They are title field, author field, keyword field, subject field, institution field, Chinese publication name field, Chinese abstract field, citation field, fund field, full text field, year field, number of issues field and ISSN field. 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.

CNKI project is an information construction project aimed at realizing the dissemination, enjoyment and value-added utilization of knowledge resources in the whole society. Initiated by Tsinghua University and Tongfang Co., Ltd., it was established in June 1999.

Under the close cooperation of academia, education, publishing, library and information science and the direct leadership of Tsinghua University, CNKI Engineering Group has built the world's largest full-text information "CNKI Digital Library" by adopting self-developed and internationally advanced digital library technology.

Specific objectives of China HowNet project:

First, integrate knowledge and information resources on a large scale to improve the comprehensive and value-added utilization value of resources as a whole; The second is to build a service platform for Internet diffusion and value-added knowledge resources, and provide information conditions for resource sharing, digital learning and knowledge innovation for the whole society.

The third is to build a platform for the in-depth development and utilization of knowledge resources and provide information means for knowledge management and knowledge service for all sectors of society; The fourth is to create a market environment and commercial mechanism for the production and publishing departments of knowledge resources to publish and distribute on the Internet, and vigorously promote the modernization and leap-forward development of cultural publishing and industry.