关键词: 副本放置, 教育资源网格, 访问量, 人工神经网络

Abstract: Grid replication strategy is the key problem of replica mechanism.The forecast of access traffic based education resource grid replication strategy（FATBRS） is presented for education resource grid.Two methods of forecasting accessing traffic are introduced，which are the forecast of access traffic based on historical data（FATTHD） and the forecast of access traffic based on artificial neural networks（FATANN）.FATBRS reduces the access delay efficiently and it is proved through the analysis of experiments.

Key words: replica allocation, education resource grid, access traffic, artificial neural networks