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Video-based pretraining offers immense potential for learning strong visual representations on an unprecedented scale. Recently, masked video modeling methods have shown promising scalability, yet fall short in capturing higher-level…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Mohammadreza Salehi , Michael Dorkenwald , Fida Mohammad Thoker , Efstratios Gavves , Cees G. M. Snoek , Yuki M. Asano

Pre-trained contextual vision-and-language (V&L) models have achieved impressive performance on various benchmarks. However, existing models require a large amount of parallel image-caption data for pre-training. Such data are costly to…

计算与语言 · 计算机科学 2021-04-13 Liunian Harold Li , Haoxuan You , Zhecan Wang , Alireza Zareian , Shih-Fu Chang , Kai-Wei Chang

End-to-end training from scratch of current deep architectures for new computer vision problems would require Imagenet-scale datasets, and this is not always possible. In this paper we present a method that is able to take advantage of…

计算机视觉与模式识别 · 计算机科学 2017-05-25 Lluis Gomez , Yash Patel , Marçal Rusiñol , Dimosthenis Karatzas , C. V. Jawahar

The de-facto approach to many vision tasks is to start from pretrained visual representations, typically learned via supervised training on ImageNet. Recent methods have explored unsupervised pretraining to scale to vast quantities of…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Karan Desai , Justin Johnson

Self-supervised learning enables the training of large neural models without the need for large, labeled datasets. It has been generating breakthroughs in several fields, including computer vision, natural language processing, biology, and…

计算与语言 · 计算机科学 2023-12-19 Luis Lugo , Valentin Vielzeuf

Self-supervised learning (SSL) methods such as masked language modeling have shown massive performance gains by pretraining transformer models for a variety of natural language processing tasks. The follow-up research adapted similar…

计算机视觉与模式识别 · 计算机科学 2022-05-12 Gokul Karthik Kumar , Sahal Shaji Mullappilly , Abhishek Singh Gehlot

Self-supervised learning (SSL) based speech pre-training has attracted much attention for its capability of extracting rich representations learned from massive unlabeled data. On the other hand, the use of weakly-supervised data is less…

音频与语音处理 · 电气工程与系统科学 2023-06-30 Wangyou Zhang , Yanmin Qian

Although transformer-based models have shown strong performance in word- and sentence-level tasks, effectively representing long documents, especially in fields like law and medicine, remains difficult. Sparse attention mechanisms can…

计算与语言 · 计算机科学 2026-01-01 Waheed Ahmed Abro , Zied Bouraoui

Masked image modeling (MIM) has become a leading self-supervised learning strategy. MIMs such as Masked Autoencoder (MAE) learn strong representations by randomly masking input tokens for the encoder to process, with the decoder…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Taekyung Kim , Sanghyuk Chun , Byeongho Heo , Dongyoon Han

We describe a method to jointly pre-train speech and text in an encoder-decoder modeling framework for speech translation and recognition. The proposed method incorporates four self-supervised and supervised subtasks for cross modality…

To better support information retrieval tasks such as web search and open-domain question answering, growing effort is made to develop retrieval-oriented language models, e.g., RetroMAE and many others. Most of the existing works focus on…

计算与语言 · 计算机科学 2023-05-05 Shitao Xiao , Zheng Liu , Yingxia Shao , Zhao Cao

In this work, we explore self-supervised visual pre-training on images from diverse, in-the-wild videos for real-world robotic tasks. Like prior work, our visual representations are pre-trained via a masked autoencoder (MAE), frozen, and…

机器人学 · 计算机科学 2022-10-07 Ilija Radosavovic , Tete Xiao , Stephen James , Pieter Abbeel , Jitendra Malik , Trevor Darrell

Inspired by the recent success of sequence modeling in RL and the use of masked language model for pre-training, we propose a masked model for pre-training in RL, RePreM (Representation Pre-training with Masked Model), which trains the…

机器学习 · 计算机科学 2023-03-06 Yuanying Cai , Chuheng Zhang , Wei Shen , Xuyun Zhang , Wenjie Ruan , Longbo Huang

Spoken question answering (SQA) requires fine-grained understanding of both spoken documents and questions for the optimal answer prediction. In this paper, we propose novel training schemes for spoken question answering with a…

计算与语言 · 计算机科学 2021-09-09 Chenyu You , Nuo Chen , Yuexian Zou

Supervised learning methods have shown effectiveness in estimating spatial acoustic parameters such as time difference of arrival, direct-to-reverberant ratio and reverberation time. However, they still suffer from the simulation-to-reality…

声音 · 计算机科学 2024-09-10 Bing Yang , Xiaofei Li

The subtleties of human perception, as measured by vision scientists through the use of psychophysics, are important clues to the internal workings of visual recognition. For instance, measured reaction time can indicate whether a visual…

计算机视觉与模式识别 · 计算机科学 2021-06-24 Samuel Grieggs , Bingyu Shen , Greta Rauch , Pei Li , Jiaqi Ma , David Chiang , Brian Price , Walter J. Scheirer

Self-supervised pre-training (SSP) employs random image transformations to generate training data for visual representation learning. In this paper, we first present a modeling framework that unifies existing SSP methods as learning to…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Chunyuan Li , Xiujun Li , Lei Zhang , Baolin Peng , Mingyuan Zhou , Jianfeng Gao

Transformers have gained increasing popularity in a wide range of applications, including Natural Language Processing (NLP), Computer Vision and Speech Recognition, because of their powerful representational capacity. However, harnessing…

The past year has witnessed a rapid development of masked image modeling (MIM). MIM is mostly built upon the vision transformers, which suggests that self-supervised visual representations can be done by masking input image parts while…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Yunjie Tian , Lingxi Xie , Jiemin Fang , Mengnan Shi , Junran Peng , Xiaopeng Zhang , Jianbin Jiao , Qi Tian , Qixiang Ye

We study joint video and language (VL) pre-training to enable cross-modality learning and benefit plentiful downstream VL tasks. Existing works either extract low-quality video features or learn limited text embedding, while neglecting that…

计算机视觉与模式识别 · 计算机科学 2022-07-11 Hongwei Xue , Tiankai Hang , Yanhong Zeng , Yuchong Sun , Bei Liu , Huan Yang , Jianlong Fu , Baining Guo