The CNKI database is the core of the project, and the CNKI resource master database includes many data sub-databases.
There are mainly China academic journals online publishing database, China excellent doctoral (master's) dissertation full-text database, China important newspapers full-text database, China important conference papers full-text database, China book full-text database, China yearbook online publishing database, China economic and social development statistical database and China economic information literature database.
China legal knowledge database, China standard database, China patent database, national scientific and technological achievements database, foreign standard database, etc.
First, quick retrieval.
Click the library homepage to enter the full-text database of CNKI journals, and click "Quick Search" at the top of the search box to enter the quick search page. There is only one search box for quick retrieval, and there are no restrictions on fields, word positions and word frequency. The system will search and match the full text. Enter a search term in the quick search box, and then click Quick Search.
Second, the standard retrieval
Standard retrieval is what we often call advanced retrieval, which can limit various retrieval fields and specify word frequency. To carry out effective Boolean logic combination retrieval, reduce retrieval redundancy and improve retrieval efficiency. Therefore, we generally advocate the use of standard retrieval for literature retrieval.
Third, professional retrieval.
Professional retrieval can provide a retrieval method of combining logical expressions according to the actual needs of users, which can effectively improve the precision rate.
Data expansion
China national knowledge infrastructure
China HowNet, founded on June 1999, is an academic platform of Tongfang shares controlled by China National Nuclear Corporation Capital Holdings Limited.
HowNet is the concept of National Knowledge Infrastructure (NKI), which was put forward by the World Bank in 1998. CNKI project is an information construction project aimed at realizing the dissemination, enjoyment and value-added utilization of knowledge resources in the whole society.