emotion Recognition (SER) performance, reaching unprecedented levels. However, obtaining sufficient amounts of accurately labeled…

Computation and Language · Computer Science 2025-02-25 Bulat Khaertdinov , Pedro Jeuris , Annanda Sousa , Enrique Hortal

The use of self-supervised pre-training has emerged as a promising approach to enhance the performance of many different visual tasks. In this context, recent approaches have employed the Masked Image Modeling paradigm, which pre-trains a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Lorenzo Baraldi , Roberto Amoroso , Marcella Cornia , Lorenzo Baraldi , Andrea Pilzer , Rita Cucchiara

Recently, the vision transformer (ViT) has made breakthroughs in image recognition. Its self-attention mechanism (MSA) can extract discriminative labeling information of different pixel blocks to improve image classification accuracy.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Chao Hu , Liqiang Zhu , Weibin Qiu , Weijie Wu

In recent years, Speech Emotion Recognition (SER) has been investigated mainly transforming the speech signal into spectrograms that are then classified using Convolutional Neural Networks pretrained on generic images and fine tuned with…

Sound · Computer Science 2022-11-07 A. Arezzo , S. Berretti

Recent advances in song identification leverage deep neural networks to learn compact audio fingerprints directly from raw waveforms. While these methods perform well under controlled conditions, their accuracy drops significantly in…

Sound · Computer Science 2025-09-16 Christos Nikou , Theodoros Giannakopoulos

In many fields of research, labeled datasets are hard to acquire. This is where data augmentation promises to overcome the lack of training data in the context of neural network engineering and classification tasks. The idea here is to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-12 Steffen Illium , Robert Müller , Andreas Sedlmeier , Claudia Linnhoff-Popien

Image classification has achieved unprecedented advance with the the rapid development of deep learning. However, the classification of tiny object images is still not well investigated. In this paper, we first briefly review the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Ao Chen , Chen Li , Haoyuan Chen , Hechen Yang , Peng Zhao , Weiming Hu , Wanli Liu , Shuojia Zou , Marcin Grzegorzek

Chest imaging plays an essential role in diagnosing and predicting patients with COVID-19 with evidence of worsening respiratory status. Many deep learning-based approaches for pneumonia recognition have been developed to enable…

Image and Video Processing · Electrical Eng. & Systems 2024-01-17 Shengchao Chen , Sufen Ren , Guanjun Wang , Mengxing Huang , Chenyang Xue

Developing a robust algorithm to diagnose and quantify the severity of COVID-19 using Chest X-ray (CXR) requires a large number of well-curated COVID-19 datasets, which is difficult to collect under the global COVID-19 pandemic. On the…

Image and Video Processing · Electrical Eng. & Systems 2021-04-16 Sangjoon Park , Gwanghyun Kim , Yujin Oh , Joon Beom Seo , Sang Min Lee , Jin Hwan Kim , Sungjun Moon , Jae-Kwang Lim , Jong Chul Ye

When it comes to classifying child sexual abuse images, managing similar inter-class correlations and diverse intra-class correlations poses a significant challenge. Vision transformer models, unlike conventional deep convolutional network…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Hanxian He , Campbell Wilson , Thanh Thi Nguyen , Janis Dalins

Transformer has been very successful in various computer vision tasks and understanding the working mechanism of transformer is important. As touchstones, weakly-supervised semantic segmentation (WSSS) and class activation map (CAM) are…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Lianghui Zhu , Yingyue Li , Jiemin Fang , Yan Liu , Hao Xin , Wenyu Liu , Xinggang Wang

Fine-grained visual classification (FGVC) which aims at recognizing objects from subcategories is a very challenging task due to the inherently subtle inter-class differences. Most existing works mainly tackle this problem by reusing the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Ju He , Jie-Neng Chen , Shuai Liu , Adam Kortylewski , Cheng Yang , Yutong Bai , Changhu Wang

Multimodal image-language transformers have achieved impressive results on a variety of tasks that rely on fine-tuning (e.g., visual question answering and image retrieval). We are interested in shedding light on the quality of their…

Computation and Language · Computer Science 2021-06-18 Lisa Anne Hendricks , Aida Nematzadeh

This paper studies a text classification algorithm based on an improved Transformer to improve the performance and efficiency of the model in text classification tasks. Aiming at the shortcomings of the traditional Transformer model in…

Computation and Language · Computer Science 2025-01-24 Jia Gao , Guiran Liu , Binrong Zhu , Shicheng Zhou , Hongye Zheng , Xiaoxuan Liao