Page 94 - JOURNAL OF LIBRARY SCIENCE IN CHINA 2015 Vol. 41

Huajun HUANG, Xinhong ZENG, Weiming LIN & Ruoyun CHEN / Formal semantic description standard family for 093
Chinese KOS (Ⅱ): Research and implementation of Classification Scheme Sharing Service System

3) Via the URI location, a lot of meaningful information (associated objects) of this object (i.e.
class) may be provided, such as the class entry information (including class number, class name,
mapping subject, various notes, superordinate class, subordinate class, coordinate class, etc.),
its URI, selectable formats for download, and so on. The details of the associated objects can be
inquired through their RDF Links. The correlation with similar concepts in other vocabularies (e.g.
mapping links to descriptors in CCT v2.0) is also provided, so the correlation between CLC and
other thesauri can be achieved.
4) For the downloading and online browsing, three exchange syntaxes (RDF/XML, N-Triples
and JSON) are provided respectively for CNKOS and SKOS under the selectable formats.
5) Moreover, it provides the inquiry service of SPARQL Endpoint, and makes it easier for the
users to customize the data formats for CLC and CCT that a machine can handle.
The Linked Data of classification scheme could build direct or indirect connection between
network resources, laying a good foundation for the machine-readable progress and Web progress
of classification data and subject data (L. Zeng, 2012). In order to exploit the library’s knowledge
spreading functionality in the internet era, all kinds of resources in libraries could be linked
together. For example, new resource finding and access service may be offered to users through
correlating the Linked Data of classification scheme with catalog data, with other traditional KOSs,
etc., and the interactive service between machines or application programs may be achieved via
sharing formats and SPARQL inquiry. The experimental system was implemented and released in
April 2013, and its login address is: http://nkos.lib.szu.edu.cn/CCT_CLC_V4.0.

5 Conclusions

As an experimental study, we take the CLC v4.0 as an example and achieve the networked sharing
service of classification scheme, which includes the interconnection with thesaurus (e.g. CCT
v2.0). The existing practices have proven that the service could be put into use, and readers feel
free to check out our website (NKOS Research Office of Shenzhen University Library, 2013) to
have a real-time test.
CLSS is a uniform supporting system developed for classification-like Chinese networked
KOSs. The successful implementation of this system verifies the scientificity and practicality of
CNKOS. The classification schemes, categorization schemes, standard code tables and others that
are semantically described in CNKOS may have all functions provided by this system.
In future work, we will continue to improve the system service and to intensify the website
construction, while keep strengthening the communication with users in practical application of the
system. Links to more Web resources (e.g. catalog information), or mappings to the international
mainstream classification schemes may also be provided. The sharing and integration between
different systems and applications would be intensified.
We should conform to the trend of network information age, break the boundary of the library to set