女童性早熟是女孩在青春前期出现性征发育的异常现象,分真性性早熟与假性性早熟,由于误服避孕药等雌激素类药物引起的性早熟称为外......

在线更新方法是一种有效的大数据分析方法.本文证明了核密度和核回归在线模型的渐近性质,并进行了相应的统计推断.提出了几种算法......

The varying coefficient models are very important tools to explore the hidden structure between the response and its pre......

Counting by weighing is often more efficient than counting manually which is time consuming and prone to human errors,es......