...簇的数目；大部分基于网格的聚类算法都使用了两 个关键参数：网格粒度（grid granularity）参数6和密度阈值（density threshold）参数 MinPts。一般的聚类算法对输入参数通常十分敏感，而且参数通常很难确定。
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flux-density threshold 通量密度低限
flux density threshold [光] 光通量密度阈值 ; 阈照度
power density threshold 功率密度阈值
energy density threshold 能量密度阈值
density threshold descending 密度阈值递减
power density threshold value 功率密度
laser power density threshold 激光功率密度阈值
laser energy density threshold 激光能量密度阈值
Using an optimum density threshold and corresponding grid granularity can be ascertained with a set of given density thresholds.
在给定一组密度阈值的条件下，利用该方法可以确定一个最佳的密度阈值及相应的网格粒度。
参考来源 - 空间数据聚类中的网格粒度求解方法·2,447,543篇论文数据，部分数据来源于NoteExpress
Then the Contribution is the grid density and dispose of density threshold of grid by the method of density threshold.
然后将“贡献度”作为网格单元密度，使用密度阈值函数来定义网格的密度阈值进行聚类。
Putting the reactants in uniform electric field, we reduced the laser power density threshold needed by said reaction by a factor of two.
把反应物置于均匀外电场中，可以使引发化学反应时所需的激光功率密度阀值降低一倍。
The influences of the filler metal powder on the laser power density threshold value, weld formation and process stability were studied during CO_2 laser welding of aluminum alloy.
研究了填充合金粉对CO_2激光焊接功率阈值、焊缝成形和焊接过程稳定性的影响。
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