Peter and John and rdfgateway forum Re: comments on OWL, inference and RDF I have followed the work at Intellidimension for some time. it is singular in its...
Paul Prueitt
psp@...
May 2, 2009 2:33 pm
1031
We haven't yet created a rulebase to support owl 2, but we plan on doing so. I don't think this will be a large effort, we just haven't had any call for it...
Our inference engine is rule based which puts us in the owl full camp (since dl and lite and targeted at description login engines). This means our reasoning...
Hi Geoff, I wonder if you could tell me if there is a more efficient way to the following: We have a component that renders our RDF data using a tree. It...
Yeah, sounds like you need to implement BulkMatch in your datasource. Then you'd get hit once for getting all children and once more for getting all the labels...
During OwlDataSource instance creating it executes some reasoning. As I understood, it is not full, but only initial reasoning (may be T-Box and A-box). But I...
Alexander Sidorov
alexidsa@...
May 14, 2009 9:51 am
1036
Hi Alexander, The rules used are embedded in the assembly as a resource - here's a snippet of code used by the model to register the standard owl rulebase...
1. OwlDataSource is a subclass of InferenceDataSource. InferenceDataSource perform incremental inference as statements are added to/removed from it. So, as you...
That was a sparql query that imports a rulebase -- so you'd want to use one of the interfaces that accepts sparql queries to execute. E.g. querying a...
Thank you for clarification. Now I understand your idea... but I tried to query Pizza ontology (from Protege4): "prefix rdf:...
Alexander Sidorov
alexidsa@...
May 14, 2009 3:18 pm
1040
Do you have a link to that ontology? something that doesn't require installing protégé? I could take a look and see why the inference isn't occurring. It's...
Sometimes there are GUID values in SparQL-query results (there are no such values in ontology). What do these GUIDs mean?...
Alexander Sidorov
alexidsa@...
May 15, 2009 5:20 am
1042
guid:_.... is how blank nodes are stored in Intellidimensions products. If you serialize a datasource to RDF/XML or any other format those values will be...
Today I made a stress test to Semantics.SDK and Jena+Pellet using NCI Thesaurus ontology. The task was to load the ontology and execute one SparQL query. ...
Alexander Sidorov
alexidsa@...
May 15, 2009 7:27 am
1044
As I know rule-based reasoners (in contrary to semantic tableu-based reasoners) can make multithread reasoning (Owlim is a good example of such an approach)....
Alexander Sidorov
alexidsa@...
May 15, 2009 4:00 pm
1045
We don't really have any numbers like that - other than some lubm w/inference results done against an earlier version of our product. The nci ontology is...
In our system, a query and rules is compiled into a set of operations against sets of tuples. Those operations are separated into layers by the compiler -...
Yes. The software development kit also is entangled with queries and rules. This is not the case with RDF Gateway repository. So where as there are things...
Paul Prueitt
psp@...
May 15, 2009 5:57 pm
1048
Hi Alexander, I took a look at the pizza ontology. You're right that we will miss inferences in that ontology and you're right that it has to do with ...
We are trying to connect the Intellidimension triplestore service so that it can use the Azure SQL service. Has anyone tried this before? I'm pretty new to...
We did some exploratory datasource work with earlier versions of msft's SSDS (back when they supported just the container/entity model). The result wasn't too...
By default the Semantic.Server assemblies are installed to SQL Server with the 'unrestricted' permission set. Will the assemblies still run if the permission...
The assemblies don't call any external code but do use some clr thread synchronization features which force them to be registered as trusted/unrestricted....
Justin, We are currently using Microsoft's Interactive Media Manager. I am having trouble storing DateTime values in RDF and it appears to be related to...
Hi, I am trying to use RdfEntity and am having some problems. Basically, I am trying to create an EntityModel using the RdfEntity regression testing code...
Mark Colquhoun
Mark.Colquhoun@...
Jul 3, 2009 3:26 am
1057
Hi Mark, Sorry, just got a chance to look at this. I took your test project, changed the connection string to something that worked on my machine, and ran it....
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