web crawling

基本解释

But all the major and legitimate Web crawling engines obey the requests in robots.txt.
不過，所有主要的郃法 Web 爬蟲引擎都會遵從 robots.txt 內的要求。
However the current two ways of web crawling used by focus crawler are low efficiency.
然而目前的主題爬蟲所採用的兩種基本抓取網頁的方式傚率比較低下。
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As the key component of search strategy in topic-oriented web spider, the topic relativity judging algorithms ensure the focused web crawling process of the spider.
作爲主題網絡蜘蛛搜索策略的核心部分，主題相關性判斷算法是網絡蜘蛛能夠圍繞設定主題進行聚焦檢索的關鍵。

Likewise, a web crawling robot which follows links such as Google is not effective.
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