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Research on instant share locking mechanism inreal-time collaborative plotting system
Author(s): 
Pages: 379-382
Year: Issue:  S1
Journal: Journal of Huazhong University of Science and Technology(Nature Science)

Keyword:  基于网格的协同标绘系统 冲突版本 角色 意愿保护;
Abstract: 针对协同GIS应用中的并发与协同,提出了一种即时锁共享机制.其基本思想是在一定的协同感知基础上,允许产生一定的冲突,然后加以解决.对于共享锁用户并发操作导致的冲突意愿保护,采用了有向二叉树结构存储的并发版本方法.冲突的解析则利用角色和投票相结合的方法.此机制已经在CoGIS中实现,结果证明它可以在保证数据一致性的基础上提高系统的整体性能.
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