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The dynamics of casual groups can keep free-riders at bay
Understanding the conditions for maintaining cooperation in groups of unrelated individuals despite the presence of non-cooperative members is a major research topic in contemporary biological, sociological, and economic theory.
Evolving division of labor in a response threshold model
The response threshold model explains the emergence of division of labor (i. e., task specialization) in an unstructured population by assuming that the individuals have different propensities to work on different tasks.
Local adaptation, phenotypic plasticity, and species coexistence
Understanding the mechanisms of species coexistence has always been a fundamental topic in ecology.
The surprising little effectiveness of cooperative algorithms in parallel problem solving
The tradeoff is that for rugged landscapes the imitative learning search is more prone to be trapped in local maxima than the evolutionary algorithms.
Awareness improves problem-solving performance
We find that a weak feedback between the monitor and the operative agents improves the performance of the system, regardless of the difficulty of the problem, which is gauged by the number of local maxima in the landscape.
