On 01/11/2017 02:24 PM, Kingsley Idehen wrote:
> Conclusion:
>
> There is an issue with @prefix handling regarding the Turtle source data
> when loaded into Virtuoso.
>
> My initial presumptions about property-paths "*" operator where
> inaccurate i.e., "*" is indeed about 0 or more occurrences o
Hi Lorenz
On 01/11/2017 11:16 AM, Lorenz B. wrote:
> As I said and showed with my exmaple, it works at least with Apache Jena
> in-memory SPARQL engine.
Yes, this is why I suspect a bug in Virtuoso's sparql engine. I would
like to have Hugh and Kinglsey's opinion on the matter
kind regards
olivi
Hello,
On 01/09/2017 02:11 PM, Lorenz Buehmann wrote:
> It was not my question, but again, the property path * operator is used
> in his query - and this can also mean 0 occurrences of the relation
> rdfs:subClassOf . Maybe I don't understand the meaning of * - I'll check
> the W3C recommendation.
Dear Ivan,
Thank you for the very detailed answer!
We will investigate whether solution #3 would work for us. 500x
performance improvement sure would be nice:-)
Kind regards
Olivier Dameron
On 07/25/2016 06:58 AM, Ivan Mikhailov wrote:
> Hello Oliver,
>
> The cost of "varia
formance of the second query?
Thank you!
kind regards
Olivier Dameron
NB: for the record, below is the script I used for generating the
dataset, as well as the two queries
= generateDataSet.py
#! /usr/bin/env python
import random
nbGenes = 5
geneLengthMax = 100
chromosomeLength = 1
