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ACTIVE LEARNING WITH LABEL PROPORTIONS

Citation Author(s):
Raul Santos-Rodriguez, Niall Twomey
Submitted by:
Rafael Poyiadzi
Last updated:
1 March 2019 - 1:22pm
Document Type:
Research Manuscript
Document Year:
2019
Event:
Presenters:
Rafael Poyiadzi
Paper Code:
4577

Abstract

Active Learning (AL) refers to the setting where the learner has the ability to perform queries to an oracle to acquire the true label of an instance or, sometimes, a set of instances. Even though Active Learning has been studied extensively, the setting is usually restricted to assume that the oracle is trustworthy and will provide the actual label. We argue that, while common, this approach can be made more flexible to account for different forms of supervision. In this paper, we propose a new framework that allows the algorithm to request the label for a bag of samples at a time. Although this label will come in the form of proportions of class labels in the bags and therefore encode less information, we demonstrate that we can still learn effectively.

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