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cond-mat.dis-nn2000
Replica symmetry breaking in the minority game
Andrea De Martino, Matteo Marsili
We extend and complete recent work concerning the analytic solution of the minority game. Nash equilibria (NE) of the game have been found to be related to the ground states of a d…
cond-mat.stat-mech2000
Data clustering and noise undressing of correlation matrices
M. Marsili
We discuss a new approach to data clustering. We find that maximum likelyhood leads naturally to an Hamiltonian of Potts variables which depends on the correlation matrix and whose…