Page 175 - Journal of Library Science in China, Vol.47, 2021

174 Journal of Library Science in China, Vol.13, 2021

the knowledge organization of photo archive data is expanded in dimensions through the “type”
and “constraint” set. It reflects the basic characteristics of archival resources, and its structure is
shown in Figure 9.

Figure 9. Knowledge organization model of archival data from DH perspective

Using the ontology model as the framework, the obtained examples are entered into the
system and graph database, and the knowledge graph of WU Baokang’s photo archive data
in the state of “static association” can be obtained. On this basis, the cluster analysis of WU
Baokang’s Academic Chronicle, especially the physical portrait of WU Baokang and other core
figures, obtained semantic labels from different perspectives in different events or themes, and
then combined with the Chinese Library Classification and Chinese Archive Subject Thesaurus
and other normative classification systems or thesauruses to align semantic tags, with the help
of the open-source visualization library Apache ECharts, an archival data knowledge graph
with “dynamic aggregation” effect was generated. Thus, the multi-dimensional knowledge
organization mode of archival data is reflected with specific events and people as the core, as
shown in Figure 10.