Page 207 - JOURNAL OF LIBRARY SCIENCE IN CHINA 2018 Vol. 42

206 Journal of Library Science in China, Vol. 8, 2016

among these concepts one can deduce the various theoretical programs for the contents of Library
Science.
Schrettinger’s doctrine also suggests a technological aspect of Library Science,which is
reflected in cataloging,subject indexing,classification and other technical methods or tools. He
was keenly aware of the conflicting nature of the purposes of classification and the literature
search needs of people. To better serve people’s searching needs,he created the first subject
catalog in the world where broad classification catalogs were divided into major subject
catalogs.

Dynamic evolution of the close-knit domain knowledge communities in
folksonomy
TENG Guangqing ①a *

For its high level of perceived ease of use,Folksonomy presents a discrete and perplexing
appearance in its practical application. Studies about domain knowledge communities and their
structural relationships within Folksonomy (knowledge organization mode) make up an important
research topic in library and information academia and are crucial for a thorough understanding
of numerous phenomena,such as deviation,crossover and fusion,in the development of domain
knowledge.
This study makes an extraction of 2,231 related articles in specific knowledge domains with
647 tags and the inter-tag-relationships number is 11,749 in total. The tagging-time span is from
2006 to 2015 and the timer shaft is divided into 10 units of time-window. The study adopts as
the major research approach the clique analysis technique which is commonly used for complex
network analysis,and domain knowledge networks are constructed via co-tagging relations of
the tags. The cliques at level are constructed via dynamic thresholds based on the association
relationships between tags and the close-knit domain knowledge communities are identified by the
frequency and completeness of the association relationships. The dynamic tracking and analysis of
the close-knit knowledge communities in specific domain knowledge are executed with the time
series as clues. Finally,the skeleton structure of domain knowledge is extracted in perspective of
overlapping cliques.
The present study concludes that,in the development of domain knowledge based on
Folksonomy,tag population in domain mature stage tends to become saturated while the
association relationships between the tags (lines) continue to yield a sustainable increase and the
scale of close-knit domain knowledge communities presents a tendency of fluctuating expansion.
Two factors account for this fluctuating expansion. Firstly,there are remarkable dynamic changes
in the development of domain knowledge. some significant relationships between tags in the
* Correspondence should be addressed to TENG Guangqing,Email:tengguangqing@163.com,ORCID:0000-0002-1053-0959