“重要性采样”的概念、定义、翻译、参考文献-科学参考

单词	重要性采样
释义	重要性采样 Encyclopedia 理学蒙特卡罗方法释 importance sampling重要性采样通过选取一个分布函数对其参数取样，用以提高计算精度的方法。理学计算与理论化学释 importance sampling重要性采样在有限的采样次数内，使对最后结果贡献大的采样出现的概率增加，采样的样本点有更多的机会落在感兴趣的区域，使采样点更有效，从而达到减小运算时间的目的。
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