The weighted p-Laplacian and semi-supervised learning

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• Jeff Calder (University of Minnesota)
• Friday 03 November 2017, 14:50-15:40
• Seminar Room 1, Newton Institute.

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VMVW02 - Generative models, parameter learning and sparsity

Semi-supervised learning refers to machine learning algorithms that make use of both labeled data and unlabeled data for learning tasks. Examples include large scale nonparametric regression and classification problems, such as predicting voting preferences of social media users, or classifying medical images. In today's big data world, there is an abundance of unlabeled data, while labeled data often requires expert labeling and is expensive to obtain. This has led to a resurgence of semi-supervised learning techniques, which use the topological or geometric properties of large amounts of unlabeled data to aid the learning task. In this talk, I will discuss some new rigorous PDE scaling limits for existing semisupervised learning algorithms and their practical implications. I will also discuss how these scaling limits suggest new ideas for fast algorithms for semi-supervised learning. 

This talk is part of the Isaac Newton Institute Seminar Series series.

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