May 05, 2006
Local Mirrors of Useful RDF Data Sources
This morning I released another internal improvement to the SPARQL query service, adding the first of several caching layers to improvement performance and efficiency.
The service now has local caches of a large set of useful RDF data sources including many from the DAML project, a copy of the CIA World Factbook, airport and country codes, etc. There's also a complete mirror of the Historical IDs data set. I'm expecting this mirror to grow to encompass other useful, and reasonably static data sources. Mail me if you have further suggestions.
I'm currently considering adding some of the GovTrack data, as well as some bioinformatics resources.
There's no need to adapt queries to use the locally mirrored data. Using the Jena FileManager API specific URLs are automatically remapped to local copies. A complete list of cached URLs is included below.
The table is generated using a SPARQL query over the location mapping config and rendered as Javascript code by the SPARQL service. No AJAX, just simple code insertion.