Introduction to publication 1 preface 2 preface chapter 1 text and language vs numbers and information chapter 2 natural language processing-from rules to statistics chapter 3 statistical language model chapter 4 on Chinese word segmentation chapter 5 hidden Markov module chapter 6 information measurement and function chapter 7 Jarinik and modern language processing chapter 8 simple beauty-Boolean algebra index and search engine chapter 9 graph theory and web crawler chapter/ Chapter kloc-0/0 PageRank-Google's democratic voting page ranking technology Chapter 1 1 How to determine the relevance between web pages and queries Chapter 12 map and the most basic technology of local search-finite state machine and dynamic programming Chapter 13. Dr amit Singer, the designer of Google AK-47, Chapter 14 Cosine Theorem and News Classification Chapter 15 Two Classification Problems in Matrix Operation and Text Processing Chapter 16 Information Fingerprint and Its Application Chapter 17 Thought of by TV series Assassination-On the Mathematical Principles of Cryptography Chapter 1 Chapter 8 All that glitters is not gold-Talk about anti-cheating in search engines Chapter 19 Talk about the importance of mathematical models Chapter 265438 Mathematical Principles of Pinyin Input Method Chapter 22 Natural Language Processing Godfather Marcus and his excellent disciples Chapter 23 Bloom Filter Chapter 24 Kyle. Extension of Markov Chain-Bayesian Network Chapter 25 Conditional Random Fields and Syntactic Analysis Chapter 26 Viterbi and his Viterbi Algorithm Chapter 27 Talking about Automatic Text Classification-Expectation Maximization Algorithm Chapter 28 Logical Regression and Search Advertising Chapter 29 Divide and conquer algorithm and the basic appendix Postscript index of Google Cloud Computing.