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upward digging是什么意思


中文翻译向上挖掘

网络释义

1)upward digging,向上挖掘2)inverse mining,反向挖掘3)Transverse Mining,横向挖掘4)double mining,双向挖掘5)up boom dredge,上挖式挖掘船6)uprisnig,上向掘进

用法例句

    In spatial association transverse mining,aiming to that presented these mining algorithms based on spatial transaction didn\'t quickly mine spatial cross-layer association,an algorithm of spatial cross-layer association rules mining is proposed,which is suitable for extracting spatial cross-layer association rules in spatial association transverse mining.

    在空间关联横向挖掘中,针对现有基于空间事务的挖掘算法不能快速地挖掘空间跨层关系,提出一种空间跨层关联规则挖掘算法,其适合在空间关联横向挖掘中提取空间跨层关联规则;该算法将空间事务的跨层关系转换为整数,采用自顶向下搜索策略,按非频繁项对应的属性位数递减的方式产生候选频繁项,有效地提高挖掘效率;在提取空间跨层关联规则时,实验证明它是快速的。

    Research of double mining spatial topology association

    空间拓扑关联的双向挖掘研究