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How Does a Search Robot Work?
Search robot, make up an index, and passes Sites "circles", visiting them regularly - thus, the index accurately reflects the changes that have occurred on the site. New Sites "spider" finds himself or came via a link from another site, or find out about them from the author's site - in the search engines it is possible to "incite" "spider" to your site.Well, the last part of the search engine - is its WWW-server. It is her face, this is the interface through which the user asks questions and receives answers to them. WWW-server - this is only one part of a search engine, not the biggest. So it is not so simple as it seems.
To "communicate" with the search engines, there are special rules and special language. Of course, it would be nice if one could just take and ask: "Where can I find the full text of" The Devil's Dictionary "Ambrose Bierce?" - And get a full and comprehensive answer. In principle, work in this direction are being - take, for instance, gourmet site «Ask Jeeves» - ask a question in the "literary" form - only in English, of course - you can get a pretty clear answer. In the remaining search engines will have to learn a fairly simple query language.
First you need to isolate key words: decide what two or three words more fully characterize the object of your searches, and introduce them to it. "It's so obvious" - you might say. You are right. However, you may be surprised to learn that many people enter to search. On "Yandex" is a wonderful thing called a "live broadcast", the page where you can see the last 20 queries. On this page you can watch for hours, feeling with many conflicting feelings. You can even write more than one avant-garde novel, just writing down all requests in a row. Some of the requests are staggering, and sinks into the soul.
It is encouraging, but the fact: of the 20 requests in the best case, five - on mezhpolovyh relations. Check for yourself. But if we do not take into consideration the requests, such as "free porn", then we have an excellent opportunity to sample the remaining requests to consider how the search should not be.
Typically, a large percentage of queries differs completely unclear, and obscure: "music", "video", "Furnace», «mp3». Kind of like "I asked, and you be so kind, guess what I had in mind. Thus, the query "music" Yandex issued 143,791 options. It is necessary to clarify what you are looking for. Request the "country music" already provides 4443 links, and "country music + Novosibirsk" - has only 49.
There are too specific requests and inquiries are "just not cricket". Way, the rules ...
If you typed the word with a lowercase letter, you will find the words to the small and large letters, and if you've typed the word with great - that word would be found only in big letters. For example, the query "swan" search engine will give reference to birds and about the general. The rule: do not type without special needs a word with a capital letter! Otherwise, you simply will not be given a lot of matches.
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