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Crowdsourcing contest dilemma.

Victor Naroditskiy1, Nicholas R Jennings2, Pascal Van Hentenryck3

  • 1School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK vn@ecs.soton.ac.uk.

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Summary
This summary is machine-generated.

Malicious behavior is common in crowdsourcing competitions, contrary to popular belief. Increasing attack costs can worsen outcomes, highlighting risks in competition design.

Keywords:
Prisoner's Dilemmacrowdsourcinggame theory

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Area of Science:

  • Computer Science
  • Economics
  • Game Theory

Background:

  • Crowdsourcing leverages large groups for efficient task completion.
  • Open entry in crowdsourcing creates vulnerability to malicious actions.
  • Recent competitions have seen significant malicious behavior.

Purpose of the Study:

  • Analyze the trade-off between productivity and malicious behavior in crowdsourcing.
  • Investigate the prevalence and impact of malicious actions.
  • Provide insights for designing more robust crowdsourcing competitions.

Main Methods:

  • Game-theoretic analysis was employed.
  • Examined the fundamental dynamics of crowdsourcing competitions.
  • Modeled the strategic interactions between participants.

Main Results:

  • Malicious behavior is the norm, not the exception, in crowdsourcing competitions.
  • Contrary to intuition, increasing the cost of attacks does not deter them.
  • Higher attack costs can paradoxically lead to worse overall outcomes.

Conclusions:

  • The inherent openness of crowdsourcing facilitates widespread malicious behavior.
  • Current understanding of crowdsourcing competition dynamics is challenged.
  • Findings necessitate a re-evaluation of incentive structures and security measures in crowdsourcing platforms.