closed node

Being multi-element and open is characteristic of Traffic Node space, which requires closed link between nodes.

交通节点空间具有多元和开放的特点.这几个方面原因要求交通节点地区加强空间联系.

Approaches of storing cover quotient cubes in parallel environment and single node are also studied, strategies of choosing hard-ware structure and declustering are provided. ( 2) This dissertation studies some other data cube compression techniques, including closed cube, ice quotient cube and QC-table.

文章还研究了对商覆盖立方体的存储策略，包括选择合适的硬件系统结构、合理的分配策略等。（2）本文还研究了其它一些数据立方体压缩技术，包括封闭立方体、冰山覆盖立方体和QC-table。