Page 251 - JOURNAL OF LIBRARY SCIENCE IN CHINA 2015 Vol. 41

250 Journal of Library Science in China, Vol. 7, 2015

organization and retrieval research outside China since 2005. We identified the research hotspots
in the domain of multilingual information organization and retrieval, introduced both theoretical
and practical progress, and gave suggestions for the further study of multilingual information
organization and retrieval in China.

No.5

History, schools and trend in knowledge map: Investigation and visualization
based on SSCI and CSSCI

1 ∗
Shujin CAO, Yubing WU, Jingzhu WEI & Cuichang MA

As an interdisciplinary research field with rapid development, the history and focuses of knowledge
map have great differences between domestic and foreign academia in different disciplines.
This article has done a comprehensive research on important theoretical schools, technological
development trails, research focuses, core researchers and organizations by implementing theories
and methods of knowledge map.
The methods of informetrics analysis are used on the knowledge map related journal articles
in Social Science Citation Index (SSCI) and China Social Science Citation Index (CSSCI)
from 1998 to 2014, using the tools of SATI, UCINET, NetDraw, CiteSpace. Results are shown
specifically according to developmental phases, node articles, highly cited papers, disciplinary
distribution, core authors and core journals, high frequency keyword co-occurrence, author co-
citation and keyword network, to reveal the distribution characteristics of time, content and
disciplines of knowledge map research and to draw a picture of the development of schools,
interdisciplinary study and contributions made by library and information academia by analyzing
and computing comprehensive index of core authors, finally to propose the development trend of
this field.
The main findings of this article are as follows. 1) 2008-2012 is the period of rapid development
and the year 2012 celebrated the most harvest of research achievements and then researches began
to decline gradually. We can divide four phases of domestic and international research and the
research trail follows a pattern of theory research—implication research—implication expansion
of theory and technology—expansion of implication fields. 2) Research focuses of domestic
and international academia are alike in combining research of knowledge map with knowledge
management, information retrieval and ontology. The two technology and implication research
schools are formed internationally while there formed informetrics and implication schools

* Correspondence should be addressed to Jingzhu WEI, Email: weijzhu@mail.sysu.edu.cn, ORCID: 0000-0001-7226-1160