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Transfer learning enhances learning across tasks, by leveraging previously learned representations -- if they are properly chosen. We describe an efficient method to accurately estimate the appropriateness of a previously trained model for…

Multi-source transfer learning has been proven effective when within-target labeled data is scarce. Previous work focuses primarily on exploiting domain similarities and assumes that source domains are richly or at least comparably labeled.…

Machine Learning · Computer Science 2018-07-09 Zirui Wang , Jaime Carbonell

Lesion segmentation of ultrasound medical images based on deep learning techniques is a widely used method for diagnosing diseases. Although there is a large amount of ultrasound image data in medical centers and other places, labeled…

Image and Video Processing · Electrical Eng. & Systems 2024-01-17 Yifu Zhang , Hongru Li , Tao Yang , Rui Tao , Zhengyuan Liu , Shimeng Shi , Jiansong Zhang , Ning Ma , Wujin Feng , Zhanhu Zhang , Xinyu Zhang

Intermediate task transfer learning can greatly improve model performance. If, for example, one has little training data for emotion detection, first fine-tuning a language model on a sentiment classification dataset may improve performance…

Computation and Language · Computer Science 2024-10-22 David Schulte , Felix Hamborg , Alan Akbik

Given a set of pre-trained models, how can we quickly and accurately find the most useful pre-trained model for a downstream task? Transferability measurement is to quantify how transferable is a pre-trained model learned on a source task…

Machine Learning · Computer Science 2023-08-14 Huiwen Xu , U Kang

Transfer learning leverages knowledge from other domains and has been successful in many applications. Transfer learning methods rely on the overall similarity of the source and target domains. However, in some cases, it is impossible to…

Computer Vision and Pattern Recognition · Computer Science 2023-06-30 Yifu Zhang , Hongru Li , Shimeng Shi , Youqi Li , Jiansong Zhang

Transfer learning methods endeavor to leverage relevant knowledge from existing source pre-trained models or datasets to solve downstream target tasks. With the increase in the scale and quantity of available pre-trained models nowadays, it…

Machine Learning · Computer Science 2024-02-26 Yuhe Ding , Bo Jiang , Aijing Yu , Aihua Zheng , Jian Liang

We propose a fine-tuning algorithm for brain tumor segmentation that needs only a few data samples and helps networks not to forget the original tasks. Our approach is based on active learning and meta-learning. One of the difficulties in…

Image and Video Processing · Electrical Eng. & Systems 2023-05-17 Seungyub Han , Yeongmo Kim , Seokhyeon Ha , Jungwoo Lee , Seunghong Choi

This paper demonstrates that simple features available during the calibration of a brain-computer interface can be utilized for source data selection to improve the performance of the brain-computer interface for a new target user through…

Human-Computer Interaction · Computer Science 2024-10-22 Frida Heskebeck , Carolina Bergeling , Bo Bernhardsson

The task of medical image segmentation commonly involves an image reconstruction step to convert acquired raw data to images before any analysis. However, noises, artifacts and loss of information due to the reconstruction process are…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Qiaoying Huang , Xiao Chen , Dimitris Metaxas , Mariappan S. Nadar

In Brain-Computer Interfacing (BCI), due to inter-subject non-stationarities of electroencephalogram (EEG), classifiers are trained and tested using EEG from the same subject. When physical disabilities bottleneck the natural modality of…

Signal Processing · Electrical Eng. & Systems 2019-04-09 Monalisa Pal , Sanghamitra Bandyopadhyay , Saugat Bhattacharyya

The segmentation of brain tumors in multimodal MRIs is one of the most challenging tasks in medical image analysis. The recent state of the art algorithms solving this task is based on machine learning approaches and deep learning in…

Image and Video Processing · Electrical Eng. & Systems 2020-02-11 Dmitrii Lachinov , Elena Shipunova , Vadim Turlapov

As transfer learning techniques are increasingly used to transfer knowledge from the source model to the target task, it becomes important to quantify which source models are suitable for a given target task without performing…

Supervised learning has been very successful for automatic segmentation of images from a single scanner. However, several papers report deteriorated performances when using classifiers trained on images from one scanner to segment images…

Computer Vision and Pattern Recognition · Computer Science 2017-03-16 Veronika Cheplygina , Annegreet van Opbroek , M. Arfan Ikram , Meike W. Vernooij , Marleen de Bruijne

Transfer learning aims to make the most of existing pre-trained models to achieve better performance on a new task in limited data scenarios. However, it is unclear which models will perform best on which task, and it is prohibitively…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Louis Fouquet , Simona Maggio , Léo Dreyfus-Schmidt

Recent advances in machine learning and prevalence of digital medical images have opened up an opportunity to address the challenging brain tumor segmentation (BTS) task by using deep convolutional neural networks. However, different from…

Image and Video Processing · Electrical Eng. & Systems 2022-01-10 Dingwen Zhang , Guohai Huang , Qiang Zhang , Jungong Han , Junwei Han , Yizhou Yu

We develop a novel transfer learning framework to tackle the challenge of limited training data in image reconstruction problems. The proposed framework consists of two training steps, both of which are formed as bi-level optimizations. In…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yunmei Chen , Chi Ding , Xiaojing Ye

Transfer of pre-trained representations can improve sample efficiency and reduce computational requirements for new tasks. However, representations used for transfer are usually generic, and are not tailored to a particular distribution of…

Multi-task learning can leverage information learned by one task to benefit the training of other tasks. Despite this capacity, naive formulations often degrade performance and in particular, identifying the tasks that would benefit from…

Machine Learning · Computer Science 2021-09-13 Christopher Fifty , Ehsan Amid , Zhe Zhao , Tianhe Yu , Rohan Anil , Chelsea Finn

Transfer learning has become a popular method for leveraging pre-trained models in computer vision. However, without performing computationally expensive fine-tuning, it is difficult to quantify which pre-trained source models are suitable…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Michal Pándy , Andrea Agostinelli , Jasper Uijlings , Vittorio Ferrari , Thomas Mensink