Robots exclusion protocol robots - PowerPoint PPT Presentation

How to Build a Search Engine

How to Build a Search Engine. 樂倍達數位科技股份有限公司范綱岷（ Kung-Ming Fung ） kmfung@doubleservice.com 2008/04/01. Outline. Introduction Different Kinds of Search Engine Architecture Robot, Spider, Crawler HTML and HTTP Indexing Keyword Search Evaluation Criteria Related Work Discussion

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Spiders, crawlers, harvesters, bots

Spiders, crawlers, harvesters, bots. Thanks to B. Arms R. Mooney P. Baldi P. Frasconi P. Smyth C. Manning. Last time. Evaluation of IR/Search systems Quality of evaluation – Relevance Evaluation is empirical Measurements of Evaluation Precision vs recall F measure

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