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Evolved Developmental Strategies of Artificial Multicellular Organisms

Disset, Jean and Cussat-Blanc, Sylvain and Duthen, Yves Evolved Developmental Strategies of Artificial Multicellular Organisms. (2016) In: 15th International Symposium on the Synthesis and Simulation of Living Systems (ALIFE XV 2016), 4 July 2016 - 8 July 2016 (Cancun, Mexico).

(Document in English)

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We present the use of a new computationaly efficient 3D physics model for the simulation of cells in a virtual aquatic world. In this model, cells can freely assemble and disconnect along the simulation without any separation between the development and evaluation stages, as is the case in most evo-devo models which only consider one cell cluster. While allowing for the discovery of interesting behaviors through the addition of new degrees of freedom, this 3D center-based physics engine and its associated virtual world also come with their drawbacks when applied to evolutionnary experiments: larger search space and numerous local optima. In this paper, we have designed an experiment in which cells must learn to survive by keeping their genome alive as long as possible in a demanding world. No morphology or strategy is explicitly enforced; the only objective the cells have to optimize is the survival time of the organism they build. We show that a novelty metric, adapted to our evo-devo matter, dramatically improves the outcome of the evolutionary runs. This paper also details some of the developmental strategies the evolved multicellular organisms have found in order to survive.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to the Mit Press editor. This papers appears in Proceedings of the Artificial Life Conference 2016 ISBN : 978-0262339360 https://mitpress.mit.edu/books/proceedings-artificial-life-conference-2016
HAL Id:hal-01511892
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
Deposited On:22 Mar 2017 09:06

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