What is keyword search? What is directory search? What is engine search?

Keyword search, also known as reserved word search, refers to the terms of content names such as products, services or companies that visitors want to know in the search engine industry. In addition, keywords are also computer languages.

Directory search engines collect information manually or semi-automatically. After checking the information, editors manually form a summary of the information and put it into a predetermined classification framework. Most of the information is website-oriented, providing directory browsing service and direct retrieval service.

The so-called search engine is a retrieval technology that uses specific strategies to retrieve formulaic information from the Internet and feed it back to users according to users' needs and certain algorithms.

Search engines rely on a variety of technologies, such as web crawler technology, retrieval sorting technology, web page processing technology, big data processing technology, natural language processing technology and so on. To provide fast and highly relevant information services for information retrieval users.

Extended data:

According to a certain strategy, we use a specific computer program to collect information from the Internet, organize and process the information, provide retrieval services for users, and display the retrieved related information to the user's system.

A retrieval technology working on the Internet refers to improving the speed of people's access to and collection of information and providing people with a better network environment. From the function and principle, search engines can be roughly divided into four categories: full-text search engines, meta-search engines, vertical search engines and directory search engines.

The infrastructure and algorithm have been basically formed and the technology is mature. Search engine has developed into a system that collects information from the Internet according to certain strategies and uses specific computer programs, organizes and processes the information, provides retrieval services for users, and shows users information related to user retrieval.