Talking about the working principle of keyword in search engine analysis

Search engine turned out, let us more easy to use the Internet, ten years ago, the information explosion is now basically stopped, these are attributed to the search engine, because there are many, there are search engines to help us classify, we want as long as the input of relevant keywords can find the corresponding information, There will be no such information explosion of the state, find a message will be tortured by a person half to death! Visible search engine contribution and the role is how huge!

We usually find information through the input data to get, that is, we often say that the keyword, search engine for the input of keywords is how to work, is directly through the word to find, or to separate these words, related to the comparison and then from the database to find, and then based on this word to rank, A lot of people on the principle of this work is not very clear, the author because in the SEO optimization industry for many years, for search engine segmentation principle also has a certain understanding, the following will be my understanding to write down to discuss with you!

One: The first is participle, this is the search engine to do the work, because we enter the word in the search box is sometimes a phrase, sometimes is a complete sentence, rarely use the phrase to direct search, so the search engine in the formal work to the input of the phrase or sentence segmentation, Then these strings into a combination of phrases, can not be divided, and then in the database through the preprocessing query and alignment, the data to meet these words returned to the user, this participle in fact and page segmentation is not much worse!

Two: Remove the stop word, the so-called stop words are some meaningless words, such as some Ah, oh, and so on mood words, these words will often be in search when the search box is entered, when the search engine in the formal and database than the time will put these meaningless stop word cancellation and ensure the accuracy of the search!

Third: How to deal with instructions, search engines to deal with the command type, will be a lot of the default phrase into a phrase to search, so that you can maintain a high accuracy, such as you in the search box to enter XX weight loss xx site, at this time is actually executed orders are weight loss site, And not all xx weight loss XX site return results, but often return some of the individual words of the content, such as individual weight loss content and so on! In addition to the implementation of the instructions also have to coarse a variety of advanced search commands, such as specific identifiers, such as the addition of a minus sign and so on!

Four: The correction of the input word, because many Chinese characters have homophonic, sometimes write phrases are also prone to typos, this time the search engine is often able to return the correct results, this is because the search engine in the process of participle, will be some typos to rectify over, And after the return of the results of the page there will be corrected the correct phrase out! Figure:

　　

Five: Classification, different words will be treated differently, this is a unique function of the search engine, if you search the general keywords, then return the result is the General page, and if you are searching for news hot word or star keyword often return is the relevant news source, So the search engine in this respect the intelligence is quite high!

The above is the author of the search engine on the principle of the keywords from five aspects of the simple introduction, although the principle of our website does not have a direct relationship, but in the optimization of the site still has a great help to, after all, related to the analysis and choice of keywords, So the realization of this principle for our personal webmaster are also very necessary! Source: www.che2.com Second-hand Car market original, reprint please explain!