14个SPARQL查询基准.txt

# Query1
# This query bears large input and high selectivity. It queries about just one class and
# one property and does not assume any hierarchy information or inference.
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX ub: <http://www.lehigh.edu/~zhp2/2004/0401/univ-bench.owl#>
SELECT ?X
WHERE
{?X rdf:type ub:GraduateStudent .
  ?X ub:takesCourse
http://www.Department0.University0.edu/GraduateCourse0}

# Query2
# This query increases in complexity: 3 classes and 3 properties are involved. Additionally, 
# there is a triangular pattern of relationships between the objects involved.
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX ub: <http://www.lehigh.edu/~zhp2/2004/0401/univ-bench.owl#>
SELECT ?X, ?Y, ?Z
WHERE
{?X rdf:type ub:GraduateStudent .
  ?Y rdf:type ub:University .
  ?Z rdf:type ub:Department .
  ?X ub:memberOf ?Z .
  ?Z ub:subOrganizationOf ?Y .
  ?X ub:undergraduateDegreeFrom ?Y}

# Query3
# This query is similar to Query 1 but class Publication has a wide hierarchy.
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX ub: <http://www.lehigh.edu/~zhp2/2004/0401/univ-bench.owl#>
SELECT ?X

WHERE
{?X rdf:type ub:Publication .
  ?X ub:publicationAuthor 
        http://www.Department0.University0.edu/AssistantProfessor0}

# Query4
# This query has small input and high selectivity. It assumes subClassOf relationship 
# between Professor and its subclasses. Class Professor has a wide hierarchy. Another 
# feature is that it queries about multiple properties of a single class.
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX ub: <http://www.lehigh.edu/~zhp2/2004/0401/univ-bench.owl#>
SELECT ?X, ?Y1, ?Y2, ?Y3
WHERE
{?X rdf:type ub:Professor .
  ?X ub:worksFor <http://www.Department0.University0.edu> .
  ?X ub:name ?Y1 .
  ?X ub:emailAddress ?Y2 .
  ?X ub:telephone ?Y3}

# Query5
# This query assumes subClassOf relationship between Person and its subclasses
# and subPropertyOf relationship between memberOf and its subproperties.
# Moreover, class Person features a deep and wide hierarchy.
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX ub: <http://www.lehigh.edu/~zhp2/2004/0401/univ-bench.owl#>
SELECT ?X
WHERE
{?X rdf:type ub:Person .
  ?X ub:memberOf <http://www.Department0.University0.edu>}