面向“百度”搜索引擎优化算法应用规律分析

Analysis about Application Rule on Search Engine Optimization Algorithm:Direction of "Baidu" Search Engine

面向主流搜索引擎"百度",针对搜索引擎的经典排序算法,分析得出影响主流搜索引擎排序可能的相关因素:网页的关键词频率、关键词密度、Alexa排名、外部链接数量、PR值、出站链接数量。使用站长工具收集百度中靠前的网页的可能相关因素的数据,通过筛选过滤后,利用统计图来观察规律,再根据可能的规律使用相应方法进行检验和拟合,通过研究发现在百度靠前的搜索结果中,网页的关键字密度和PageRank具有规律性,这些结果为各类企业规划电子商务网站时,进行搜索引擎优化提供参考依据。

Aiming at classical sort algorithm of search engine,it was obtained the possible relevant factors which influent sequencing of main current search engine ＂Baidu＂,including,keywords frequency,keywords density,Alexa rank,quantities of external links,PR（PageRank） value,quantity of outbound links.At first it was used webmaster tools to collect data finding of possible relevant factors which ranks better in website ＂Baidu＂;next,used cartogram to observe rules after screening;finally,survey and linear fitting according to possible rules.It was find out the regularity on keywords density and PR in the rank front of search result,and some reference basis to implement tactics of Search Engine Optimization are offered in this paper.