It turns the problem of optimizing across multiple levels of the memory hierarchy to an empirical search to optimization parameter problem, and selects the best overall solution.

论文提出基于经验搜索的多级存储层次优化方法，将优化多级存储层次问题转化为对优化参数的经验搜索问题，并基于遗传算法选择全局最优解。

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However inversion will bring the problems of multiple solutions. Therefore, we established CBM fracturing parameter database. In this way, we solved the multirole-solution of method of inversion.

为此，研制了煤层压裂参数数据库，用以确定分析参数的上下界，从而较好地解决了反演算法的多解性问题。

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