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Egocentric temporal action segmentation in videos is a crucial task in computer vision with applications in various fields such as mixed reality, human behavior analysis, and robotics. Although recent research has utilized advanced…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Sakib Reza , Balaji Sundareshan , Mohsen Moghaddam , Octavia Camps

We propose a novel probabilistic generative model for action sequences. The model is termed the Action Point Process VAE (APP-VAE), a variational auto-encoder that can capture the distribution over the times and categories of action…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Nazanin Mehrasa , Akash Abdu Jyothi , Thibaut Durand , Jiawei He , Leonid Sigal , Greg Mori

Multimodal emotion recognition (MER) is crucial for enabling emotionally intelligent systems that perceive and respond to human emotions. However, existing methods suffer from limited cross-modal interaction and imbalanced contributions…

Multimedia · Computer Science 2025-07-30 Zeyu Deng , Yanhui Lu , Jiashu Liao , Shuang Wu , Chongfeng Wei

Probabilistic generative models are attractive for scientific modeling because their inferred parameters can be used to generate hypotheses and design experiments. This requires that the learned model provide an accurate representation of…

Machine Learning · Statistics 2023-01-18 Liyun Tu , Austin Talbot , Neil Gallagher , David Carlson

We propose a VAE for Transformers by developing a variational information bottleneck regulariser for Transformer embeddings. We formalise the embedding space of Transformer encoders as mixture probability distributions, and use Bayesian…

Machine Learning · Computer Science 2022-08-15 James Henderson , Fabio Fehr

Due to the complex nature of human emotions and the diversity of emotion representation methods in humans, emotion recognition is a challenging field. In this research, three input modalities, namely text, audio (speech), and video, are…

Artificial Intelligence · Computer Science 2024-02-13 Minoo Shayaninasab , Bagher Babaali

Hybrid recommendations have recently attracted a lot of attention where user features are utilized as auxiliary information to address the sparsity problem caused by insufficient user-item interactions. However, extracted user features…

Information Retrieval · Computer Science 2022-11-22 Yaochen Zhu , Zhenzhong Chen

Visual Emotion Analysis (VEA), which aims to predict people's emotions towards different visual stimuli, has become an attractive research topic recently. Rather than a single label classification task, it is more rational to regard VEA as…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Jingyuan Yang , Jie Li , Leida Li , Xiumei Wang , Yuxuan Ding , Xinbo Gao

A sentiment analysis system powered by machine learning was created in this study to improve real-time social network public opinion monitoring. For sophisticated sentiment identification, the suggested approach combines cutting-edge…

Computation and Language · Computer Science 2025-02-25 Arsen Tolebay Nurlanuly

This paper proposes a non-parallel many-to-many voice conversion (VC) method using a variant of the conditional variational autoencoder (VAE) called an auxiliary classifier VAE (ACVAE). The proposed method has three key features. First, it…

Machine Learning · Statistics 2020-10-13 Hirokazu Kameoka , Takuhiro Kaneko , Kou Tanaka , Nobukatsu Hojo

Audio-visual emotion recognition (AVER) methods typically fuse utterance-level features, and even frame-level attention models seldom address the frame-rate mismatch across modalities. In this paper, we propose a Transformer-based framework…

Multimedia · Computer Science 2026-03-13 Inyong Koo , yeeun Seong , Minseok Son , Jaehyuk Jang , Changick Kim

Although semi-supervised variational autoencoder (SemiVAE) works in image classification task, it fails in text classification task if using vanilla LSTM as its decoder. From a perspective of reinforcement learning, it is verified that the…

Computation and Language · Computer Science 2016-11-28 Weidi Xu , Haoze Sun , Chao Deng , Ying Tan

The exponential growth of user-generated movie reviews on digital platforms has made accurate text sentiment classification a cornerstone task in natural language processing. Traditional models, including standard BERT and recurrent…

Computation and Language · Computer Science 2026-04-14 Qingyang Li

Social media networks have become a significant aspect of people's lives, serving as a platform for their ideas, opinions and emotions. Consequently, automated sentiment analysis (SA) is critical for recognising people's feelings in ways…

Computation and Language · Computer Science 2024-10-03 Israa Khalaf Salman Al-Tameemi , Mohammad-Reza Feizi-Derakhshi , Saeed Pashazadeh , Mohammad Asadpour

Human perception is inherently multimodal. We integrate, for instance, visual, proprioceptive and tactile information into one experience. Hence, multimodal learning is of importance for building robotic systems that aim at robustly…

Machine Learning · Computer Science 2024-11-04 Carlotta Langer , Yasmin Kim Georgie , Ilja Porohovoj , Verena Vanessa Hafner , Nihat Ay

Recently, live streaming platforms have gained immense popularity. Traditional video highlight detection mainly focuses on visual features and utilizes both past and future content for prediction. However, live streaming requires models to…

Multimedia · Computer Science 2024-07-18 Jiaxin Deng , Shiyao Wang , Dong Shen , Liqin Zhao , Fan Yang , Guorui Zhou , Gaofeng Meng

Variational auto-encoders (VAEs) are deep generative latent variable models that can be used for learning the distribution of complex data. VAEs have been successfully used to learn a probabilistic prior over speech signals, which is then…

Sound · Computer Science 2020-12-18 Mostafa Sadeghi , Simon Leglaive , Xavier Alameda-PIneda , Laurent Girin , Radu Horaud

YouTube Shorts, a new section launched by YouTube in 2021, is a direct competitor to short video platforms like TikTok. It reflects the rising demand for short video content among online users. Social media platforms are often flooded with…

Social and Information Networks · Computer Science 2024-10-28 Qinglan Wei , Yaqi Zhou , Longhui Xiao , Yuan Zhang

Currently successful methods for video description are based on encoder-decoder sentence generation using recur-rent neural networks (RNNs). Recent work has shown the advantage of integrating temporal and/or spatial attention mechanisms…

Computer Vision and Pattern Recognition · Computer Science 2017-03-13 Chiori Hori , Takaaki Hori , Teng-Yok Lee , Kazuhiro Sumi , John R. Hershey , Tim K. Marks

Recent advances in Convolutional Neural Network (CNN) model interpretability have led to impressive progress in visualizing and understanding model predictions. In particular, gradient-based visual attention methods have driven much recent…

Computer Vision and Pattern Recognition · Computer Science 2020-04-15 Wenqian Liu , Runze Li , Meng Zheng , Srikrishna Karanam , Ziyan Wu , Bir Bhanu , Richard J. Radke , Octavia Camps