A Kind of Hierarchical Search Mechanism in the Resources Grid

Discusses the architecture of the education resources grid.According to the characteristics of the education resources grid,put forward a kind of hierarchical retrieval model of the education resource grid.In the model,definition and function of the nodes of the grid are given in detail,and then introduced the entire process of searching resources,including the inner-domain searching,dynamic update mechanism of inner-domain RN nodes and interdomain searching and retrieval request of the forwarding mechanism of inter-domain.Finally,the collections of search result are combined by using LMS algorithm and XML file.