Global and Local Page Replacement Algorithms on Virtual Memory Systems for Image Processing

Three virtual memory systems for image processing, different one another in frame allocation algorithms and page replacement algorithms, were examined experimentally upon their page-fault characteristics. The hypothesis, that global page replacement algorithms are susceptible to thrashing, held in the raster scan experiment, while it did not in another non raster-scan experiment. The results of the experiments may be useful also in making parallel image processors more efficient, while they are of completely serial basis

Current Situation of Teachers of Informatics at High Schools in Japan

In March 2018, the Japanese Ministry of Education, Culture, Sports, Science and Technology revised the curriculum guidelines for high school, which will be applied in 2022. The subject of Informatics has been drastically changed; ‘Informatics I’ and ‘Informatics II’ have a predominantly scientifc approach. This could be problematic given that a lot of ‘temporary teachers’ and ‘teachers without a proper license’ teach Informatics, and more than half of the teachers that teach Informatics are in charge of multiple subjects. So, it may be diffcult to implement new curriculum in the dozens of prefectures that have few teachers who specialize in Informatics. We report on the problems our investigation revealed

情報科における教科担任の現状

2016年度 情報処理学会関西支部.支部大会 2016年9月26日(月) 大阪大学中之島センタ