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Why we organize this tutorial:

Deep neural networks require a large amount of training data to generalize well. Unfortunately, large labeled datasets are difficult to obtain in the medical domain due to many reasons, including the privacy concern and sometimes the rare nature of the diseases.  This limitation has motivated the development of various transfer learning, domain adaptation, and domain generalization techniques to increase deep networks' data efficiency. However, these techniques assume the availability of data from all domains during the training phase. Moreover, they often require time-consuming offline model re-training, which leads to delays and disruption of clinical workflows.

Meta-learning, or learning to learn, has emerged as a promising paradigm to address data heterogeneity and scarcity in medical applications. It starts with the assumption that test data distribution is unseen and different from the training data. In contrast to learning a model from scratch (supervised learning) or transferring features (domain adaptation), meta-learning leverages knowledge from multiple tasks to improve the learning mechanism. Once learned, a meta-learning model can adjust itself to a new data distribution rapidly using only a few labeled examples. This technology's high computational and data efficiency potentially increases the accuracy, development speed, and deployment efficiency of computer-aided diagnosis systems.

While promising, meta-learning has been largely under-investigated in the MICCAI community. This tutorial aims to bridge the gap by providing a comprehensive introduction to meta-learning, including theories, applications, and future directions. The tutorial will invite leading researchers in meta-learning and medical imaging to present its state-of-the-art and explain how the techniques apply to medical image detection, classification, and segmentation tasks. Meta-learning workshops were held every year at Neural Information Processing Systems (NeurIPS) conference from 2018 to 2020 and attracted large audiences. We expect our tutorial to bring this exciting and important research direction to MICCAI and attract a similar number of attendants. 


List of Objectives:

The tutorial is designed for machine learning researchers, biomedical engineers, medical practitioners, and graduate students who wish to learn the basics of Meta-Learning, state-of-the-art methods, and how to apply them to medical imaging applications. Specifically, the tutorial will help the audience achieve the following goals: 

  • Gain general knowledge about meta-learning technology

  • Understand basic mathematical formulation of meta-learning

  • Become familiar with the state of the art meta-learning techniques

  • Know the current limitations and future directions of the field

Date and Time: 09/27/2021, starting at 09:00:00 UTC 

What will be covered:
The tutorial will last 8 hours, consisting of lectures, three keynote talks, invited talks on selected topics, and short coffee breaks. The structure is tentative as follows and will be subject to changes depending on real situations: 

  1. Opening remarks 

  2. Introduction to Meta-Learning [09:00:00 UTC, Hien Nguyen] 

  3. Contemporary Meta-Learning Algorithms (Part 1) [10:00:00 UTC, Hien Nguyen]

  4. Contemporary Meta-Learning Algorithms (Part 2) [11:00:00 UTC, Swami Sankaranarayanan]

  5. Bayesian Meta-Learning [12:00:00 UTC, Pengyu Yuan]

  6. Keynote speaker [14:00:00 UTC, Gustavo Carneiro]

    • Supervised and Unsupervised Task Design to Meta-Train Medical Image Classifiers 

  7. Keynote speaker [15:00:00 UTC, Azade Farshad & Nassir Navab]

    • Meta-learning for Medical Image Segmentation: Advances & Challenges

  8. Few-shot Chest X-ray Diagnosis Using Discriminative Ensemble Learning [16:00:00 UTC, Angshuman Paul]

  9. Active Bayesian Meta-Learning for Brain Cell Classification [16:30:00 UTC, Pengyu Yuan]

  10. ​Meta-learning for Incidental Lung Nodule Classification [17:00:00 UTC, Hien Nguyen] 

  11. Closing remarks [17:30:00 UTC, Hien Nguyen]


About Organizers

  • Dr. Rama Chellappa Bloomberg Distinguished Professor in the Departments of Electrical and Computer Engineering and Biomedical Engineering at Johns Hopkins University (JHU). He is an expert in computer vision and machine learning with over 400 papers, 70,000 citations, and numerous awards. 

  • Dr. Ronald Summers is Senior Investigator, Chief of the Clinical Image Processing Service, National Institutes of Health. He has co-authored over 300 journal, review, and conference proceedings articles, and is a co-inventor on 12 patents. He is known for multi-organ multi-atlas registration and the development of large radiologic image databases including ChestX-Ray and DeepLesion databases.

  • Dr. Nassir Navab is a Professor and Chair of Computer Aided Medical Procedures & Augmented Reality, Department of Informatics at the Technical University of Munich. He is the author of hundreds of peer-reviewed scientific papers with more than 37000  citations. He is the author of more than thirty awarded papers including 10 at MICCAI and three at IEEE ISMAR.

  • Dr. Gustavo Carneiro is a Professor of the School of Computer Science at the University of Adelaide, ARC Future Fellow, and the Director of Medical Machine Learning at the Australian Institute of Machine Learning. He is an expert in computer vision, medical image analysis, and machine learning with over 150 published papers and 7,000 citations.

  • Dr. Hien Van Nguyen is an Assistant Professor of the Department of Electrical and Computer Engineering Department at the University of Houston. He has published 45 peer-reviewed papers and received 12 U.S. patents. He has successfully organized several MICCAI tutorials including deep learning for medical imaging (2015), deep reinforcement learning for medical imaging (2018), Bayesian deep learning (2019). 

  • Dr. Vishal M. Patel is an Assistant Professor in the Department of Electrical and Computer Engineering at Johns Hopkins University. He received the 2016 ONR Young Investigator Award, 7 paper awards, and 12000 citations. He is an Associate Editor of the IEEE Signal Processing Magazine, IEEE Biometrics Compendium.

  • Dr. Swami Sankaranarayanan Dr. Swami Sankaranarayanan is a Postdoc at CSAIL, MIT working with Dr. Phillip Isola and Dr. Antonio Torralba. He obtained his Ph.D. at the University of Maryland, College Park, for which he awarded a department-wide best dissertation award. Before joining MIT, he worked as a Research Scientist at Butterfly Network, a leading healthcare company, where he was instrumental is launching products such as Auto Bladder Volume (ABV) which is used currently across 25+ countries. 

  • Pengyu Yuan is a Ph.D. student at the University of Houston

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