[Purpose/significance] Subject basic vocabulary is an important cornerstone of subject knowledge. It is of great significance to understand the composition of the knowledge system of discipline, to clarify the knowledge context of discipline and to promote discipline education. However, for a long time, it mainly relies on manual summarization and cannot be automatically mined within a certain discipline.[Method/process] This paper proposes a method to use the keyword co-occurrence network to discover basic vocabularies within the discipline. This method takes advantage of the relatively low word frequency of the basic vocabulary and the relatively high degree of centrality in the network, and automatically obtains the subject basic vocabulary from the subject keyword dataset.[Result/conclusion] The validity of this method is verified by using the keyword datasets in the fields of computer(full dataset), user interfaces and information search and retrieval from ACM's 1969-2012 theses. Moreover, this method can use simpler steps to discover the global basic vocabulary in the data set.
Yu Fengchang
,
Lu Wei
. The Discovery of Subject Basic Vocabulary from the Perspective of Keyword Co-occurrence Network[J]. Library and Information Service, 2019
, 63(9)
: 95
-100
.
DOI: 10.13266/j.issn.0252-3116.2019.09.010
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