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Large sparsely-activated models have obtained excellent performance in multiple domains. However, such models are typically trained on a single modality at a time. We present the Language-Image MoE, LIMoE, a sparse mixture of experts model…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Basil Mustafa , Carlos Riquelme , Joan Puigcerver , Rodolphe Jenatton , Neil Houlsby

Speech models may be affected by performance imbalance in different population subgroups, raising concerns about fair treatment across these groups. Prior attempts to mitigate unfairness either focus on user-defined subgroups, potentially…

Computation and Language · Computer Science 2024-09-17 Alkis Koudounas , Flavio Giobergia , Eliana Pastor , Elena Baralis

Contrastive Learning has recently received interest due to its success in self-supervised representation learning in the computer vision domain. However, the origins of Contrastive Learning date as far back as the 1990s and its development…

Machine Learning · Computer Science 2020-10-29 Phuc H. Le-Khac , Graham Healy , Alan F. Smeaton

The recent advent of self-supervised pre-training techniques has led to a surge in the use of multimodal learning in form document understanding. However, existing approaches that extend the mask language modeling to other modalities…

Studies on emotion recognition (ER) show that combining lexical and acoustic information results in more robust and accurate models. The majority of the studies focus on settings where both modalities are available in training and…

Computation and Language · Computer Science 2019-06-26 Gustavo Aguilar , Viktor Rozgić , Weiran Wang , Chao Wang

The Multimodal Emotion Recognition challenge MER2024 focuses on recognizing emotions using audio, language, and visual signals. In this paper, we present our submission solutions for the Semi-Supervised Learning Sub-Challenge…

Sound · Computer Science 2024-09-10 Qi Fan , Yutong Li , Yi Xin , Xinyu Cheng , Guanglai Gao , Miao Ma

Video-grounded dialogue systems aim to integrate video understanding and dialogue understanding to generate responses that are relevant to both the dialogue and video context. Most existing approaches employ deep learning models and have…

Machine Learning · Computer Science 2023-08-08 Hung Le , Nancy F. Chen , Steven C. H. Hoi

Contrastive learning is a form of distance learning that aims to learn invariant features from two related representations. In this paper, we explore the bold hypothesis that an image and its caption can be simply regarded as two different…

Machine Learning · Computer Science 2022-11-22 Jiho Jang , Chaerin Kong , Donghyeon Jeon , Seonhoon Kim , Nojun Kwak

The success of modern multimodal representation learning relies on internet-scale datasets. Due to the low quality of a large fraction of raw web data, data curation has become a critical step in the training pipeline. Filtering using a…

Machine Learning · Computer Science 2025-12-17 Divyansh Pareek , Sewoong Oh , Simon S. Du

The goal of this work is to localize sound sources in visual scenes with a self-supervised approach. Contrastive learning in the context of sound source localization leverages the natural correspondence between audio and visual signals…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Sooyoung Park , Arda Senocak , Joon Son Chung

As medical diagnoses increasingly leverage multimodal data, machine learning models are expected to effectively fuse heterogeneous information while remaining robust to missing modalities. In this work, we propose a novel multimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Yi Gu , Kuniaki Saito , Jiaxin Ma

Self-supervised Contrastive Learning (CL) has been recently shown to be very effective in preventing deep networks from overfitting noisy labels. Despite its empirical success, the theoretical understanding of the effect of contrastive…

Machine Learning · Computer Science 2022-07-06 Yihao Xue , Kyle Whitecross , Baharan Mirzasoleiman

Conditional sound separation in multi-source audio mixtures without having access to single source sound data during training is a long standing challenge. Existing mix-and-separate based methods suffer from significant performance drop…

Sound · Computer Science 2024-04-03 Tanvir Mahmud , Saeed Amizadeh , Kazuhito Koishida , Diana Marculescu

This paper proposes a self-supervised learning approach for video features that results in significantly improved performance on downstream tasks (such as video classification, captioning and segmentation) compared to existing methods. Our…

Machine Learning · Computer Science 2019-10-01 Chen Sun , Fabien Baradel , Kevin Murphy , Cordelia Schmid

Contrastive learning is a well-established paradigm in representation learning. The standard framework of contrastive learning minimizes the distance between "similar" instances and maximizes the distance between dissimilar ones in the…

Machine Learning · Computer Science 2025-02-06 Naghmeh Ghanooni , Barbod Pajoum , Harshit Rawal , Sophie Fellenz , Vo Nguyen Le Duy , Marius Kloft

Vision-language models pre-trained on large scale of unlabeled biomedical images and associated reports learn generalizable semantic representations. These multi-modal representations can benefit various downstream tasks in the biomedical…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Xinliu Zhong , Kayhan Batmanghelich , Li Sun

Cross-modal retrieval is the task of retrieving samples of a given modality by using queries of a different one. Due to the wide range of practical applications, the problem has been mainly focused on the vision and language case, e.g. text…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Jorge Sánchez , Rodrigo Laguna

With the advent of large-scale multimodal video datasets, especially sequences with audio or transcribed speech, there has been a growing interest in self-supervised learning of video representations. Most prior work formulates the…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 Bruno Korbar , Fabio Petroni , Rohit Girdhar , Lorenzo Torresani

Methods based on supervised learning using annotations in an end-to-end fashion have been the state-of-the-art for classification problems. However, they may be limited in their generalization capability, especially in the low data regime.…

Sound · Computer Science 2023-08-14 Ilyass Moummad , Nicolas Farrugia

Bootstrap-based Self-Supervised Learning (SSL) has achieved remarkable progress in audio understanding. However, existing methods typically operate at a single level of granularity, limiting their ability to model the diverse temporal and…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-30 Bing Han , Chushu Zhou , Yifan Yang , Wei Wang , Chenda Li , Wangyou Zhang , Yanmin Qian