Updating search context in RRDP: coin types as a search facet

I have finally had the time to enhance the search indexing of dies in the Roman Republican Die Project. Although RRDP dies may have the RRC number in the ID portion of the URI or in the title of the record, there is no explicit link in RRDP metadata from a die to a type. Instead, dies are linked to specimens, and specimens are linked to types. The initial version of RRDP only indexed explicit metadata into Apache Solr for the search and browse page--in this case, control marks represented by symbols, letters, or monograms. The die -> specimen -> type graph can only be extracted via Nomisma.org's SPARQL endpoint, and I have just recently implemented this SPARQL lookup into the Solr indexing process by creating an API in Numishare to extract a list of coin types associated with a die URI.

 

Updated RRDP browse page with coin type facet

As a result, the coin type(s) are now visible in the browse page and can be used for narrowing down the query response. In addition, the list of associated types is visible in the RRDP record page, below the typological description and above the die example photographs.