随碟附送

\[PR(\mu ) = \sum\limits_{\nu  \in {B_\mu }} {\frac{{PR(\nu )}}{{L(\nu )}}} \]

\[{L(\nu )}\]

\[\mu \]

\[{{B_\mu }}\]

 \[R = \left( {\begin{array}{*{20}{c}}{PageRank({p_1})}\\{PageRank({p_2})}\\ \vdots \\{PageRank({p_N})}\end{array}} \right)\]