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2013 | OriginalPaper | Buchkapitel

The Wisdom of Crowds: Methods of Human Judgement Aggregation

verfasst von : Aidan Lyon, Eric Pacuit

Erschienen in: Handbook of Human Computation

Verlag: Springer New York

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Abstract

Although the idea is an old one, there has been a recent boom in research into the Wisdom of Crowds, and this appears to be at least partly due to the now widespread availability of the Internet, and the advent of social media and Web 2.0 applications. In this paper, we start by laying out a simple conceptual framework for thinking about the Wisdom of the Crowds. We identify six core aspects that are part of any instance of the Wisdom of the Crowds. One of these aspects, called aggregation, is the main focus of this paper. An aggregation method is the method of bringing the many contributions of a crowd together into a collective output. We discuss three different types of aggregation methods: mathematical aggregation, group deliberation and prediction markets.

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Fußnoten
1
We say “so-called”, because examples of the Wisdom of Crowds often have little to do with the notion of wisdom that philosophers care about (see Andler (2012) for further discussion), and they often involve only a group of people—even just a handful—and not a crowd in the usual sense of the word. Nevertheless, we will stick with the words that seem to have stuck.
 
2
Psychologists have found that even just single person can function as a crowd of individuals (see e.g., Vul and Pashler 2008; Herzog and Hertwig 2009; Hourihan and Benjamin 2010).
 
3
For example, it should rain on 90 % of the days that your crowd says there is a 90 % chance of rain.
 
4
This is because N and N → G entail G, so if the former two propositions are true, the latter has to be true.
 
5
As we noted in section “Thinking About the Wisdom of Crowds”, not all deliberation groups are instances of judgement aggregation. For example, the crowd could simply meet to share information and then still give different individual judgements, which could then be aggregated using one of the methods described in sections “Thinking About the Wisdom of Crowds” or “Prediction Markets”.
 
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Metadaten
Titel
The Wisdom of Crowds: Methods of Human Judgement Aggregation
verfasst von
Aidan Lyon
Eric Pacuit
Copyright-Jahr
2013
Verlag
Springer New York
DOI
https://doi.org/10.1007/978-1-4614-8806-4_47

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