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。(This book introduces the work principle, the realization technology and the system construction scheme of the Internet search engine. The book is divided into three parts including 13 chapters, starting from the basic principle of overview to details of a small simple implementation of the search engine, and then the key points in the design of large-scale distributed search engine system and its key technologies are discussed in detail; the Web information service finally subject oriented and personalized, expounds the Chinese Webpage automatic classification technology and its application. This book is clear in level and from shallow to deep; it has both deep theoretical analysis and a large number of experimental data, which is of both learning and practical significance.)