Re: SPARQL working group - call for suggested features

[Chabot Bernard]

Hello, 

I would like to suggest a feature allowing a recursive research in a RDF graph.

For example if my graph describe a hierarchic BOM (Bill of Material) linking "Part" instances together through a "has_part" predicat

and each "Part" linked with "Document" instances through a "documented_by" predicat

How to retrieve :

   - All the "Document" linked to one given "Part" and all the "Document linked to the sub-parts of this given "Part" ?

Motivation : 

It is a very frequent question in the PLM area (Product Lifecycle Management) !

Regards,

Bernard

On Wed, Mar 4, 2009 at 8:11 PM, CHB <chabot.bernard@...> wrote:

 

 

Sent to you by CHB via Google Reader:

 

 

SPARQL working group - call for suggested features

via W3C Semantic Web Activity News by Lee Feigenbaum on 03/03/09

The SPARQL Working Group has started up and is beginning its work by gathering potential features to extend the SPARQL language, protocol, results format, and/or general SPARQL landscape.

We invite all members of the community to suggest features/extensions to SPARQL that you find most important. To contribute, please do the following:

1. Check the list of existing feature suggestions to make sure your suggestion has not already been recorded.
2. Send email to public-rdf-dawg-comments@... with your suggestion, including this information:
   • A description of the feature
   • An example of the feature in action (e.g. sample syntax, sample HTTP requests, sample XML documents, ...)
   • Information on existing implementations of the feature
   • Motivating use cases for the feature (i.e. why do you find it important?)

Please note that due to time and resource constraints, the SPARQL Working Group expects to accept for further work only a small fraction of the total number of features considered. The Working Group does not expect to respond directly to all submitted feature suggestions.

The Working Group is pursuing an aggressive schedule. Please submit suggestions by Tuesday, March 10, 2009.

 

 

Things you can do from here:

• Subscribe to W3C Semantic Web Activity News using Google Reader
• Get started using Google Reader to easily keep up with all your favourite sites

 

 

--
Bernard Chabot
PLM Consultant
PCO Innovation
06.85.19.42.51

[Orri Erling]

Some parts of this message have been removed. Learn more about Nabble's security policy.

 

 

 

 

 

Hi

 

This would be done as

 

select ?part ?doc  where { <assemblye123> <has_part> part option (transitive, t_distinct) . ?part  <has_doc> ?doc }

 

in Virtuoso 6.

 

I think it would be

 

<assembly123> <has_part> * ?part instead of the transitive patter in Arq.  The idea is the same, the supported switches are different.

 

Orri

 

 

 

 

 

 

---

From: public-rdf-dawg-comments-request@... [mailto:public-rdf-dawg-comments-request@...] On Behalf Of Chabot Bernard
Sent: Wednesday, March 11, 2009 10:36 AM
To: public-rdf-dawg-comments@...
Subject: Re: SPARQL working group - call for suggested features

 

Hello, 

 

I would like to suggest a feature allowing a recursive research in a RDF graph.

 

For example if my graph describe a hierarchic BOM (Bill of Material) linking "Part" instances together through a "has_part" predicat

and each "Part" linked with "Document" instances through a "documented_by" predicat

 

How to retrieve :

   - All the "Document" linked to one given "Part" and all the "Document linked to the sub-parts of this given "Part" ?

 

Motivation : 

It is a very frequent question in the PLM area (Product Lifecycle Management) !

 

Regards,

 

Bernard

 

 

On Wed, Mar 4, 2009 at 8:11 PM, CHB <chabot.bernard@...> wrote:

 

 

 

Sent to you by CHB via Google Reader:

 

 

SPARQL working group - call for suggested features

via W3C Semantic Web Activity News by Lee Feigenbaum on 03/03/09

 

The SPARQL Working Group has started up and is beginning its work by gathering potential features to extend the SPARQL language, protocol, results format, and/or general SPARQL landscape.

We invite all members of the community to suggest features/extensions to SPARQL that you find most important. To contribute, please do the following:

1. Check the list of existing feature suggestions to make sure your suggestion has not already been recorded.
2. Send email to public-rdf-dawg-comments@... with your suggestion, including this information:

• A description of the feature
• An example of the feature in action (e.g. sample syntax, sample HTTP requests, sample XML documents, ...)
• Information on existing implementations of the feature
• Motivating use cases for the feature (i.e. why do you find it important?)

Please note that due to time and resource constraints, the SPARQL Working Group expects to accept for further work only a small fraction of the total number of features considered. The Working Group does not expect to respond directly to all submitted feature suggestions.

The Working Group is pursuing an aggressive schedule. Please submit suggestions by Tuesday, March 10, 2009.

 

 

 

Things you can do from here:

• Subscribe to W3C Semantic Web Activity News using Google Reader
• Get started using Google Reader to easily keep up with all your favourite sites

 

 

--
Bernard Chabot
PLM Consultant
PCO Innovation
06.85.19.42.51