Chinese Science Citation Database Research Articles

Observations concerning the two‐ and three‐year synchronous impact factor, based on the Chinese science citation database

Generally speaking, the three‐year synchronous impact factor is larger than the two‐year one. This follows from theoretical models derived from observations based on ISIÒs database. In this article we present an exception to this general rule, based on data from the Chinese Science Citation Database (CSCD). In 1998 42% of this databaseÒs source journals did not follow the expected trend. As a possible explanation we note that, contrary to intuition, in the CSCD the changes in the number of both publications and citations are largely independent. It is, however, not ruled out that the observed discrepancies are nothing but statistical fluctuations of the basic publication‐citation model.

An Introduction to the Barycentre Method with an Application to China's Mean Centre of Publication

We explain the barycentre method and show how to apply it in a practical situation. A country's mean centre of publication, or publication barycentre, is defined and its evolution is studied in the case of China's centre of publication. Data for this application are taken from the Chinese Science Citation Database (CSCD). It is shown that China's publication barycentre slowly moves to the south and that it approaches the population barycentre. Tentative explanations for this southward movement, based on economic and educational considerations, are given. It is observed that inequality in publication between administrative units (regions) decreases slowly.

Chinese science citation database: Its construction and application

Abstract The important role of the Institute for Scientific Information'sScience Citation Index (SCI) as an international retrieval and evaluation tool is briefly discussed. The role ofChinese Science Citation Database (CSCD), the counterpart of SCI in China, in improving the application of citation retrieval method in China, is summarized. The construction process and status quo of CSCD are explained.