Re: [Bigdata-developers] Inference and Quads

[Bryan T. <br...@sy...>]

Jürgen,

Let me add that we are interested in usage patterns for quads with inference.  
For example, would you stores ontologies in some context(s) and then use other
contexts for managing provenance but always desire entailments over all contexts?

In that case, I believe that quads + inference may be significantly simpler. 

Thanks,
Bryan

> -----Original Message-----
> From: Mike Personick [mailto:mi...@sy...] 
> Sent: Friday, April 30, 2010 3:41 PM
> To: Jürgen Jakobitsch; big...@li...
> Subject: Re: [Bigdata-developers] Inference and Quads
> 
> Jurgen,
> 
> The answer to inference with quads really lies in full 
> query-time inference, which we do not yet support.  We have 
> sketchy plans to work on query-time inference later this year 
> after attending to several other priorities, most notably the 
> high-availability architecture for scale-out.
> 
> The problem with quad inference is that supports for inferred 
> statements can exist in different contexts, and it is not 
> known until query which contexts can be considered.  Our 
> model right now is to compute most inferences at load time.  
> So if we compute inferences using supports from different 
> contexts, we would have to filter out query results based on 
> whether they are supported by the specific contexts listed in 
> the query.
> 
> Thanks,
> Mike
> 
> 
> -----Original Message-----
> From: Jürgen Jakobitsch [mailto:jak...@pu...]
> Sent: Wednesday, April 28, 2010 1:55 AM
> To: big...@li...
> Subject: [Bigdata-developers] Inference and Quads
> 
> hi,
> 
> can you tell, when there will inference support with the quad store.
> 
> we're currently starting development of the next version of 
> out thesaurus management tool poolparty (poolparty.punkt.at) 
> and are further evaluating triple stores.
> but we have a significant need for the combination of quads 
> and inference.
> 
> wkr turnguard.com/turnguard
> 
> 
> --
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> Jürgen Jakobitsch
> Codeography
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