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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.

API

Endpoints

Sample Queryies

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