Effect of Slow Switching in On-line Learning for Ensemble Teachers
  We have analyzed the generalization performance of a student which slowly switches ensemble teachers. By calculating the generalization error analytically using statistical mechanics in the framework of on-line learning, we show that the dynamical behaviors of generalization error have the periodicity that is synchronized with the switching period and the behaviors differ with the number of ensemble teachers. Furthermore, we show that the smaller the switching period is, the larger the difference is. 
Seiji Miyoshi, Masato Okada