提出一种改进的并发程序依赖图，引入跨线程边界循环-承载数据依赖关系。

An improved threaded program dependence graph was proposed which introduced a new dependence relation of loop-carried data dependence crossing thread boundaries.

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对传统的2 PL协议冲突操作概念加以扩展，本文提出用依赖图方法判断数据仓库实例化视图调度是否可串行化。

Based on the conventional 2pl protocol, we propose our concurrency control theory for data warehouse multiple view to ensure the data consistency of data warehouse.

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在底层它用特征依赖图作为数据模型，在中层用细胞元模型作几何模型，在用户层用视图模型表示。

It USES feature dependent graph as data model, cell-based model as geometric model, and view model as user interface, but it is more complex than the former system based on parameter and history.

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