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Re: Access to DUL.owl ontology

From: Krzysztof Janowicz <janowicz@ucsb.edu>
Date: Mon, 30 Jan 2017 20:46:47 -0800
To: Kerry Taylor <kerry.taylor@anu.edu.au>, SDW WG Public List <public-sdw-wg@w3.org>, Armin Haller <armin.haller@anu.edu.au>, "Cox, Simon (CESRE, Kensington)" <Simon.Cox@csiro.au>
Message-ID: <3c2e5f1f-cfa7-78f0-2bdf-231b49e95662@ucsb.edu>
> ØBtw, am I correct assuming that 
> http://www.w3.org/2005/Incubator/ssn/XGR-ssn/ 
> <http://www.w3.org/2005/Incubator/ssn/XGR-ssn/> is the proper link to 
> the final report of the incubator group?
>
> Yes. It is harder to find than it used to be as a result of a W3C 
> style change that was applied after the XG finished. 

Great. So how do we deal with section 5.3.1.3.2 Sensors which states 
that 'Sensors are defined as subclasses of physical objects 
(DUL:PhysicalObject).'

'<owl:Class rdf:about="http://purl.oclc.org/NET/ssnx/ssn#Sensor">
    <rdfs:label>Sensor</rdfs:label>
    ...
    <rdfs:subClassOf 
rdf:resource="http://www.loa-cnr.it/ontologies/DUL.owl#PhysicalObject"/>'

Same here: https://www.w3.org/2005/Incubator/ssn/ssnx/ssn#Sensor , i.e., 
in the OWL code.

Our new SSN definition looks different. It is given here: 
http://w3c.github.io/sdw/ssn/#SSNSensor

and here is the DUL alignment:

|### http://www.w3.org/ns/ssn/Sensor <http://www.w3.org/ns/ssn/Sensor> 
rdf:type owl:Class ; rdfs:subClassOf 
<http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Object> . |

So what is the formal relation between new-SSN sensor and old-SSN sensor?

Thank.,
best,
Jano



On 01/25/2017 04:21 AM, Kerry Taylor wrote:
>
> ØMy mail was merely a reaction to your claim that there is no broken 
> link to DUL in the old SSN.
>
> For the record – I never made such a claim.  It was I who put all the 
> work in to ensure there is no broken link in the new ssn, and I am 
> also a victim of the challenge it created in the intervening years.
>
> ØBtw, am I correct assuming that 
> http://www.w3.org/2005/Incubator/ssn/XGR-ssn/ 
> <http://www.w3.org/2005/Incubator/ssn/XGR-ssn/> is the proper link to 
> the final report of the incubator group?
>
> Yes. It is harder to find than it used to be as a result of a W3C 
> style change that was applied after the XG finished.
>
> Please ask Phila for access to change it. He has said that it can be 
> done. That was in a  different context (about redirecting ssn users to 
> the new ssn), but I expect he would be sympathetic in this case too.
>
> Kerry
>
> *From:*Krzysztof Janowicz [mailto:janowicz@ucsb.edu]
> *Sent:* Wednesday, 25 January 2017 11:16 AM
> *To:* Kerry Taylor <kerry.taylor@anu.edu.au>; SDW WG Public List 
> <public-sdw-wg@w3.org>; Armin Haller <armin.haller@anu.edu.au>; Phil 
> Archer <phila@w3.org>; Cox, Simon (CESRE, Kensington) <Simon.Cox@csiro.au>
> *Subject:* Re: Access to DUL.owl ontology
>
> Hi Kerry,
>
> My mail was merely a reaction to your claim that there is no broken 
> link to DUL in the old SSN. If we are allowed to revisit the old SSN 
> and to fix the link, this would be absolutely great and we should try 
> to do this as it leads to problems on a regular basis. If this would 
> need somebody to volunteer to change that link in the final report and 
> ontology, I would be more then happy to do so if it would help all of 
> us. Btw, am I correct assuming that 
> http://www.w3.org/2005/Incubator/ssn/XGR-ssn/ is the proper link to 
> the final report of the incubator group?
>
> Best,
> Krzysztof
>
>
> On 01/24/2017 04:07 PM, Kerry Taylor wrote:
>
>     Krzysztof,
>
>     Are you asking for this working group to go back and edit the
>     final report and/or ontology published by the XG? I understand
>     that is possible under W3 rules but you would need to coordinate
>     with Phil for write access. Would you like to take that update
>     task as an action?
>
>     -Kerry
>
>     *From:*Krzysztof Janowicz [mailto:janowicz@ucsb.edu]
>     *Sent:* Wednesday, 25 January 2017 10:56 AM
>     *To:* Kerry Taylor <kerry.taylor@anu.edu.au>
>     <mailto:kerry.taylor@anu.edu.au>; SDW WG Public List
>     <public-sdw-wg@w3.org> <mailto:public-sdw-wg@w3.org>; Armin Haller
>     <armin.haller@anu.edu.au> <mailto:armin.haller@anu.edu.au>; Phil
>     Archer <phila@w3.org> <mailto:phila@w3.org>; Cox, Simon (CESRE,
>     Kensington) <Simon.Cox@csiro.au> <mailto:Simon.Cox@csiro.au>
>     *Subject:* Re: Access to DUL.owl ontology
>
>         Sure – that refers to the old ssn  of 2012 or so – kindly
>          just point them to the ssn we have published in our WD.
>
>
>     Yes, I always point them to the new version, but that is not the
>     point here. The point is that our official deliverable of the old
>     W3C XG SSN group points to an URI that does not exist anymore and
>     this is why loading in the original SSN ontology that we published
>     leads to an error message and this happens very frequently namely
>     whenever somebody reads our 'Semantic Sensor Network XG Final
>     Report' (https://www.w3.org/2005/Incubator/ssn/XGR-ssn-20110628/)
>     as this points them to the ontology at
>     https://www.w3.org/2005/Incubator/ssn/ssnx/ssn
>     <https://www.w3.org/2005/Incubator/ssn/ssnx/ssn> which imports the
>     DUL URI that does not exist any longer and this has been a problem
>     for a long time and this is what I said in the the call today.
>
>     Best,
>     Krzysztof
>
>
>     On 01/24/2017 03:15 PM, Kerry Taylor wrote:
>
>         Sure – that refers to the old ssn  of 2012 or so – kindly
>          just point them to the ssn we have published in our WD.
>
>         *From:*Krzysztof Janowicz [mailto:janowicz@ucsb.edu]
>         *Sent:* Wednesday, 25 January 2017 8:51 AM
>         *To:* SDW WG Public List <public-sdw-wg@w3.org>
>         <mailto:public-sdw-wg@w3.org>; Taylor, Kerry (ICT Centre,
>         Acton) <Kerry.Taylor@csiro.au> <mailto:Kerry.Taylor@csiro.au>;
>         Phil Archer <phila@w3.org> <mailto:phila@w3.org>; Cox, Simon
>         (CESRE, Kensington) <Simon.Cox@csiro.au>
>         <mailto:Simon.Cox@csiro.au>
>         *Subject:* Fwd: Access to DUL.owl ontology
>
>         See the email below from an SSN user as one example.
>
>
>
>         -------- Forwarded Message --------
>
>         *Subject: *
>
>         	
>
>         Access to DUL.owl ontology
>
>         *Resent-Date: *
>
>         	
>
>         Wed, 17 Aug 2016 17:23:55 +0000
>
>         *Resent-From: *
>
>         	
>
>         public-xg-ssn@w3.org <mailto:public-xg-ssn@w3.org>
>
>         *Date: *
>
>         	
>
>         Thu, 18 Aug 2016 01:22:43 +0800
>
>         *From: *
>
>         	
>
>         Sergio José Rodríguez Méndez <srodriguez@pet.cs.nctu.edu.tw>
>         <mailto:srodriguez@pet.cs.nctu.edu.tw>
>
>         *To: *
>
>         	
>
>         public-xg-ssn@w3.org <mailto:public-xg-ssn@w3.org>,
>         semantic-web@w3.org <mailto:semantic-web@w3.org>
>
>         Hello.
>
>         Currently, I'm working on an ontology definition aligned to
>         Semantic Sensor Network Ontology (SSN)
>         <http://purl.oclc.org/NET/ssnx/ssn>, which, in turn, is
>         aligned to the Dolce Ultra-Lite upper ontology
>         <https://www.w3.org/2005/Incubator/ssn/wiki/SSN_Skeleton#Aligning_the_SSN_Ontology_and_the_core_SSO_design_pattern_with_DOLCE>.
>
>
>         One can see
>         <https://www.w3.org/2005/Incubator/ssn/ssnx/ssn#Module_DUL>
>         that in the SSN ontology spec, the DUL IRI namespace is:
>
>         *http://www.loa-cnr.it/ontologies/DUL.owl*
>
>         However, it seems that this "link is broken", due that the IRI
>         doesn't point the the proper DUL.owl definition.
>
>         I'm trying to see/generate a data model visualization of SSN
>         via the tool WebVOWL (Web-based Visualization of Ontologies)
>         <http://vowl.visualdataweb.org/webvowl.html>.
>
>         For this, I'm following this IRI:
>
>         http://vowl.visualdataweb.org/webvowl/#iri=http://purl.oclc.org/NET/ssnx/ssn
>
>         However, it fails due that it cannot find/retrieve DUL's
>         definition:
>
>         {
>
>         /Could not load imported ontology:
>         &lt;http://www.loa-cnr.it/ontologies/DUL.owl&gt; Cause:
>         Problem parsing http://www.loa-cnr.it/ontologies/DUL.owl/
>
>         /Could not parse ontology./
>
>         }
>
>         Questions:
>
>           * Is there any standard way to handle this "broken link"
>             when aligning to upper ontologies?
>           * Should DUL.owl be fixed?
>           * Should SSN address this situation "somehow"?
>           * If I'm aligning to SSN, how I should address this situation?
>
>         Thank you for your feedback.
>
>
>         /$¡rm
>         Best regards,
>
>         Sergio José Rodríguez Méndez (羅士豪)
>
>         Pervasive Embedded Technologies Laboratory (PET Lab)
>
>         Computer Science Department
>
>         National Chiao Tung University
>
>     -- 
>
>     Krzysztof Janowicz
>
>       
>
>     Geography Department, University of California, Santa Barbara
>
>     4830 Ellison Hall, Santa Barbara, CA 93106-4060
>
>       
>
>     Email:jano@geog.ucsb.edu <mailto:jano@geog.ucsb.edu>
>
>     Webpage:http://geog.ucsb.edu/~jano/ <http://geog.ucsb.edu/%7Ejano/>
>
>     Semantic Web Journal:http://www.semantic-web-journal.net
>
> -- 
> Krzysztof Janowicz
> Geography Department, University of California, Santa Barbara
> 4830 Ellison Hall, Santa Barbara, CA 93106-4060
> Email:jano@geog.ucsb.edu <mailto:jano@geog.ucsb.edu>
> Webpage:http://geog.ucsb.edu/~jano/ <http://geog.ucsb.edu/%7Ejano/>
> Semantic Web Journal:http://www.semantic-web-journal.net


-- 
Krzysztof Janowicz

Geography Department, University of California, Santa Barbara
4830 Ellison Hall, Santa Barbara, CA 93106-4060

Email: jano@geog.ucsb.edu
Webpage: http://geog.ucsb.edu/~jano/
Semantic Web Journal: http://www.semantic-web-journal.net
Received on Tuesday, 31 January 2017 04:47:26 UTC

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