Stardog 2.2 graph analytics embedded in SPARQL queries

graph_shortestpath_reasoning.ttl

# graph for shortest path with reasoning
@prefix rule: <tag:stardog:api:rule:> .
@prefix : <urn:test:> .
@prefix g: <tag:stardog:api:property:graph:> .

# the graph
:one :to :two .
:one :to :four .
:two :to :four .
:two :to :five .
:three :to :one .
:three :to :six .
:four :to :three .
:four :to :five .
:four :to :six .
:four :to :seven .
:five :to :seven .
:seven :to :six .
:eight :to :nine .
:nine :to :ten .
:ten :to :eight .

:five a :reasoner .

# the rules
[] a rule:SPARQLRule ;
	rule:content """
		IF {
			?node a :reasoner
		}
		THEN {
			?node :to :nine
		}
	""".

pagerank.sparql

select ?s ?score  {
  (?s ?score) stardog:property:graph:pageRank (100 .80)
}
order by ?score
limit 10

shortest.sparql

prefix uni: <http://www.Department0.University0.edu/>

select ?index ?source ?predicate ?target {
 (?source ?predicate ?target ?index) stardog:property:graph:shortestPath (uni:UndergraduateStudent299 uni:Course0)
}

strongcomponents.sparql

select distinct ?cluster ?subject  {
  (?cluster ?subject) stardog:property:graph:strongComponents () 
}
order by ?cluster

strongComponents.ttl

# from StrongComponentsTest.java
@prefix : <urn:test:> .
@prefix g: <tag:stardog:api:property:graph:> .

:one :to :two .
:two :to :four .
:three :to :two .
:three :to :four .
:three :to :six .
:four :to :one .
:five :to :four .
:five :to :eight .
:six :to :three .
:six :to :five .
:seven :to :six .
:seven :to :seven .
:seven :to :eight .
:eight :to :five .

weakcomponents.sparql

select ?cluster (count(?cluster) as ?count)  {
  (?cluster ?subject) stardog:property:graph:weakComponents () 
}
group by ?cluster
order by ?cluster