Bibliometrics refers to the metrological science in the process of information transmission. It includes not only all kinds of specific literature that we are familiar with, but also all kinds of indicators related to literature.
Number of authors, word frequency statistics, number of citations, number of circulation, number of copies, etc. It is a quantitative and qualitative analysis method.
Three typical models are involved: Bradford's law of literature dispersion, Lotka's law ， zipf's law 。 
