Re: [Virtuoso-users] Best way to query a random sample?

2011-04-14 Thread Hugh Williams
Hi Hoan, If they are available in RDF/XML form you can load them singularly if there are not many using the Conductor “RDF -> Upload RDF” tab or using the RDF_LOAD_RDFXML_MT() [1] function and if there are many files the Virtuoso RDF Bulk loader [2] scripts can be used to upload them all at on

Re: [Virtuoso-users] Implementing a simple ACL atop a SPARQL endpoint

2011-04-14 Thread Tim Haynes
On 14/04/2011 04:57, Aldo Bucchi wrote: > Hi, > > I have done this many times already, so I can tell it is a pattern. > I have a Virtuoso in an intranet, and one or more applications talk to > it via SPARQL HTTP. > > I would like to also allow selected external users (humans) and > applications t

Re: [Virtuoso-users] Question about SPARQL and Linked Data Dereferencing

2011-04-14 Thread Kingsley Idehen
On 4/14/11 8:02 AM, Daniel Lewis wrote: Dear Virtuoso Users list, Virtuoso seems to be my fate, as I've used it several times for different projects over the past couple of years. I have a question relating to the SPARQL engine in Virtuoso, specifically regarding Linked Data URI Dereferencing a

Re: [Virtuoso-users] Best way to query a random sample?

2011-04-14 Thread Hugh Williams
Hi Hoan, What form are these local ontologies available in ? Are they available as file datasets in N3, RDF/XML or other formats or are they stored internal in this OntModel tool ? Best Regards Hugh Williams Professional Services OpenLink Software Web: http://www.openlinksw.com Support: http:/

Re: [Virtuoso-users] Implementing a simple ACL atop a SPARQL endpoint

2011-04-14 Thread Hugh Williams
Hi Aldo, You can use WebID/Oauth/SQL authentication and configure separate SPARQL endpoints with various ACLs and user access rights as detailed in section 16.2.3.4.1. "Managing a SPARQL Web Service Endpoint" of the documentation at : http://docs.openlinksw.com/virtuoso/rdfsparql.html#

[Virtuoso-users] Question about SPARQL and Linked Data Dereferencing

2011-04-14 Thread Daniel Lewis
Dear Virtuoso Users list, Virtuoso seems to be my fate, as I've used it several times for different projects over the past couple of years. I have a question relating to the SPARQL engine in Virtuoso, specifically regarding Linked Data URI Dereferencing and Caching. I have a Virtuoso installation

[Virtuoso-users] Implementing a simple ACL atop a SPARQL endpoint

2011-04-14 Thread Aldo Bucchi
Hi, I have done this many times already, so I can tell it is a pattern. I have a Virtuoso in an intranet, and one or more applications talk to it via SPARQL HTTP. I would like to also allow selected external users (humans) and applications to access the endpoint. Some with SPARQL Update privilege