A sort algorithm of search results

A sort algorithm of search results
June 26, 2005来 Source: Unknown
With heavy pawnage, search engines are always at a disadvantage in the long war with spam (it is easy to understand that search engine companies really consider the relevance and sequencing of search results only a few people, while the internet on the day to figure out how to deal with the search engine has tens of thousands of hundreds of thousands of webmaster), So the punishment for spam is very strict, in fact, all the search engines for their spam behavior, usually only a penalty: permanent shielding. Now the popular Taiji chain, Phoenix chain of these hyper-chain group, there is the possibility of being treated as spam. The domestic search engine registration has not formed a market, but in foreign countries is very developed industry, the annual growth rate of 200%, they call SEO, that is, search engine optimization.
In a way, almost spam is driving the search engine's progress, a long time ago, the search engine for the search results can be more accurate, in order to be able to put the most relevant search results in front of the invention of the meta tag. At first, the META tag is very useful, at that time, honest webmaster to fill in the site summary, truthfully listed with his site most relevant keywords, search engines crawl, index, retrieve these honest meta tag, and as the search results ordering important basis, then, It was a sweet, peaceful time.
Time passes quickly, and sweet times cannot stop the power of capital. "Once there is a proper profit, the capital is bold ... 50% of the profits, he took the risk, and 100% of the profits, he would dare to trample all the laws of the world, 300% of the profits, he dared to commit any crime, or even the danger of the head. "More and more websites are starting to pursue revenue-seeking pageview, and they're starting to cheat search engines by stuffing a bunch of keywords into meta tag and stuffing them with popular keywords that aren't relevant to their site's content." The power of the masses is huge, the relevance of the search engine is destroyed ...
　
Search engines start the first round of counterattack against cheaters, but they are powerless to do so by relying more on the body of the page rather than meta tag in order.
Cheaters to enter the retreat, start the second round of attacks, they are in the body of a large number of pages with the same color background keyword, in the image tags into the keyword, in the Web page code to add "invisible annotation."
Search engines started a second round of counterattack, and they found an effective way to filter out the unseen text and achieve a small victory.
Good is the epitaph of the good, despicable is despicable pass ", cheaters see conventional weapons ineffective, began to use the search engine sincerity." The search engine's spider is the gentleman on the Internet, they visit any website to report the identity, and check the website's visit stipulation, completely according to each website's rule to act. As a result, cheaters meticulously produced two sites, a dedicated user access, a dedicated search engine access, whenever the discovery of access requests from the search engine, it returned to the search engine to see the search engine satisfied with the page, and normal visitors can only see another very different site. This method is called cloaking. This third round of attacks, the cheater wins.