The Condorcet Jury Theorem justifies the wisdom of crowds and lays the foundations of the ideology of the democratic regime. However, the Jury Theorem and most of its extensions focus on two alternatives and none of them quantitatively evaluate the effect of agents’ strategic behavior on the mechanism’s truth-revealing power. We initiate a research agenda of quantitatively extending the Jury Th...

The growing popularity of websites on which hundreds of “tipsters” provide sporting tips has resulted in a large influx of sports betting advice in the public domain. But how do we know which of these tips are “reliable” and which should not be trusted? How do we spot the wisdom which may be hiding in the crowds? The aim of this project is to investigate to what extent it is possible to extract...

The wisdom of crowds refers to the phenomenon in which the collective knowledge of a community is greater than the knowledge of any individual. This paper proposes a network design for the fastest and slowest consensus formation under average node degree restrictions, which is one aspect of the wisdom of crowds concept. Consensus and synchronization problems are closely related to variety of is...

Groups can make precise collective estimations in cases like the weight of an object or the number of items in a volume. However, in others tasks, for example those requiring memory or mental calculation, subjects often give estimations with large deviations from factual values. Allowing members of the group to communicate their estimations has the additional perverse effect of shifting individ...

The phrase “the wisdom of crowds” suggests that good verdicts can be achieved by averaging the opinions and insights of large, diverse groups of people who possess varied types of information. Online user-generated content enables researchers to view the opinions of large numbers of users publicly. These opinions, in the form of reviews and votes, can be used to automatically generate remarkabl...

Question and answer (Q&A) web sites have become increasing popular in recent years. These communities are social media platforms that enable users around the world to easily share their knowledge with each other. Q&A sites are based in part on the wisdom of crowds [Surowiecki 2005], i.e., everyone involved in the community can contribute something, and through collaborative production they crea...