netscape search engine

PHP implementation to determine whether access is a search engine robot method, the route search engine The example in this paper describes how PHP realizes whether the access route is a search engine robot. Share to everyone for

Today, the search engine is over and opening up the future. To clarify the third law, let's first review the first and second law.■ Law 1 correlation lawIt sounds like an academic paper. Even the first and second laws have never been mentioned before, but first, the content of the second law has already been recognized by the industry and academia. In fact, this first law has been widely studied by acad

Question 1: When a site has been logged into the major search engines, and the location is good, after a period of time need to re-register it? If yes, how long should it be better? In general, we do not need to re-register, unless the site's ranking in the engine dropped or your site has a relatively large update. For some minor updates, you do not have to re-register because most of the engines that use t

At present, the application of search engine is more and more wide, is the Internet essential tool of Netizen. In China, the use of a wide range of search engines are: Baidu Google search of the North Skynet search Sogou and a number of professional

In traditional information retrieval, the basic index of the system: Recall (Recall) and precision ratio (pricision), recall is the number of related documents retrieved and the ratio of all relevant documents in the document library; The precision ratio is the percentage of the number of related documents retrieved and the total number of documents retrieved. For a retrieval system, recall rate and accuracy can not be the same: high recall rate, low precision, high precision, low recall. For

Major search engine website logon portals | common search engine website logon Portals Google website logon PortalBaidu website logon PortalYahoo website logon PortalLive website logon PortalDmoz website logon PortalCoodir website directory logon PortalAlexa website logon PortalSogou website recordingChinese

No. 365, Python distributed crawler build search engine Scrapy explaining-elasticsearch (search engine) queryElasticsearch (search engine) queryElasticsearch is a very powerful search

Before we uncover those big search engine rules, we want to say that the value of information varies from person to man and may be important to a class of people who may be worthless to another. 　 We have a friend who keeps a few good dogs in his home. Once, we talked about how to make these dogs make money for their owners. We advise him to be a dog's website, which can include dog common sense, dog anecdo

In the early days of Internet development, the site is relatively small, information lookup is easier. However, with the explosive development of the Internet, ordinary network users want to find the necessary information is like a needle in a haystack, then to meet the needs of the public information retrieval of professional search site has emerged. The ancestor of the search

Main news search engine Baidu News Searchhttp://news.baidu.com/Baidu News is currently the world's largest Chinese news search platform, published daily 80000--100000 News, news sources including more than 500 authoritative sites, hot news by the news source site and the media every day "democratic vote" elected, does not contain any artificial editorial componen