文章回顾了搜索引擎的基本结构和工作原理，涵盖离线系统、在线系统、爬虫策略、内容处理、PageRank算法和倒排索引等关键技术。
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笔者在这篇文章中回顾了搜索引擎的基本结构和工作原理，旨在帮助读者扩展相关知识。搜索引擎的架构可分为离线系统和在线系统，前者负责数据收集、清洗和索引，后者则进行用户交互和搜索结果的返回。爬虫策略的选择至关重要，通常采用广度优先爬取以获取重要网页。在处理网页内容时，笔者强调了结构化内容提取和网页去重的重要性。PageRank 算法被提及作为评估网页质量的经典方法，而倒排索引则是实现高效检索的关键技术。最后，笔者简要描述了搜索模块的工作流程，从用户输入搜索词到结果返回，强调了用户体验的重要性。总的来说，本文为理解搜索引擎的运作提供了一个清晰的框架。
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