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What and Who
Title:Discrimination in Algorithmic Decision Making: From Principles to Measures and Mechanisms
Speaker:Bilal Zafar
coming from:Max Planck Institute for Software Systems
Speakers Bio:
Event Type:SWS Student Defense Talks - Thesis Defense
Visibility:SWS
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Level:Public Audience
Language:English
Date, Time and Location
Date:Monday, 4 February 2019
Time:18:00
Duration:60 Minutes
Location:Saarbrücken
Building:E1 5
Room:029
Abstract
The rise of algorithmic decision making in a variety of applications has also raised

concerns about its potential for discrimination against certain social groups. However,

incorporating nondiscrimination goals into the design of algorithmic decision making

systems (or, classifiers) has proven to be quite challenging. These challenges arise mainly

due to the computational complexities involved in the process, and the inadequacy of

existing measures to computationally capture discrimination in various situations. The

goal of this thesis is to tackle these problems.

First, with the aim of incorporating existing measures of discrimination (namely,

disparate treatment and disparate impact) into the design of well-known classifiers, we

introduce a mechanism of decision boundary covariance, that can be included in the

formulation of any convex boundary-based classifier in the form of convex constraints.

Second, we propose alternative measures of discrimination. Our first proposed measure,

disparate mistreatment, is useful in situations when unbiased ground truth training data

is available. The other two measures, preferred treatment and preferred impact, are

useful in situations when feature and class distributions of different social groups are

significantly different, and can additionally help reduce the cost of nondiscrimination

(as compared to the existing measures). We also design mechanisms to incorporate these

new measures into the design of convex boundary-based classifiers.

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To Building:G26To Room:111
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Created:
Maria-Louise Albrecht/MPI-KLSB, 01/17/2019 02:50 PM
Last modified:
Maria-Louise Albrecht/MPI-KLSB, 01/23/2019 02:54 PM
  • Maria-Louise Albrecht, 01/23/2019 02:54 PM
  • Maria-Louise Albrecht, 01/17/2019 02:53 PM -- Created document.