Level l indicators

Secondary indicators

Weight

Standardized method

Reading index (80%)

Average daily reading (R/d)

40%

ln(R/d + 1)

Average number of readings (R/n)

45%

ln(R/n + 1)

Maximum number of readings (Rmax)

15%

ln(Rmax + 1)

Thumbs-up index (20%)

Average thumb up number per day (Z/d)

40%

ln(10 * Z/d + 1)

Post-average thumbs-up number (Z/n)

45%

ln(10 * Z/n + 1)

Highest number of likes (Zmax)

15%

ln(10 * Zmax + 1)

$\begin{array}{c}\text{WCI}=\{80\text{\%}\times (40\text{\%}\times \text{ln}\left(\text{R}/\text{d}+1\right)+45\text{\%}\times \text{ln}\left(\text{R}/\text{d}+1\right)\\ +15\%\times \text{ln}\left(\text{Rmax}+1\right))+20\%\times (40\%\times \text{ln}\left(10\times \text{Z}/\text{d}+1\right)\\ +40\%\times \text{ln}\left(10\times \text{Z}/\text{n}+1\right)+{15\text{\%}\times \text{ln}\left(10\times \text{Zmax}+1\right))\}}^2\times 10\end{array}$