On 7/6/14 4:41 AM, William Ballantyne wrote:
I have an enquiry for DBPedia administration (admin of the iSPARQL and Virtuoso instance at http://dbpedia.org/isparql/) following up on advice of the OpenLink Virtuoso/iSPARQL community.I wish to request importation of some generally beneficial ontologies; this ontology import functionality being locked down to administrative users on the DBPedia iSPARQL instance.I wish to use iSPARQL's drag and drop functionality to bind nodes and connectors to individual properties and classes. The operation depends upon populating the list of properties and classes by importing an ontology/schema using the 'Schemas' panel on the right hand side of the QBE window.When trying to import any generally useful (or the most generic) ontology, like 'dbpedia.org/ontology' by selecting it from the list and clicking 'Import', the DBPeia instance at http://dbpedia.org/isparql denies me permission to complete the procedure. It produces the following error message:"Virtuoso 42000 Error SR186: No permission to execute procedure DB.DBA.RDF_SPONGE_UP with user ID 106, group ID 106"The error message goes on to lay out a whole SPARQL query (I have assumed: which appears to be trying to return the definitions from whatever schema or ontology is selected, to try to implement the import).The OpenLink explanation for the error is that the ontology import functionality is restricted, and the classes and properties can be made to populate the Schemas window if I request site admin to import a generally useful ontology such as dbpedia.org/ontologyFurther, lacking this functionality is a serious bug in the DBPedia instance of iSPAQRL, which entirely restricts the creation of meaningful bindings for nodes and connections through drag and drop operations, which is one of the most attractive features of the iSPARQL QBE interface. It is understandable that the Import function is restricted for general use by the public in order to avoid opening it up to vulnerabilities, but it would allow the DBPedia iSPARQL instance to be used in the intuitive drag and drop mode for which it was intended, if administration were to import a few essential ontologies and so provide the public with some individual properties to choose from in the public view of the scehmas window. It need not be such a serious bug. At the moment your DBPedia-hosted iSPARQL queries complete fine if I type out the property including the schema/ontology directly onto the node or connector, but this fails to demonstrate the visual query builder principle.I recommend (and request) that administration of the DBPedia iSPARQL instance import the following common and generally useful ontologies for general use in the visual query editor:dbpedia.org/ontology dbpedia.org/properties rdfs.org/sioc
To cut a long story short, we can import the above as standard. That should happen in the next day or so. Kingsley
Any advice on who to contact or related issues is welcome, and I would be grateful if admin of the DBPedia iSPARQL and Virtuoso instance at http://dbpedia.org/isparql would be willing to respond.DataBlob Contact: William Ballantyne wballant...@yahoo.com ------------------------------------------------------------------------------ Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft _______________________________________________ Dbpedia-discussion mailing list Dbpedia-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
-- Regards, Kingsley Idehen Founder & CEO OpenLink Software Company Web: http://www.openlinksw.com Personal Weblog 1: http://kidehen.blogspot.com Personal Weblog 2: http://www.openlinksw.com/blog/~kidehen Twitter Profile: https://twitter.com/kidehen Google+ Profile: https://plus.google.com/+KingsleyIdehen/about LinkedIn Profile: http://www.linkedin.com/in/kidehen Personal WebID: http://kingsley.idehen.net/dataspace/person/kidehen#this
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