cost share	projects share	popularity share
${\displaystyle S_{o,c,l}^{i,f}=\frac{\sum _{p=1}^{|W_{l,f}|}{c}_p}{\sum _{p=1}^{|W_f|}{c}_p}}$	${\displaystyle S_{o,n,l}^{i,f}=\frac{|W_{l,f}|}{|W_f|}}$	${\displaystyle S_{o,v,l}^{i,f}=\frac{\sum _{p=1}^{|W_{l,f}|}{v}_p}{\sum _{p=1}^{|W_f|}{v}_p}}$