是对网络爬虫Heritrix的介绍 ，Heritrix是一个由java开发的 开源的web网络爬虫 -Is an introduction to Heritrix Web crawler, Heritrix is an open-source web development java web crawler

讲述概念格算法和本体算法，用于过滤URLs，指导爬虫进行搜索。-A concept lattice algorithm and ontology algorithm are used to filter the URLs and guide the crawler to search.

Migrating Parallel Web Crawler used for information retrival a review and complete thesis work-Migrating Parallel Web Crawler used for information retrival a review and complete thesis work