The chaotic Boltzmann machine proposed in this paper is a chaotic pseudo-billiard system that works as a Boltzmann machine. Chaotic Boltzmann machines are shown numerically to have computing abilities comparable to conventional (stochastic) Boltzmann machines. Since no randomness is required, efficient hardware implementation is expected. Moreover, the ferromagnetic phase transition of the Isin...

Pro-cyclical aggregate R&D has been taken as evidence against the conventional Schumpeterian view on the optimal timing of innovation. We decompose aggregate R&D and real GDP in the U.S. into those by 22 industry groups. Surprisingly, we find only 5.67% of pro-cyclical aggregate R&D reflects withinindustry timing of innovation and production, but 94.37% arises from interindustry co-movement bet...

1 Faculté des Sciences Technique de Mohammedia (FSTM), B.P. 146 Mohammedia, Maroc. 2 Agence Nationale de Réglementation des Télécommunications (ANRT), Complexe d’Affaires aile sud Ar-ryad, Hay riad 10100, BP 2939 Rabat Maroc 3 Laboratoire PRiSM, Universite de Versailles,45 avenue des Etats-Unis,78035 Versailles Cedex France. E-mail:{[email protected];[email protected], Karine.Zeitouni...

Samuel George Morton (1799-1851) was the most highly regarded American scientist of the early and middle 19th century. Thanks largely to Stephen Jay Gould's book The Mismeasure of Man, Morton's cranial capacity measurements of different races is now held up as a prime example of and cautionary tale against scientific racism. A team of anthropologists recently reevaluated Morton's work and argue...

The authors of this study take the scientific position that of the major technologies of the future will be companion systems. This study examines which emotions and dispositions are relevant in this regard. It assesses which emotions and dispositions in the experienced scenarios of man-machine interactions are retroactively reflected in comparison with man-man interaction. The sample consisted...