Remote literature search questions

The previous questions are looking for one by one, in knowing. The third big question is that I don't know.

The ultimate purpose of the literature search is: (primary literature).

Searching in a broad sense includes two processes: storage and retrieval. Information storage is the collection of a large amount of disordered information, according to the appearance characteristics and content characteristics of the information source.

After sorting, classifying, condensing, indexing and other processing, it is systematized and orderly, and a database or retrieval system with retrieval function is built according to certain technical requirements for people to search and use. Retrieval, on the other hand, refers to the use of prepared retrieval tools or retrieval systems to find out specific information that meets the requirements of users.

Literature Classification by Grade:

It refers to a form of literature that has not been officially published or has not formed a formal carrier. Such as: letters, manuscripts, meeting minutes, notes, etc.

Characteristics: objectivity, fragmentation, immaturity. Changye is generally obtained through oral conversations, visiting exhibitions, participating in lectures, etc., which not only has a certain value in terms of content, but also can make up for the time-consuming shortcomings of general public literature from the objective formation of information to public dissemination.

It refers to the original documents that have not undergone any processing, such as experimental records, manuscripts, original audio recordings, original video recordings, conversation records, etc. Zero-secondary literature plays an important role in the preservation of original documents, the verification of original data, and the verification of original ideas (right holders).

When using the VIP Chinese journal service platform to query literature, you can search through quick search, Chuanjing's troubled sail search, advanced search and journal navigation.

The VIP database is provided by the Ministry of Science and Technology.

It was developed by Chongqing VIP Information, a large-scale professional data company under the Southwest Information Center. VIP database, also known as "Chinese Science and Technology Journal Database", originated from the "Chinese Science and Technology Journal Title Database" created by the company in 1989, and has now become an important part of the literature protection and retrieval system of domestic universities.

The VIP database covers a variety of Chinese journal data resources in natural science, engineering technology, agriculture, medicine and health, economics, education and library and information science. The database is inspected by professional quality inspectors to ensure the quality of the original text data.

Introduction to the information query system:

The information query system is a hail of system software used to query the information required by the user. The query of information is information management.

Therefore, a large number of technical, economic, production, personnel, equipment and market information are stored in the database of the information system, and the required information should be quickly and easily searched from it, which is the basis of the information query system.

The above content refers to: Encyclopedia - Information Query System.

Answer]: A reverse search method is from near to far, from new to old, against the order of missing state time, and allows the use of search tools to conduct literature search. The focus of this approach is on recent literature. This method is the fastest way to get the most up-to-date information.