We introduce Division of Labor (DoL) from social insects to improve local optimisation of the Particle Swarm Optimiser (PSO). We compared the performance with the basic PSO, a GA and simulated annealing and found improvements around local optima. The PSO with DoL outperforms the basic PSO on most testcases and is comparable in local op-

Douglas McDonald: There are three basic ways that criminal justice agencies and drug treatment programs can interact: (1) justice agency employees conduct screening and assessment and refer patients to independ­ ent organizations for treatment; (2) a jus­ tice agency contracts with a treatment organ­ ization to screen, assess, place, and treat patients; and (3) a justice agency engages an inter...

Although evident progress and considerable achievements have been attained in developing a new particle swarm optimization (PSO) algorithm, successfully balancing the exploration and exploitation capabilities of PSO to determine high-quality solutions for complex optimization problems remains a fundamental challenge. In this study, we propose a new PSO variant, namely, adaptive division of labo...

Q-learning as well as other learning paradigms depend strongly on the representation of the underlying state space. As a special case of the hidden state problem we investigate the e ect of a self-organizing discretization of the state space in a simple control problem. We apply the neural gas algorithm with adaptation of learning rate and neighborhood range to a simulated cart-pole problem. Th...

Dendritic cells induce the activation of CD8 and CD4 T cells by presenting antigenic peptides on MHC class I and class II molecules, respectively. In a recent Science paper, Dudziak et al. (2007) reveal that these tasks are handled by distinct populations of dendritic cells in vivo.

In this paper, we model the co-evolution of the division of labor and informal institutions based on three assumptions. First, informal institutions lower coordination costs among specialists, which increases the equilibrium division of labor. Second, advances in the division of labor increase the size of interpersonal trading groups and thereby undermine the game theoretic basis of informal in...

A customary gender division of labor is one in which women and men are directed towards certain tasks and/or explicitly prohibited from performing others. We offer an explanation as to why the gender division of labor is so often enforced by custom, and why customary gender divisions of labor generally involve both direction and prohibition. Our model builds on the literature on the marital hol...