ORCA is a benchmark for Data Web crawler, i.e., crawler that are focussed on gathering structured data. The main idea of ORCA is to generate a synthetic Data Web for which the ground truth is known. It is based on the HOBBIT benchmarking platform and supports distributed crawler implementations.

Available Adapters for Crawler

• LDSpider
• Squirrel

Server Types

• Dump file
• Dereferencing Server
• HTML Webserver with embedded RDFa
• SPARQL endpoint
• CKAN

All servers work on HTTP.