search encrypt private search engine

Do you want to find the original image from an existing image or a small thumbnail? The following eleven search engines can help you find images, search for images, and search for similar images. 1. http://tineye.com/ Tineye is a typical search engine for image

Document directory Accuracy and recall rate Performance Boolean search Probabilistic IR and relevance Queryparser Query Practice Use xapian to build your own search engine: Search After the previous introduction, if you refer to Omega again, it is estimated that you can successfully create a database and add a

All websites must have the "intra-Site Search" function, which helps others find the desired articles and related content on our website. Frequent "intra-Site Search" requires that our database resources be called to increase the server load. Today, we will share this "burden" with everyone and use Google's powerful custom search

expectations for Google. At this time, Google's preference for personalized search technology seems to imply that personalized search will create another miracle.New battlefield of search technology"Personalization" is often a magic weapon for many merchants to win. It can always create one myth after another, and this rule applies to

and recall rate can be considered. Literally, it seems that there is still a spectrum of accuracy, but how can we explain the recall rate?Accuracy and recall rateSometimes, accuracy is also called accuracy. For example, a database contains 500 documents, 50 of which comply with the definition. The system has retrieved 75 documents, but only 45 of them comply with the definition. Recall rate R = 45/50 = 90% Precision P = 45/75 = 60% In this example, the system

Chinese search engine Google search engine ( http://www.gogle.com/) Currently one of the best supported multilingual search engines, about 3,083,324,652 pages in search. Provide Web sites, images, newsgroups and other resources of

In the previous article we talked about search engine backstage work secret, the Spider program is good, the super chain analysis is good, the search engine finally brings to the general user is one kind of convenient information obtains the way: enters a keyword in the search