rdfOptStats

rdfOptStats is a command line utility for generating statistics on RDF for use with our WeightedOptimiser for SPARQL queries.

Download

You can download this tool as part of our Toolkit

Command usage is as follows:

rdfOptStats.exe [options] input1 [input2 [input3 ...]]

e.g. Generate all stats to a file stats.ttl for the input files data1.rdf and data2.rdf

rdfOptStats.exe -all -output stats.ttl data1.rdf data2.rdf

e.g. Generate all stats for all files within a given directory

rdfOptStats.exe -all -output stats.nt data\*

Only simple wildcard patterns are supported as inputs e.g.

Any other wildcard pattern will be rejected

Option	Purpose
`-all`	Specifies that counts of Subjects, Predicates and Objects should be generated
`-literals`	Specifies that counts should include Literals (default is URIs only) - this requires an output format that supports Literal Subjects e.g. N3
`-nodes`	Specifies that aggregated for Nodes should be generated i.e. counts that don't specify which position the URI/Literal occurs in
`-p`	Specifies that counts for Predicates should be generated
`-o`	Specifies that counts for Objects should be generated
`-output file`	Specifies the file to output the statistics to
`-s`	Specifies that counts for Subjects should be generated