Classroom support and system administration support for large‐scale educational computer system

Abstract

SUMMARYUniversity and other educational computer systems may have several thousands to several tens of thousands of users, and several hundreds to several thousands of terminals. When the scale of the system is enlarged, not only is the burden of management increased, but various problems are produced in the system configuration and administration due to the character of the educational system, in which many identical manipulations are performed at the same time. This study was performed in the educational computer system of the Osaka University Information Processing Education Center (now the Cybermedia Center). Through the design and development of a system to support smooth administration of the computer system and classroom activities in the center, the functions needed for support were organized and practical problems were identified, together with methods for their solution. The new system was operated at the Osaka University Information Processing Education Center and was found to contribute greatly to classroom and administration support.

A Method to Detect Concentration of Students for E-learning Using Kinect

“…Let DC(i) denote the degree of concentration of item i (i=Cp, Cy, Ce, and Ca), and FC denote the final degree of concentration. When 10 seconds elapsed, the degree of concentration of each item is calculated by (1), and the final degree of concentration is clculated by (2). DC For example, when the value of Pitch is 7, the value of Yaw is 7, the value of Engaged is 8, and the value of both eyes is 6, then the degrees of concentration DC(Cp), DC(Cy), DC(Ce), and DC(Ca) are 70%, 70%, 80%, 60%, respectively.…”

“…E-learning systems have been popular these days. They utilize personal computers and the Internet, and with them students study on his/her own initiative (1,2) . Also, elearning systems are used at many educational sites such as schools and universities.…”

Improvement of Detection for Warning Students in E-learning Using Web Cameras

“…Let C p and k p denote the concentration rate of portion p and the number of frames including detected portion p during 10 seconds, respectively. Then, C p is calculated as follows: 10 p p k C (1) The integrated concentration C is calculated as follows: In (2), N is the number of portions and the move used for detection. When C is smaller than a threshold determined beforehand, the system displays a message with sound to warn the student.…”

“…E-learning systems utilizing computers and the Internet have been widely used 1,2 . There are various good points in using e-learning systems.…”

Detecting Concentration of Students Using Kinect in E-learning

“…In recent years, along with the spread of personal computers and the Internet, e-learning systems, with which students study on his/her own initiative, have become widespread (1,2) . Actually, e-learning systems are used at many educational sites such as universities and enterprises.…”