Baidu: Baidu.com Company was founded by Mr. Li Yanhong and Mr. Xu Yong at the end of 1999 in Silicon Valley, USA. They have many years of successful experience in Silicon Valley. In June 5438 +2000 10, Baidu Company established a wholly-owned subsidiary-Baidu Network Technology (Beijing) Co., Ltd. in China. Baidu's name comes from a western saying that "there are thousands of Baidu's, and many people look for her" and "doing things 99 degrees is doing the first thing". Baidu is trying to achieve 100 degrees and reach the realm of spending on it. Baidu Search uses a high-performance "spider" program to automatically search for information on the Internet. Customizable and highly scalable scheduling algorithms enable searchers to collect the largest amount of Internet information in a very short time. Baidu Search has servers in China and the United States, and its search scope covers 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 more than 60 million pages, and it is still growing at a rate of more than 300,000 pages per day. At present, 36 large websites in China have adopted Baidu engine, including Sina, Sohu, 263, Tom, Yanhuang Online, Chinaren, CCID, Tsinghua University, 2 1CN, Silicon Valley Power, PC-online, Tencent and so on, which shows its influence. Now Baidu sometimes has some advantages over Google in searching Chinese. Update faster.

Basic search

After entering Baidu homepage, there are several basic options in the input box, such as news, webpage, post bar, know, MP3, picture and video. Baidu has two options on the right: Help and Advanced. There are two options at the bottom of the input box: space and more. Click more to try the top line: encyclopedia finance Baidu toolbar map video search movie game channel entertainment and then specific options: 2008 general mobilization new, Baidu security center, Baidu toolbar download now, Baidu game entertainment platform, encyclopedia, blog search ... Baidu search engine is simple and convenient. Just enter the query content and click Enter to get relevant information.

Or after entering the query content, click the "Baidu Click" button with the mouse, and you can also get relevant information. The input query content can be one word, multiple words or one sentence. For example, you can type in [Li Bai], [mp3 download], [suddenly looking back, that person is there, the lights are dim. ] Baidu search engine is rigorous and serious, requiring "word for word". For example, if you search [Shu Qi] and [Shu Kei] respectively, you will get different results. So when searching, you can try different words. Enter multiple words to search. Enter multiple words to search (different words are separated by spaces), and you can get more accurate search results.

For example, if you want to know the information of Beijing temporary residence permit, enter Beijing temporary residence permit in the search box. The search results will be better than those obtained by inputting [Beijing Temporary Residence Permit].

You don't need to use the symbols "and" or "+"when searching Baidu. Baidu will automatically add "+"between multiple words separated by spaces. Baidu provides information that meets all your query conditions, ranking the most relevant web pages at the front. Subtract irrelevant data

Sometimes, excluding materials containing certain words helps to narrow the scope of the query. Baidu supports the "-"function, which is used to delete some irrelevant pages purposefully, but a space must be left before the minus sign. For example, to search for information about "songs" instead of "flower bands", you can use the following query: songs-flower bands.

Related index

If you are not sure what words to enter to find satisfactory information, you can try Baidu related search.

You can enter a simple word search first, and then Baidu search engine will provide you with "related search words searched by other users" for reference. When you click on one of the related search terms, you can get the search results of the related search term.

Advanced search, regional search and personalization

If you are not familiar with Baidu's various query grammars, you can use Baidu's integrated advanced search interface to conduct various search queries conveniently. Baidu also supports searching for web pages in a certain area. Enter the advanced search, enter the regional search, and select the region to query, then you can search in this region. You can also change Baidu's default search settings according to your own habits, such as the number of search results per page and the way search results are opened. Enter the advanced search first, and then click "Click here to enter the personality setting" below, and you can set it.

Pinyin hint

I only know the pronunciation of words, but I don't know how to write them, or I think spelling words is too troublesome. Baidu Pinyin tips can help you solve problems. As long as you enter the pinyin of the query word, Baidu can prompt the corresponding Chinese characters that meet the requirements best. It is actually a very powerful pinyin input method. Pinyin tips are displayed above the search results. For example, if you type "Taohe", you will be prompted as follows: Are you looking for Tao Zhe?

Exact match-double quotation marks and book titles

If the input query words are very long, the query words in the search results given by Baidu analysis may be split. If you are not satisfied with this situation, you can try to make Baidu not split the query words. This effect can be achieved by adding double quotation marks to the query words.

The title of the book is Baidu's unique special query grammar. In other search engines, the title will be ignored, while in Baidu, you can query the Chinese title. Using the query words of the title of a book has two special functions. First, the title of the book will appear in the search results; Second, the content of the title extension will not be split. The title of a book is particularly effective in some cases, for example, to find movies or novels with popular and commonly used names.

Weather query

You can use Baidu to check the weather forecast at any time. There is no need to inquire about the weather any more. Enter the name of the city you want to query in Baidu search box, and add the word weather to get the weather situation of the city on that day.

Stock, train timetable and flight inquiry

Enter the stock code, train number or flight number in Baidu search box, and you can get relevant information directly. You can also make the above query in Baidu's common search.

In addition, there are English-Chinese translation dictionaries, typo tips, calculators and weights and measures conversion, and currency conversion.

The functional characteristics of Baidu search engine

1. Information processing mode based on word combination. It skillfully solves the problem of understanding Chinese information and greatly improves the accuracy and recall rate of search.

2. Support mainstream Chinese coding standards. Including GBK (Chinese character internal code extension specification), GB23 12 (simplified) and BIG5 (traditional), and can be converted between different codes.

3. Intelligent correlation algorithm. Using content-based and hyperlink-based methods to evaluate the relevance can objectively analyze the information contained in web pages, thus ensuring the relevance of search results to the maximum extent.

4. Search results can indicate rich web page attributes (such as title, website address, time, size, code, abstract, etc.). ), and highlight the user's query string, which is convenient for users to judge whether to read the original text.

5. Baidu search supports secondary retrieval (also called progressive retrieval or progressive retrieval). You can continue your search in the last search result and gradually narrow the search scope until you find the smallest and most accurate result set. It is beneficial for users to find the content they are really interested in from the massive information more conveniently.

6. Intelligent recommendation technology of related search words. After the first search, users will be prompted for relevant search words to help them find more relevant results. Statistics show that the search volume can be increased by 10-20%.

7. Using multithreading technology, efficient search algorithm, stable UNIX platform and localized server ensures the fastest response speed. Baidu search engine provides search service in China, which can greatly shorten the response time of retrieval (the average response time of a retrieval is less than 0.5 seconds).

8. Can provide one week, two weeks, four weeks and other services. The website can be updated within 7 days, and it is the Chinese search engine with the fastest updating time and the largest data volume.

9. The output of retrieval results supports content clustering, website clustering, content clustering+website clustering and other ways. Support users to choose the time range, and improve user retrieval efficiency.

10. Intelligent and extensible search technology ensures the fastest and largest collection of Internet information. With the largest Chinese information database in the world, it provides a solid foundation for users to provide the most accurate, extensive and timely information.

1 1. The distributed structure, well-designed optimization algorithm and fault-tolerant design ensure the high availability, high scalability, high performance and high stability of the system under a large number of accesses. Each part adopts the redundant design of N+ 1, and the 1 server is always in standby state. Therefore, the whole system can provide high availability and high stability services in 99.9% of the time.

12. A high degree of configurability enables the search service to meet the needs of different users. It provides configurable means for users in search scheduling, correlation evaluation, content filtering and display mode, which makes the system flexible and adaptable. The ICP site calls the search service by calling the application programming interface (API) of Baidu search engine, and decides how to display the search results and add its own advertisement and company logo.

13. Advanced web page dynamic summary display technology. It can dynamically summarize and display the text at any position in the web page containing the user's query string, which makes it more convenient for users to read and judge the search results.

14. The unique Baidu snapshot skillfully solves the problem of dead links that search users often encounter. Baidu search engine has previewed websites, taken snapshots of webpages and stored a large number of emergency webpages for users. Baidu snapshot is not only extremely fast to download, but also has marked the user's query string with different colors on the webpage.

15. Support a variety of advanced search grammars, making users query more efficiently and the results more accurate. +”(AND), -”(NOT), |”(or), site: and link: have been supported, and other efficient search grammars will continue to be added.

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