First full version
First full version

Refs #109 #108 #107

Please all revise the paper. I would like to submit it next week to go on to another paper for PPSN. @fergunet @unintendedbear @mariosky revise English, conclusions, everything...

JJ/modeling-volunteer-computing,JJ/modeling-volunteer-computing,JJ/modeling-volunteer-computing,JJ/modeling-volunteer-computing