Title:
Active Learning: From Linear Classifiers to Overparameterized Neural Networks

dc.contributor.author Nowak, Robert
dc.contributor.corporatename Georgia Institute of Technology. Machine Learning en_US
dc.contributor.corporatename University of Wisconsin-Madison. College of Engineering en_US
dc.date.accessioned 2020-10-13T22:24:49Z
dc.date.available 2020-10-13T22:24:49Z
dc.date.issued 2020-10-07
dc.description Presented online on October 7, 2020 at 12:15 p.m. en_US
dc.description Robert Nowak holds the Nosbusch Professorship in Engineering at the University of Wisconsin-Madison, where his research focuses on signal processing, machine learning, optimization, and statistics. en_US
dc.description Runtime: 70:16 minutes en_US
dc.description.abstract The field of Machine Learning (ML) has advanced considerably in recent years, but mostly in well-defined domains using huge amounts of human-labeled training data. Machines can recognize objects in images and translate text, but they must be trained with more images and text than a person can see in nearly a lifetime. The computational complexity of training has been offset by recent technological advances, but the cost of training data is measured in terms of the human effort in labeling data. People are not getting faster nor cheaper, so generating labeled training datasets has become a major bottleneck in ML pipelines. Active ML aims to address this issue by designing learning algorithms that automatically and adaptively select the most informative examples for labeling so that human time is not wasted labeling irrelevant, redundant, or trivial examples. This talk explores the development of active ML theory and methods over the past decade, including a new approach applicable to kernel methods and neural networks, which views the learning problem through the lens of representer theorems. This perspective highlights the effect that adding a given training example has on the representation. The new approach is shown to possess a variety of desirable mathematical properties that allow active learning algorithms to learn good classifiers from few labeled examples. en_US
dc.format.extent 70:16 minutes
dc.identifier.uri http://hdl.handle.net/1853/63782
dc.language.iso en_US en_US
dc.relation.ispartofseries Machine Learning @ Georgia Tech (ML@GT) Seminar Series
dc.subject Linear algebra en_US
dc.subject Machine learning en_US
dc.title Active Learning: From Linear Classifiers to Overparameterized Neural Networks en_US
dc.type Moving Image
dc.type.genre Lecture
dspace.entity.type Publication
local.contributor.corporatename Machine Learning Center
local.contributor.corporatename College of Computing
local.relation.ispartofseries ML@GT Seminar Series
relation.isOrgUnitOfPublication 46450b94-7ae8-4849-a910-5ae38611c691
relation.isOrgUnitOfPublication c8892b3c-8db6-4b7b-a33a-1b67f7db2021
relation.isSeriesOfPublication 9fb2e77c-08ff-46d7-b903-747cf7406244
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