Policy decisions on political, economic, legal, and health issues are often made by groups that rarely exceed 40 members and are typically much smaller. Given that wisdom is usually attributed to large crowds, should committees be larger? Using computer simulations and mathematical analyses we show that group accuracy, averaged across the range of difficulty that would be encountered in real-wo...

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Decision-making accuracy typically increases through collective integration of people's judgments into group decisions, a phenomenon known as the wisdom of crowds. For simple perceptual laboratory tasks, classic signal detection theory specifies the upper limit for collective integration benefits obtained by weighted averaging of people's confidences, and simple majority voting can often approx...

With rapid development of the Internet, much attention has been paid to the problem of children exposed to Internet pornography. Existing detection techniques, which mainly focus on pornography content analysis have gained much success. However, they still meet challenges in practical Web environment due to the great computational costs and the difficulties in dealing with various pornography f...

We present a novel approach for enhancing the diversity of a chemical library rooted on the theory of the wisdom of crowds. Our approach was motivated by a desire to tap into the collective experience of our global medicinal chemistry community and involved four basic steps: (1) Candidate compounds for acquisition were screened using various structural and property filters in order to eliminate...

The phenomenon of the ‘wisdom of the crowds’ refers to the finding that the aggregate of a set of proposed solutions from a group of individuals performs better than the majority of individual solutions. We investigated this effect in the context of planar Euclidean traveling salesperson problem (TSP). The goal in TSPs is to estimate the shortest tour through a number of cities, represented as ...

Individuals in groups, whether composed of humans or other animal species, often make important decisions collectively, including avoiding predators, selecting a direction in which to migrate and electing political leaders. Theoretical and empirical work suggests that collective decisions can be more accurate than individual decisions, a phenomenon known as the 'wisdom of crowds'. In these prev...