FedShop - Hackathon

Hackathon

# Organization

data/
|  virtuoso.ini        # The template configfile for Virtuoso 7.2.7
|  virtuoso_batch_*.db    # The dump of Virtuoso for 2 batches. Batch 0 contains 10 vendors and 10 rating sites; Batch 4 contains 50 vendors and 50 rating sites.
|  batch_*.nq.zip     # Compressed file containing NQuads for given batch 0/4
|  fedx_batch_*.conf     # FedX federation members declaration for batch 0/4.
queries.txt         # List of federated queries following the BSBM explore use case.

# What does each batch contain?
- We generate data using BSBM schema.
- Batch 0 contains 10 vendors and 10 rating sites; Batch 4 contains 50 vendors and 50 rating sites.
- Each source is stored in dedicated named graph, i.e "http://localhost:8890/sparql/?default-graph-uri=www.ratingsite{0..49}.fr" or "http://localhost:8890/sparql/?default-graph-uri=www.vendor{0..49}.fr".

# How to use it
- Start Virtuoso v7.2.7 with the desired batch, i.e, virtuoso_batch_4.db and update virtuoso.ini.
- To obtain expected results, simply execute any given query in queries.txt directly on Virtuoso.
- Start RDF4J's FedX with corresponding config file, i.e, fedx_batch_4.conf.
- Run any query in queries.txt
- The NQ files are dumps of virtuoso_batch*.db. They could be used for ingesting in other datastores or to build indexes.