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    The Doctor Goes to court

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    PasMoQAP: A Parallel Asynchronous Memetic Algorithm for solving the Multi-Objective Quadratic Assignment Problem

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    Multi-Objective Optimization Problems (MOPs) have attracted growing attention during the last decades. Multi-Objective Evolutionary Algorithms (MOEAs) have been extensively used to address MOPs because are able to approximate a set of non-dominated high-quality solutions. The Multi-Objective Quadratic Assignment Problem (mQAP) is a MOP. The mQAP is a generalization of the classical QAP which has been extensively studied, and used in several real-life applications. The mQAP is defined as having as input several flows between the facilities which generate multiple cost functions that must be optimized simultaneously. In this study, we propose PasMoQAP, a parallel asynchronous memetic algorithm to solve the Multi-Objective Quadratic Assignment Problem. PasMoQAP is based on an island model that structures the population by creating sub-populations. The memetic algorithm on each island individually evolve a reduced population of solutions, and they asynchronously cooperate by sending selected solutions to the neighboring islands. The experimental results show that our approach significatively outperforms all the island-based variants of the multi-objective evolutionary algorithm NSGA-II. We show that PasMoQAP is a suitable alternative to solve the Multi-Objective Quadratic Assignment Problem.Comment: 8 pages, 3 figures, 2 tables. Accepted at Conference on Evolutionary Computation 2017 (CEC 2017

    Starting from seed

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    28 p.Flourishing throughout the United States is a loosely knit coalition of activist culture workers striving to counter the homogenized effects of corporate control of culture and mass consumption. ā€œMy houseā€ epitomizes the work of this coalition within the Willamette Valley. With an ā€œout thereā€ and sometimes ā€œin your faceā€ attitude, the culture workers appearing at my house promote an ethic that demands that the arts and culture be free from control by large national and multinational corporations. The multimedia artists, zinesters, and musicians appearing at my house contribute to an environment that is sometimes chaotic, disturbing, uncomfortable, sensual, complex, loud, confrontive, but ultimately an irreverent social critique of life on earth. Gender roles, religion, familial relationships, politics, academic disciplines, the fine arts, class structure, ethnicity, generational differences, economics, and pop culture are among the many issues that are celebrated, skewered, reconstructed, and illuminated on a regular basis in the basement of my house
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