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Contrastive Language-Image Pre-training (CLIP) has significantly boosted the performance of various vision-language tasks by scaling up the dataset with image-text pairs collected from the web. However, the presence of intrinsic noise and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Kaicheng Yang , Jiankang Deng , Xiang An , Jiawei Li , Ziyong Feng , Jia Guo , Jing Yang , Tongliang Liu

In this paper, we present an approach to improve the robustness of BERT language models against word substitution-based adversarial attacks by leveraging adversarial perturbations for self-supervised contrastive learning. We create a…

Computation and Language · Computer Science 2022-05-25 Zhao Meng , Yihan Dong , Mrinmaya Sachan , Roger Wattenhofer

We create a reusable Transformer, BrainBERT, for intracranial recordings bringing modern representation learning approaches to neuroscience. Much like in NLP and speech recognition, this Transformer enables classifying complex concepts,…

Machine Learning · Computer Science 2023-03-01 Christopher Wang , Vighnesh Subramaniam , Adam Uri Yaari , Gabriel Kreiman , Boris Katz , Ignacio Cases , Andrei Barbu

While supervised learning has enabled great progress in many applications, unsupervised learning has not seen such widespread adoption, and remains an important and challenging endeavor for artificial intelligence. In this work, we propose…

Machine Learning · Computer Science 2019-01-23 Aaron van den Oord , Yazhe Li , Oriol Vinyals

Self-supervised pre-training using so-called "pretext" tasks has recently shown impressive performance across a wide range of modalities. In this work, we advance self-supervised learning from permutations, by pre-training a model to…

Sound · Computer Science 2021-05-05 Andrew N Carr , Quentin Berthet , Mathieu Blondel , Olivier Teboul , Neil Zeghidour

Deep learning models exhibit a preference for statistical fitting over logical reasoning. Spurious correlations might be memorized when there exists statistical bias in training data, which severely limits the model performance especially…

Machine Learning · Computer Science 2021-09-13 Wei Wang , Boxin Wang , Ning Shi , Jinfeng Li , Bingyu Zhu , Xiangyu Liu , Rong Zhang

Recent breakthroughs in self-supervised learning show that such algorithms learn visual representations that can be transferred better to unseen tasks than joint-training methods relying on task-specific supervision. In this paper, we found…

Machine Learning · Computer Science 2021-06-29 Hyuntak Cha , Jaeho Lee , Jinwoo Shin

Self-supervised representation learning has made significant leaps fueled by progress in contrastive learning, which seeks to learn transformations that embed positive input pairs nearby, while pushing negative pairs far apart. While…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Tri Huynh , Simon Kornblith , Matthew R. Walter , Michael Maire , Maryam Khademi

Contrastive learning has emerged as a transformative method for learning effective visual representations through the alignment of image and text embeddings. However, pairwise similarity computation in contrastive loss between image and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Sachin Mehta , Maxwell Horton , Fartash Faghri , Mohammad Hossein Sekhavat , Mahyar Najibi , Mehrdad Farajtabar , Oncel Tuzel , Mohammad Rastegari

Representation learning from unlabeled data has been of major interest in artificial intelligence research. While self-supervised speech representation learning has been popular in the speech research community, very few works have…

Video Question Answering (Video QA) requires fine-grained understanding of both video and language modalities to answer the given questions. In this paper, we propose novel training schemes for multiple-choice video question answering with…

Computation and Language · Computer Science 2020-12-15 Seonhoon Kim , Seohyeong Jeong , Eunbyul Kim , Inho Kang , Nojun Kwak

Image captioning, a popular topic in computer vision, has achieved substantial progress in recent years. However, the distinctiveness of natural descriptions is often overlooked in previous work. It is closely related to the quality of…

Computer Vision and Pattern Recognition · Computer Science 2017-10-10 Bo Dai , Dahua Lin

We present a new self-supervised pre-training of Vision Transformers for dense prediction tasks. It is based on a contrastive loss across views that compares pixel-level representations to global image representations. This strategy…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Jaonary Rabarisoa , Valentin Belissen , Florian Chabot , Quoc-Cuong Pham

Self-supervised sentence representation learning is the task of constructing an embedding space for sentences without relying on human annotation efforts. One straightforward approach is to finetune a pretrained language model (PLM) with a…

The pre-training models such as BERT have achieved great results in various natural language processing problems. However, a large number of parameters need significant amounts of memory and the consumption of inference time, which makes it…

Computation and Language · Computer Science 2020-12-15 Hao Fu , Shaojun Zhou , Qihong Yang , Junjie Tang , Guiquan Liu , Kaikui Liu , Xiaolong Li

Contrastive representation learning has gained much attention due to its superior performance in learning representations from both image and sequential data. However, the learned representations could potentially lead to performance…

Computation and Language · Computer Science 2022-11-01 Jianfeng Chi , William Shand , Yaodong Yu , Kai-Wei Chang , Han Zhao , Yuan Tian

Contrastive Language-Image Pre-training (CLIP) on large-scale image-caption datasets learns representations that can achieve remarkable zero-shot generalization. However, such models require a massive amount of pre-training data. Improving…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Siddharth Joshi , Arnav Jain , Ali Payani , Baharan Mirzasoleiman

Several multi-modality representation learning approaches such as LXMERT and ViLBERT have been proposed recently. Such approaches can achieve superior performance due to the high-level semantic information captured during large-scale…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Lei Shi , Kai Shuang , Shijie Geng , Peng Su , Zhengkai Jiang , Peng Gao , Zuohui Fu , Gerard de Melo , Sen Su

Convolutional Neural Networks have been a subject of great importance over the past decade and great strides have been made in their utility for producing state of the art performance in many computer vision problems. However, the behavior…

Computer Vision and Pattern Recognition · Computer Science 2017-08-04 Swami Sankaranarayanan , Arpit Jain , Ser Nam Lim

Vision transformers (ViT) have made substantial progress for classification tasks in computer vision. Recently, Gong et. al. '21, introduced attention-based modeling for several audio tasks. However, relatively unexplored is the use of a…

Sound · Computer Science 2024-07-08 Chirag Goel , Surya Koppisetti , Ben Colman , Ali Shahriyari , Gaurav Bharaj