coli-conc Logo

Subjects and Occurrences

This API can be used to query subjects and occurrences from controlled vocabularies used to describe records in K10plus catalogue. An occurrence gives the number of times a selected concept is used for subject indexing in K10plus database records. Co-occurrences give the number for combination of concepts so they can be used as mapping recommendations. This service allows to query (co-)occurrences of selected vocabularies (RVK, BK, DDC...) from K10plus database. The results are partly based on a database snapshot.



Sample Queryies

See also API documentation and implementation for details. Extension and a web interface to use the API are planned (see #19).