[ABE-L] Seminários de Probabilidade e Sistemas Complexos, ICMC-USP & UFSCar, Sexta 20/03, 16h00

[Pablo Martin Rodriguez]

Prezados colegas e alunos, 

Esta mensagem é para divulgar a palestra desta semana do ciclo de Seminários de Probabilidade e Sistemas Complexos, ICMC-USP & UFSCar, São Carlos. Segue a informação. 
Imitative Learning as a Connector of Collective Brains 
Speaker: Jose Fernando Fontanari (IFSC-USP) 

Date: 20/03/2015 
Time: 16h00 
Room: Auditorio Fávaro do ICMC (4-111) 

Abstract: The notion that cooperation can aid a group of agents to solve problems more efficiently than if those agents worked in isolation is prevalent in computer science and business circles. Here we consider a primordial form of cooperation - imitative learning - that allows an effective exchange of information between agents, which are viewed as the processing units of a social intelligence system or collective brain. In particular, we use agent-based simulations to study the performance of a group of agents in solving a cryptarithmetic problem. An agent can either perform local random moves to explore the solution space of the problem or imitate a model agent - the best performing agent in its influence network. There is a trade-off between the number of agents N and the imitation probability p, and for the optimal balance between these parameters we observe a thirtyfold diminution in the computational cost to find the solution of the cryptarithmetic problem as compared with the independent search. If those parameters are chosen far from the optimal setting, however, then imitative learning can impair greatly the performance of the group. 
Uma lista atualizada dos seminários do ano será mantida no site http://www.icmc.usp.br/pessoas/pablor/seminar.html 

Estão todos convidados! Favor divulgar a possíveis interessados. 

Um abraço, 

Pablo Martín Rodríguez 

Professor Doutor (MS-3) 
Department of Applied Mathematics and Statistics, ICMC-USP 
C.P. 668 - São Carlos, SP, Brazil - CEP 13560-970 
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