本书比较系统地介绍了互联网搜索引擎的工作原理、实现技术及其系统构建方案。全书分三篇共13章内容，从基本工作原理概述开始，到一个小型简单搜索引擎实现的具体细节，进而详细讨论了大规模分布式搜索引擎系统的设计要点及其关键技术；最后面向主题和个性化的Web信息服务，阐述了中文网页自动分类等技术及其应用。本书层次分明，由浅入深；既有深入的理论分析，也有大量的实验数据，具有学习和实用双重意义。-The book systematically introduce the Internet search engine s working principle, the realization of technology and its system builder program. Encyclopedia sub-3 content of 13 chapters, from the basic principle outlined in the beginning, to a small simple search engine to achieve the specific details, which are discussed in detail the large-scale distributed search engine system design features and key technologies　Finally subject-oriented and personalized Web information service, on Chinese Web Page Automatic Classification, such as technology and its applications. Book structured, easy-to-digest　both depth theoretical analysis, there are a large number of experimental data, with the double meaning of learning and practical.