Jump to ContentJump to Main Navigation
Evolutionary Games in Natural, Social, and Virtual Worlds$
Users without a subscription are not able to see the full content.

Daniel Friedman and Barry Sinervo

Print publication date: 2016

Print ISBN-13: 9780199981151

Published to Oxford Scholarship Online: August 2016

DOI: 10.1093/acprof:oso/9780199981151.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 21 January 2021

The Blessing and the Curse of the Multiplicative Updates

The Blessing and the Curse of the Multiplicative Updates

(p.265) 10 The Blessing and the Curse of the Multiplicative Updates
Evolutionary Games in Natural, Social, and Virtual Worlds

Daniel Friedman

Barry Sinervo

Oxford University Press

This chapter shows how replicator dynamics (in a setting with no frequency dependence) correspond to multiplicative updates studied by computer scientists in the context of online learning. The updates learn very quickly (a “blessing”) but they also wipe out potentially valuable variety that may be important when the environment changes (the “curse”). The chapter presents several different techniques developed in machine learning to lift the curse, and also different techniques seen in Nature. The chapter asks what machine learning can learn from Nature and vice versa when the recent past may be a treacherous guide to future events, as exemplified in the disk spin-down problem. Highlights include a demonstration of logical connections between Bayesian updating and replicator dynamics, and a discussion of how in-vitro selection techniques relate to computer algorithms that preserve diversity.

Keywords:   replicator dynamics, machine learning, multiplicative updates, relative entropy, in-vitro selection, Bayes“s rule, winnow algorithm, disk spindown problem

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .