*Please distribute to others who may be interested...* You are hereby invited to the next weekly seminar in our interdisciplinary series on Evolution, Complexity and Cognition<http://ecco.vub.ac.be/?q=node/108>(ECCO) and theGlobal Brain Institute<http://www.globalbraininstitute.org/>(GBI).
*Time*:* Friday, November 23rd, *14:00-16:00 p.m *Place*: *Room 3B217 * (building B, level 3, From the elevator take the long corridor to the right, to its end), on the VUB Campus Etterbeek (Pleinlaan 2, 1050 Brussels), Free entrance: everybody welcome! ------------------------------ Scalable cognition and its modeling with chemical organization theory *David R. Weinbaum (Weaver) <http://clea.academia.edu/DavidWeinbaum> (Global Brain Institute, VUB <https://sites.google.com/site/gbialternative1/>)* Abstract: This talk will present work towards modeling scalable cognition using artificial chemistry. The first part of the talk will introduce the idea of scalable cognition as a viable path towards realizing the Global Brain (Weinbaum, 2012). The second part will focus briefly on the basics of chemical organization theory (Dittrich & di Fenizio, 2007; Dittrich, Ziegler, & Banzhaf, 2001; Peter & Dittrich, 2011) and why it is a suitable modeling tool for scalable cognitive agents. The third part will present a preliminary model of scalable cognition. Agents are modeled as chemical reactors situated in an environment, each performing a subset of chemical reactions that is characteristic to their environment. The compounds consumed by a reaction are ‘input signals’. Each reaction selects a unique combination of input signals and thus models selection for relevance. The compounds produced by a reaction are ‘actions’ that can either be exported to the environment or be signals for other reactions within the same agent. A population of agents with diverse sets of reactions interacts in the environment via a market mechanism. Each consumed compound costs to the consuming agent in terms of a resource called ‘fitness’. Each produced compound gains ‘fitness’ to the producing agent (costs can be negative and than the produced compounds are waste). Compounds that are neither produced or consumed but are necessary to some reactions do not cost. The market mechanism dynamically adjusts the prices of various compounds in proportion to scarcity, demand, and supply of the agents. Compounds may also appear or disappear causing agents to change their behavior. Agents whose ‘fitness’ resource falls below a threshold are unable to maintain their inner organization and die. Agents whose ‘fitness’ increases above a given threshold, automatically replicate (with or without variation of their set of reactions). This mechanism ensures that the environment selects the most successful variations of agents at a given market situation. The interactions of the agents through the environment facilitate a process of self-organization that may present complex behaviors. Last but not least, cognitive agents can merge into coalitions if their achieved mutual fitness is greater than the fitness each of them achieves alone. References: Dittrich, P., & di Fenizio, P. S. (2007). Chemical organisation theory.<http://www.springerlink.com/index/B72M02470K53W887.pdf>Bulletin of mathematical biology, 69(4), 1199–1231. Dittrich, P., Ziegler, J., & Banzhaf, W. (2001). Artificial chemistries-a review.<http://www.mitpressjournals.org/doi/abs/10.1162/106454601753238636?prevSearch=authorsfield%3A%28ziegler%29>Artificial life, 7(3), 225–275. Peter, S., & Dittrich, P. (2011). On the relation between organizations and limit sets in chemical reaction systems. Advances in Complex Systems (ACS), 14(01), 77–96. Weinbaum, D. (2012). A Framework for Scalable Cognition: Propagation of challenges, towards the implementation of Global Brain models<http://pespmc1.vub.ac.be/ECCO/ECCO-Papers/Weaver-Attention.pdf>. GBI working paper 2012-02. ------------------------------ * Forthcoming ECCO/GBI seminars* *Winter 2012-2013* *** November 30 * *Juho Salminen <http://lut.academia.edu/JuhoSalminen> *(Lappeenranta University of Technology) SuperCrowdsource Me <http://ecco.vub.ac.be/?q=node/196> * December 7 * *Joël de Rosnay <http://www.derosnay.com>* Internet epigenetics: how to modify the DNA from inside?<http://ecco.vub.ac.be/?q=node/198> * December 14 * *Ben Goertzel <http://wp.goertzel.org/?page_id=58>* General Artificial Intelligence and the Global Brain * December 17 (Monday) * Johan Bollen <http://informatics.indiana.edu/jbollen/Home.html> (Indiana University) Modeling collective mood states from large-scale social media data<http://ecco.vub.ac.be/?q=node/199> More info about the ECCO seminar program: http://ecco.vub.ac.be/?q=node/108 -- David R. Weinbaum (Weaver) ECCO/GBI Seminar Coordinator Email: [email protected] http://clea.academia.edu/DavidWeinbaum
