Using spam farm to boost PageRank

摘要: Nowadays web spamming has emerged to take the economic advantage of high search rankings and threatened accuracy fairness those rankings. Understanding techniques is essential for evaluating strength weakness a ranking algorithm, fighting against spamming. In this paper, we identify optimal spam farm structure under some realistic assumptions in single target model. Our result extends claimed by Gyongyi Garcia-Molina through dropping assumption that leakage constant. We also characterize farms additional constraints, which spammer may deploy disguise deviating from unconstrained structure.