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Search engine problem
1, Introduction to Google Search Engine

A)Google search engine was invented by two doctoral students, LarryPage and SergeyBrin, from Stanford in September 1998. Complex automatic search methods can avoid any artificial emotional factors. Different from other search engines, Google's structural design ensures its absolute honesty and fairness, and no one can exchange money for a higher ranking.

B) By sorting out more than 3 billion web pages, Google can provide users around the world with suitable search results, and the search time is usually less than half a second. Now, it needs to provide hundreds of millions of query services every day, accounting for1/3 of global search requests;

C) Covering multiple countries and supporting multiple languages, including simplified Chinese and traditional Chinese. Google comes from the English word "googol". "googol" is a word created by MiltonSirotta, nephew of American mathematician EdwardKasner, which means 1 followed by 100 zeros. Google uses this word to represent its ambition to conquer the endless information on the Internet.

2. What is Google keyword advertising?

Google Keywords Advertising (AdWords) is a text ads based on keyword search. According to the keywords purchased by customers,

Place pure text ads in the blank space on the right side of the relevant search page, with a maximum of 8 such text links per page.

About Baidu

Baidu is a leading Chinese search engine. Every minute, Baidu receives more than 1 100 million Chinese search requests from all countries in the world, the unique "hyperlink analysis" technology in the world, the sub-second speed and the huge server group. By replying to billions of searches every year, tens of millions of netizens share the purest search experience from Baidu and roam the information ocean.

Baidu is the leading software technology provider and platform operator of Internet in China. More than 80% of the major websites providing search engines in China are provided by Baidu. At the end of 1999, Baidu was established in Silicon Valley of the United States, and the founders were Mr. Li Yanhong and Mr. Xu Yong, who had many years of successful experience in Silicon Valley of the United States. In 2000, Baidu returned to China for development. Its name comes from the inspiration of "Thousands of Baidu looking for her", and it has placed its trust in it.

Since Baidu entered the Internet and software market in China, its mission has always been to develop core Internet technologies that truly conform to the habits of China people, and to continuously develop extensible network application software with independent intellectual property rights by relying on its own strength.

Baidu's products and services are designed to meet the basic networking needs of different enterprises and institutions. The main product lines are: 1. Chinese web page retrieval based on global internet. This product line mainly serves portals, and its customers include Sina, Sohu, Tom, 263 Online, 2 1CN, Shanghai Hotline, Guangzhou Windows, etc. Second, enterprise-level information retrieval solutions. Including WebCom series software and Baidu enterprise competitive intelligence system. Among them, WebCom series software includes website retrieval system, industry vertical retrieval system, news monitoring system, enterprise vertical retrieval system, real-time information system and information collection system. At present, these enterprise-level information retrieval solutions are serving various fields, including telecom enterprises, such as Guangdong Telecom and Hebei Telecom. Financial enterprises, such as China People's Bank and China Bank; Media fields, such as CCTV, TVB and Guangming Daily; In the field of education, such as Tsinghua University. In addition, Baidu also uses the information transmission technology (namely website acceleration and network caching technology) provided by the huge CDN network all over the country, and its users include Shenzhen Business Daily, Sichuan News Network and China Basic Education Network.

200 1 10 On the basis of Mr. Li Yanhong's third law and Baidu's huge search user base, Baidu launched a brand-new search engine bidding ranking business model in due course. Bidding ranking refers to a service that users (usually enterprises) pay for their own web pages to rank keywords and pay per click. Through bidding ranking, the order of search results will be sorted from high to low according to the number of bids. At the same time, follow the principle of no click and no charge. At present, websites that have joined the bidding ranking promotion camp include all major portals in China, information ports all over the country and all websites with technical support provided by Baidu. Thousands of home pages of enterprises and individuals from different fields have participated in the bidding ranking.

● About Baidu search engine

Baidu search engine uses a high-performance "web spider" program to automatically search information on the Internet. Customizable and highly extensible scheduling algorithms enable searchers to collect as much Internet information as possible in a short time. Baidu's servers are all over China and the United States, covering Chinese-speaking areas such as Chinese mainland, Hongkong, Taiwan Province, Macau and Singapore, as well as some sites in North America and Europe. Baidu search engine has the largest Chinese information database in the world, with a total of 60 million articles.

Baidu has been committed to developing the search engine that is most suitable for China people's habits. After three years of hard work, Baidu search engine has become the most powerful Chinese search engine in the world.

Core technology: hyperlink analysis

Hyperlink analysis technology is the key technology of a new generation of search engines, which has been widely adopted by major search engines around the world. Robin Li, president of Baidu, is the sole holder of the patent for hyperlink analysis. In academia, the more times a paper is cited, the better its academic value will be. Hyperlink analysis is to evaluate the quality of linked websites by analyzing the number of linked websites, so as to ensure that users rank high in Baidu search.

● Bigger, newer and faster.

Baidu has a natural advantage in Chinese Internet, supporting the search of 65438+30 million Chinese web pages, and is the largest Chinese search engine in the world.

Moreover, Baidu is adding hundreds of thousands of pages every day, and updating important Chinese pages every day. Users can search the latest and most comprehensive Chinese information in the world through Baidu search engine.

Baidu's servers distributed all over the country can directly return the searched information from the nearest server to local users, so that users can enjoy extremely fast search transmission speed.

● Tailored for China users.

Baidu deeply understands the search habits of users in China, and has developed automatic keyword hints: users can get correct Chinese keyword hints by inputting Pinyin.

Baidu has also developed automatic error correction for Chinese search; If the user enters the wrong word by mistake, the correct keyword prompt can be given automatically.

Baidu snapshot is another popular function, which solves the problem that users often encounter dead links when accessing the Internet: Baidu search engine previews websites, takes snapshots of webpages, and stores a large number of emergency webpages for users. Even when users can't link to the required website, Baidu's temporary webpage can help users. Moreover, searching information through Baidu snapshots is often much faster than the conventional way.

Baidu also provides many other considerate functions for ordinary users, including related search, Chinese name recognition, automatic conversion between simplified Chinese and traditional Chinese, and webpage preview.

Baidu has added professional MP3 search, Flash search, news search and information express search, and is rapidly developing other users' favorite search functions. Baidu search engine will develop into the most comprehensive search engine, opening the door to the Internet for all China users.

● Founder of Baidu

Mr. Li Yanhong

Li Yanhong 199 1 Peking University, President of Baidu Network Technology Co., Ltd., graduated from information management and went to new york State University in Buffalo to complete his master's degree in computer science. During his eight years in the United States, Mr. Li Yanhong served as a senior consultant of Dow Jones and a designer of the online real-time financial information system of The Wall Street Journal. He is also a senior engineer of InfoSeek, an internationally renowned Internet company, and an authoritative expert in the field of new generation Internet technology. He first created ESP technology and successfully applied it to the search engine of INFOSEEK/GO. GO.COM image search engine is another technological innovation with great application value. From 1998 to 1996, he first solved the problem of how to perfectly combine the ranking based on web page quality with the ranking based on relevance, and

At the end of 1999, he returned to China with venture capital and founded Baidu Network Technology Co., Ltd. with his friend Xu Yong. Under his leadership, Baidu has been relying on its own strength to provide excellent search engines for the majority of netizens, and launched a brand-new business model-search engine bidding ranking, providing many enterprises with the most advanced online marketing tools in the new era and enterprise-level application software with independent intellectual property rights. At the same time, it provides the most advanced search engine technology services for major portals in China. Baidu maintains a leading position in technology. Personalized services such as mp3 search, photo search and news search have been released successively. In June, 2003, according to the statistics of alexa, the authoritative third-party statistical agency in the United States, Baidu has ranked fourth among the most popular Chinese websites, which indicates that Baidu has entered the top four domestic websites, becoming the most powerful Chinese search engine in the world and the first choice search engine for China netizens. The emergence of Baidu is China.

200 1, Mr. Li Yanhong was selected as "Top Ten Pioneers in China".

200 1, Mr. Li Yanhong donated the teaching assistant program in Tsinghua University. In 2002, Mr. Li Yanhong won the title of "Top Ten IT Man of the Year in China".

In 2003, Mr. Li Yanhong was awarded the title of "Advanced Individual in Prevention and Treatment of SARS in Beijing United Front System".

In 2003, Mr. Li Yanhong won the title of "Outstanding Entrepreneur of the Second Zhongguancun Science Park".

Mr. Xu Yong

Xu Yong, 1982, studying in Biology Department of Peking University. 1989 after completing his master's degree in biology, he was awarded a doctoral scholarship from the Rockefeller Foundation to study in the United States and studied at A &;; M University completed his doctorate and then worked as a postdoctoral fellow at the University of California, Berkeley. During the 10 years in the United States, Xu Yong worked as a senior sales manager in two famous multinational high-tech companies (QIAGEN, Inc and Stratagene) and won outstanding sales awards. 1998, Xu Yong is one of the producers of the large-scale documentary "Into Silicon Valley". It objectively and comprehensively reflects the development process of Silicon Valley, and probes into various factors behind the success of Silicon Valley. In Silicon Valley, he was invited to introduce the venture capital mechanism and entrepreneurial culture of Silicon Valley to senior officials of Chinese mainland government for many times. 1999, Xu Yong co-founded a company with others, and this online e-commerce company made a profit within half a year. He keeps close contact with many business groups in Silicon Valley and provides business consulting services for many emerging high-tech enterprises. 49660.88888888686