并介绍了主要的本体结构和查询分解策略的实现情况。
Then a brief introduction on the main structure of Ontology and the achievement of decomposition algorithm is given by this dissertation.
基于分解策略，将船体曲面分段空间调度问题划分为一系列分段排序和分段填空过程。
Hull curved block spatial scheduling problem was divided into a series of block sequencing problems and block packing problems by means of decomposition strategy.
另外还提出一种新的对系数矩阵a分块的列分解策略，该策略基于每块的列相关性估计而得出。
In addition we present a new column partition strategy, based on the estimate of column-dependence of each block, to divide the coefficient matrix a.
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