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Training an effective video-and-language model intuitively requires multiple frames as model inputs. However, it is unclear whether using multiple frames is beneficial to downstream tasks, and if yes, whether the performance gain is worth…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Jie Lei , Tamara L. Berg , Mohit Bansal

Continual learning has recently attracted attention from the research community, as it aims to solve long-standing limitations of classic supervisedly-trained models. However, most research on this subject has tackled continual learning in…

Computer Vision and Pattern Recognition · Computer Science 2023-04-27 Giulia Castagnolo , Concetto Spampinato , Francesco Rundo , Daniela Giordano , Simone Palazzo

Learning new tasks accumulatively without forgetting remains a critical challenge in continual learning. Generative experience replay addresses this challenge by synthesizing pseudo-data points for past learned tasks and later replaying…

Machine Learning · Computer Science 2023-10-09 Zizhao Hu , Mohammad Rostami

Image compression emerges as a pivotal tool in the efficient handling and transmission of digital images. Its ability to substantially reduce file size not only facilitates enhanced data storage capacity but also potentially brings…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Justin Yang , Zhihao Duan , Andrew Peng , Yuning Huang , Jiangpeng He , Fengqing Zhu

For future learning systems, incremental learning is desirable because it allows for: efficient resource usage by eliminating the need to retrain from scratch at the arrival of new data; reduced memory usage by preventing or limiting the…

Machine Learning · Computer Science 2022-10-12 Marc Masana , Xialei Liu , Bartlomiej Twardowski , Mikel Menta , Andrew D. Bagdanov , Joost van de Weijer

Deep models, e.g., CNNs and Vision Transformers, have achieved impressive achievements in many vision tasks in the closed world. However, novel classes emerge from time to time in our ever-changing world, requiring a learning system to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Da-Wei Zhou , Qi-Wei Wang , Zhi-Hong Qi , Han-Jia Ye , De-Chuan Zhan , Ziwei Liu

Algorithm selection is commonly used to predict the best solver from a portfolio per per-instance. In many real scenarios, instances arrive in a stream: new instances become available over time, while the number of class labels can also…

Machine Learning · Computer Science 2025-06-03 Mate Botond Nemeth , Emma Hart , Kevin Sim , Quentin Renau

The practicality of a video surveillance system is adversely limited by the amount of queries that can be placed on human resources and their vigilance in response. To transcend this limitation, a major effort under way is to include…

Computer Vision and Pattern Recognition · Computer Science 2014-05-16 Samaneh Khoshrou , Jaime S. Cardoso , Luis F. Teixeira

Recent video class-incremental learning usually excessively pursues the accuracy of the newly seen classes and relies on memory sets to mitigate catastrophic forgetting of the old classes. However, limited storage only allows storing a few…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Jian Jiao , Yu Dai , Hefei Mei , Heqian Qiu , Chuanyang Gong , Shiyuan Tang , Xinpeng Hao , Hongliang Li

Continual Learning is considered a key step toward next-generation Artificial Intelligence. Among various methods, replay-based approaches that maintain and replay a small episodic memory of previous samples are one of the most successful…

Machine Learning · Computer Science 2022-12-27 Guangji Bai , Chen Ling , Yuyang Gao , Liang Zhao

Modern machine learning systems need to be able to cope with constantly arriving and changing data. Two main areas of research dealing with such scenarios are continual learning and data stream mining. Continual learning focuses on…

Machine Learning · Computer Science 2021-04-27 Łukasz Korycki , Bartosz Krawczyk

With the emergence of Transformers and Vision-Language Models (VLMs) such as CLIP, fine-tuning large pre-trained models has recently become a prevalent strategy in Continual Learning. This has led to the development of numerous prompting…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Emanuele Frascaroli , Aniello Panariello , Pietro Buzzega , Lorenzo Bonicelli , Angelo Porrello , Simone Calderara

Predictive learning ideally builds the world model of physical processes in one or more given environments. Typical setups assume that we can collect data from all environments at all times. In practice, however, different prediction tasks…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Geng Chen , Wendong Zhang , Han Lu , Siyu Gao , Yunbo Wang , Mingsheng Long , Xiaokang Yang

Deep networks allow to obtain outstanding results in semantic segmentation, however they need to be trained in a single shot with a large amount of data. Continual learning settings where new classes are learned in incremental steps and…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Andrea Maracani , Umberto Michieli , Marco Toldo , Pietro Zanuttigh

Understanding temporal information and how the visual world changes over time is a fundamental ability of intelligent systems. In video understanding, temporal information is at the core of many current challenges, including compression,…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Laura Sevilla-Lara , Shengxin Zha , Zhicheng Yan , Vedanuj Goswami , Matt Feiszli , Lorenzo Torresani

Online continual learning aims to get closer to a live learning experience by learning directly on a stream of data with temporally shifting distribution and by storing a minimum amount of data from that stream. In this empirical…

Current state-of-the-art approaches to video understanding adopt temporal jittering to simulate analyzing the video at varying frame rates. However, this does not work well for multirate videos, in which actions or subactions occur at…

Computer Vision and Pattern Recognition · Computer Science 2018-10-31 Yi Zhu , Shawn Newsam

This paper presents a practical and simple yet efficient method to effectively deal with the catastrophic forgetting for Class Incremental Learning (CIL) tasks. CIL tends to learn new concepts perfectly, but not at the expense of…

Machine Learning · Computer Science 2021-03-30 Bahram Mohammadi , Mohammad Sabokrou

The standard way of training video models entails sampling at each iteration a single clip from a video and optimizing the clip prediction with respect to the video-level label. We argue that a single clip may not have enough temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Xitong Yang , Haoqi Fan , Lorenzo Torresani , Larry Davis , Heng Wang

Most existing approaches to video instance segmentation comprise multiple modules that are heuristically combined to produce the final output. Formulating a purely learning-based method instead, which models both the temporal aspect as well…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Joakim Johnander , Emil Brissman , Martin Danelljan , Michael Felsberg