摘要
自从Google公布了PageRank的计算公式后,许多网站抓住其缺陷进行作弊,严重影响了排序质量.本文认为PageRank算法中将权威值平均分配给每个链出页面进行计算是其算法的一个致命缺陷.给出了具有针对性的改进算法,将顺向链接网页中不同的网页赋予不同的权重,提升了重要网页的PageRank值,降低不重要网页的PageRank值,从而减弱了作弊行为对网页排名带来的影响.通过与原始PageRank算法和其它相关文献结果的比较,验证了改进的新算法在理论上和实际中都能达到更好的效果.
Since Google announced the PageRank calculation formula, many Website seize its defects cheating, which has seriously affected the quality of the PageRank. This article reveals that PageRank algorithm to leave the authoritative value equally distribute for each page to carry on the computation is an its fatal defect. This paper improved the algorithm, and gave the link Website in the different Website entrusts with the different weight, which promoted the important Website PageRank value, and reduced the unimportant Website the PageRank value, so as to weaken cheating effects on the website rankings. Through the comparison with the primitive PageRank algorithm and other related literature result, it confirmed the improved algorithm can read better results in theory and in practice.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
2008年第4期504-508,共5页
Journal of Central China Normal University：Natural Sciences
基金
国家自然科学基金项目(10571070)
湖北省自然科学基金项目(2007ABA337).
