Also tested original query but removed all * from narrower, so ontology
query returns less keywords, and query time dropped to half. Still too
slow...
-Mikael
On 8.8.2016 13:43, Andy Seaborne wrote:
There is a a certain amount of "it depend" here: what's the data
stored in? what shape is the data?( which Jena version?)
In the next release, and available in development builds is:
https://issues.apache.org/jira/browse/JENA-1195
where property* got speeded up recently. Usually, it took moderately
unusual data to show this up but the repeated use of an expensive
operation in property* may be happening here too.
Mikael - are you able to try out a SNAPSHOT build?
Andy
On 08/08/16 11:37, Håvard Ottestad wrote:
Is this any better?
SELECT DISTINCT ?s ?p ?o WHERE {
GRAPH <http://www.lingsoft.fi/resource-meta/> {
?s <http://purl.org/dc/terms/isPartOf>
<http://www.lingsoft.fi/rdf/uid/574ef1a40236a> .
?s <http://purl.org/dc/terms/subject> ?child .
?s ?p ?o
}
GRAPH <http://www.lingsoft.fi/> {
SELECT DISTINCT ?child WHERE {
{<http://www.lingsoft.fi/c16e9937a515bda6> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/e56f6309f0d86b95>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/b393055ac0f3a0bc> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/642194686a67f935> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/a9beeb4bf0b0af70>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/ce3598292f301cec> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/26aa300e4c033981> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/bd07d765f36ea88f>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/bcf9e082e2ae8c9b> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/78d3955357a8ac10> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/369b1a9c822f55db>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/7098a84669b9feca> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/b7cb30c4efed996a> skos:narrower* ?child}
}
}
}
Regards,
Håvard M. Ottestad
On 08 Aug 2016, at 11:25, Mikael Pesonen
<[email protected]> wrote:
Hi,
I'm not if this is the correct forum to ask but hope you can help.
This query takes over 20 seconds with jena:
SELECT DISTINCT ?s ?p ?o WHERE { GRAPH <http://www.lingsoft.fi/> {
SELECT DISTINCT ?child WHERE {
{<http://www.lingsoft.fi/c16e9937a515bda6> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/e56f6309f0d86b95> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/b393055ac0f3a0bc>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/642194686a67f935> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/a9beeb4bf0b0af70> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/ce3598292f301cec>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/26aa300e4c033981> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/bd07d765f36ea88f> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/bcf9e082e2ae8c9b>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/78d3955357a8ac10> skos:narrower* ?child}
UNION {<http://www.lingsoft.fi/369b1a9c822f55db> skos:narrower*
?child} UNION {<http://www.lingsoft.fi/7098a84669b9feca>
skos:narrower* ?child} UNION
{<http://www.lingsoft.fi/b7cb30c4efed996a> skos:narrower* ?child} }
} GRAPH <http://www.lingsoft.fi/resource-meta/> { ?s
<http://purl.org/dc/terms/subject> ?child . ?s
<http://purl.org/dc/terms/isPartOf>
<http://www.lingsoft.fi/rdf/uid/574ef1a40236a> . ?s ?p ?o } }First
graph query is for getting keywords from an ontology graph, second
is for querying documents having those keywords. Is there better
way/order to make this query? Thank you for the help, Mikael
--
www.lingsoft.fi
Speech Applications - Language Management - Translation - Reader's
and Writer's Tools - Text Tools - E-books and M-books
Mikael Pesonen
System Engineer
e-mail: [email protected]
Tel. +358 2 279 3300
Time zone: GMT+2
Helsinki Office
Eteläranta 10
FI-00130 Helsinki
FINLAND
Turku Office
Linnankatu 10 A
FI-20100 Turku
FINLAND
--
www.lingsoft.fi
Speech Applications - Language Management - Translation - Reader's and Writer's
Tools - Text Tools - E-books and M-books
Mikael Pesonen
System Engineer
e-mail: [email protected]
Tel. +358 2 279 3300
Time zone: GMT+2
Helsinki Office
Eteläranta 10
FI-00130 Helsinki
FINLAND
Turku Office
Linnankatu 10 A
FI-20100 Turku
FINLAND
