Abstract: The present technology relates to an information processing system, an information processing method, and a program that make it possible to determine execution of learning, without relying on external instruction inputs. The information processing system determines an action on the basis of environmental information and a learning model obtained through learning based on an evaluation function for evaluating an action.

Abstract: The present disclosure relates to an information processing system, an information processing method, and an information processing device that make it possible to perform learning adaptively to changes in an external environment and circumstances. A learning section learns results of action selection made by a system in response to input information. An input information assessment section assesses a risk of the input information to the system. A first parameter calculation section calculates a first parameter representing stress on the system according to an assessed value of the input information. The learning section changes learning efficiency according to the first parameter. The technology according to the present disclosure is applicable, for example, to an information processing system that performs machine learning.

Abstract: The invention relates to an apparatus for automatically turning the pages of a music book which consists of a music book stand, a number of page turning slats piled one over another and pivoted at the top of the music book stand, each of said slats being adapted to be inserted obliquely between every two pages of the music book, a gear arranged behind said page turning slats and said gear provided with a number of circumferentially arranged slits adapted to be engaged with the upper ends of the slats successively during the rotation of the gear so as to turn over each page. An electric motor for driving said gear is under the musician's control.

Abstract: The invented guitarist's foot-rest comprises a tread-board, a pair of crossed legs to support said tread-board and a pair of parallel height regulating plates attached below said tread-board. Each of said height regulating plates is provided with recesses for receiving the rod connecting the upper ends of the free legs and recesses for receiving single or double wire staples attached adjacent to one or both ends of the connecting rod. A guitarist can adjust the height of the foot-rest merely by turning the connecting rod with one hand while sitting in a chair and holding. Further, it is preferable to provide a spring below the tread-board between the height regulating plates. One end of said spring is attached to one end of the tread-board while the other portion extending along said tread-board to prevent the disengagement of the connecting rod from the corresponding recess.