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Self-supervised representation learning has been highly promising for histopathology image analysis with numerous approaches leveraging their patient-slide-patch hierarchy to learn better representations. In this paper, we explore how the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Hasindri Watawana , Kanchana Ranasinghe , Tariq Mahmood , Muzammal Naseer , Salman Khan , Fahad Shahbaz Khan

A great challenge in speaker representation learning using deep models is to design learning objectives that can enhance the discrimination of unseen speakers under unseen domains. This work proposes a supervised contrastive learning…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-18 Zhe Li , Man-Wai Mak

Effectiveness of speech emotion recognition in real-world scenarios is often hindered by noisy environments and variability across datasets. This paper introduces a two-step approach to enhance the robustness and generalization of speech…

Sound · Computer Science 2025-10-13 Upasana Tiwari , Rupayan Chakraborty , Sunil Kumar Kopparapu

In this paper, we study different approaches for classifying emotions from speech using acoustic and text-based features. We propose to obtain contextualized word embeddings with BERT to represent the information contained in speech…

Machine Learning · Computer Science 2024-03-28 Leonardo Pepino , Pablo Riera , Luciana Ferrer , Agustin Gravano

The objective of this paper is to learn representations of speaker identity without access to manually annotated data. To do so, we develop a self-supervised learning objective that exploits the natural cross-modal synchrony between faces…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-05 Arsha Nagrani , Joon Son Chung , Samuel Albanie , Andrew Zisserman

While recent text-to-speech (TTS) systems have made remarkable strides toward human-level quality, the performance of cross-lingual TTS lags behind that of intra-lingual TTS. This gap is mainly rooted from the speaker-language entanglement…

Sound · Computer Science 2023-06-13 Ji-Hoon Kim , Hong-Sun Yang , Yoon-Cheol Ju , Il-Hwan Kim , Byeong-Yeol Kim

Electroencephalogram (EEG) is a non-invasive technique to record bioelectrical signals. Integrating supervised deep learning techniques with EEG signals has recently facilitated automatic analysis across diverse EEG-based tasks. However,…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Weining Weng , Yang Gu , Shuai Guo , Yuan Ma , Zhaohua Yang , Yuchen Liu , Yiqiang Chen

Recent work has begun exploring neural acoustic word embeddings---fixed-dimensional vector representations of arbitrary-length speech segments corresponding to words. Such embeddings are applicable to speech retrieval and recognition tasks,…

Computation and Language · Computer Science 2017-03-14 Wanjia He , Weiran Wang , Karen Livescu

This paper systematically investigates the effectiveness of various augmentations for contrastive self-supervised learning of electrocardiogram (ECG) signals and identifies the best parameters. The baseline of our proposed self-supervised…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Sahar Soltanieh , Ali Etemad , Javad Hashemi

EEG signals capture brain activity with high temporal and low spatial resolution, supporting applications such as neurological diagnosis, cognitive monitoring, and brain-computer interfaces. However, effective analysis is hindered by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Amirabbas Hojjati , Lu Li , Ibrahim Hameed , Anis Yazidi , Pedro G. Lind , Rabindra Khadka

In this paper we investigate whether electroencephalography (EEG) features can be used to improve the performance of continuous visual speech recognition systems. We implemented a connectionist temporal classification (CTC) based end-to-end…

Machine Learning · Computer Science 2020-01-01 Gautam Krishna , Mason Carnahan , Co Tran , Ahmed H Tewfik

Most existing deep learning-based acoustic scene classification (ASC) approaches directly utilize representations extracted from spectrograms to identify target scenes. However, these approaches pay little attention to the audio events…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-03 Yuanbo Hou , Siyang Song , Chuang Yu , Yuxin Song , Wenwu Wang , Dick Botteldooren

Expressive speech synthesis requires vibrant prosody and well-timed pauses. We propose an effective strategy to augment a small dataset to train an expressive end-to-end Text-to-Speech model. We merge audios of emotionally congruent text…

Sound · Computer Science 2026-02-12 Raymond Chung

In this paper, we study zero-shot learning in audio classification via semantic embeddings extracted from textual labels and sentence descriptions of sound classes. Our goal is to obtain a classifier that is capable of recognizing audio…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-12 Huang Xie , Tuomas Virtanen

In research areas with scarce data, representation learning plays a significant role. This work aims to enhance representation learning for clinical time series by deriving universal embeddings for clinical features, such as heart rate and…

Machine Learning · Computer Science 2024-02-07 Yurong Hu , Manuel Burger , Gunnar Rätsch , Rita Kuznetsova

Real-world sound scenes consist of time-varying collections of sound sources, each generating characteristic sound events that are mixed together in audio recordings. The association of these constituent sound events with their mixture and…

Electroencephalography (EEG) and Natural Language Processing (NLP) can be applied for education to measure students' comprehension in classroom lectures; currently, the two measures have been used separately. In this work, we propose a…

Computation and Language · Computer Science 2023-11-21 Phantharach Natnithikarat , Theerawit Wilaiprasitporn , Supavit Kongwudhikunakorn

Incremental improvements in accuracy of Convolutional Neural Networks are usually achieved through use of deeper and more complex models trained on larger datasets. However, enlarging dataset and models increases the computation and storage…

Audio and Speech Processing · Electrical Eng. & Systems 2018-07-24 Mahdi Hajibabaei , Dengxin Dai

Inspite the emerging importance of Speech Emotion Recognition (SER), the state-of-the-art accuracy is quite low and needs improvement to make commercial applications of SER viable. A key underlying reason for the low accuracy is the…

Sound · Computer Science 2020-03-24 Siddique Latif , Rajib Rana , Sara Khalifa , Raja Jurdak , Julien Epps , Björn W. Schuller

Using deep learning methods to classify EEG signals can accurately identify people's emotions. However, existing studies have rarely considered the application of the information in another domain's representations to feature selection in…

Signal Processing · Electrical Eng. & Systems 2023-03-22 Kexin Zhu , Xulong Zhang , Jianzong Wang , Ning Cheng , Jing Xiao