Ambiguity helps: classification with disagreements in crowdsourced annotations
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Published version
Author(s)
Sharmanska, Viktoriia
Hernandez-Lobato, Daniel
Hernandez-Lobato, Jose Miguel
Quadrianto, Novi
Type
Conference Paper
Abstract
Imagine we show an image to a person and ask her/him to decide whether the scene in the image is warm or not warm, and whether it is easy or not to spot a squirrel in the image. For exactly the same image, the answers to those questions are likely to differ from person to person. This is because the task is inherently ambiguous. Such an ambiguous, therefore challenging, task is pushing the boundary of computer vision in showing what can and can not be learned from visual data. Crowdsourcing has been invaluable for collecting annotations. This is particularly so for a task that goes beyond a clear-cut dichotomy as multiple human judgments per image are needed to reach a consensus. This paper makes conceptual and technical contributions. On the conceptual side, we define disagreements among annotators as privileged information about the data instance. On the technical side, we propose a framework to incorporate annotation disagreements into the classifiers. The proposed framework is simple, relatively fast, and outperforms classifiers that do not take into account the disagreements, especially if tested on high confidence annotations.
Date Issued
2016-12-12
Date Acceptance
2016-06-27
Citation
2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2016, pp.2194-2202
ISSN
1063-6919
Publisher
IEEE
Start Page
2194
End Page
2202
Journal / Book Title
2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Copyright Statement
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Identifier
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7780610
Source
2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Subjects
Computer Science, Artificial Intelligence
Computer Science
Machine Learning
Pattern Recognition, Visual
Publication Status
Published
Start Date
2016-06-27
Finish Date
2016-06-30
Coverage Spatial
Seattle, WA