- From: Martynas Jusevičius <martynas@graphity.org>
- Date: Tue, 20 Dec 2016 10:59:25 +0100
- To: Fabio Ricci <fabio.ricci@semweb.ch>
- Cc: Neil McNaughton <neilmcn@oilit.com>, "semantic-web@w3.org" <semantic-web@w3.org>, "public-lod@w3.org" <public-lod@w3.org>
- Message-ID: <CAE35VmxjkkPu5Qy0xqxugYMYkr+quKcBqKOAWHrt5ZWM8EZYew@mail.gmail.com>
The measure and the unit do not have to fit into the same RDF value. You can use a blank node and then use QUDT to encode the unit: [ qudt:unit unit:IN ; qudt:value 8.55 ] http://qudt.org http://qudt.org/vocab/unit/IN Martynas atomgraph.com On Tue, Dec 20, 2016 at 10:40 AM, Fabio Ricci <fabio.ricci@semweb.ch> wrote: > Dear Neil > > thank you for writing, and it seems that I have put a finger on weak spot > … regarding the units subject (sorry!), and thank you for the nice > narration. > Nevertheless I need to point out, that the current lack of units in RDF is > not an inherent problem of RDF, nor it does not require a quad (see below), > but I see it as a temporary (maybe … political?) problem, because W3C seems > to have decided until today *not* to provide units of measure for a value, > as you promptly remarked here. From the representational point of view, > this need would be solved by simply define the unit of measure into the > value type expression like (hypothetically) > > "8.55^^" <http://www.w3.org/2016/XMLSchema#*inches*> or even > "8.55^^" <http://www.oilit.com/2016/XMLSchema#*inches*> > > … having again the triple and not the quad. > > So, please let separate a still incomplete type / units standard > definition from a tool which seems to offer a (currently) unique set of > features around RDF. > > Kind regards / Meilleures salutations / Freundliche Grüsse > *Fabio Ricci* > > semweb > Semantic Web Technologies · Records Management > Software systems · ICT coaching · ICT Projects leading > > *https://semweb.ch* <https://ch.semweb.ch> > > *https://skosshuttle.ch* <https://skosshuttle.ch> > > *https://rdflink.ch* <https://rdflink.ch> > > Weinmanngasse 26 > CH-8700 Küsnacht ZH (Switzerland) > > *Tel.* > > +41 (076) 5281961 <+41%2076%20528%2019%2061> > +39 (389) 0681334 <+39%20389%20068%201334> > > *Skype:* > > *semweb-llc* <http://“#”> > > *Confidentiality Warning*: This message and any attachments are intended > only for the use of the intended recipients, are confidential and maybe > privileged. If you are not the intended recipient, you are hereby notified > that any review, retransmission, conversion to hard copy, copying, > circulation or other use of this message and any attachments is strictly > prohibited. If you are not the intended recipient, please notify the sender > immediately by return email, and delete this message and any attachments > from your system. Thank you. > > On 20 Dec 2016, at 10:02, Neil McNaughton <neilmcn@oilit.com> wrote: > > Fabio, > > That’s not so good for engineering style reasoning as in trying to see if > a valve will fit into a particular place or use. This is a recurring > problem with RDF triple modeling – there are not enough places in a triple > to put all the information you need to qualify a dimension. A *valve* > hasproperty *height* AND inunits *centimeters*. A quad already. > Of course it can be done – but requires more mapping which AKAIK is done > idiosyncratically with every author adopting his/her own approach. > For some (amusing I hope) background to this issue see my March 2004 Oil > IT Journal editorial A Million Miles of Spaghetti are Eaten Every Day > <http://www.oilit.com/2journal/4php/4_rebuild_center_frameset.php?item=load_article&2dyear=04&2dmonth=03&artno=3http://www.oilit.com/2journal/4php/4_rebuild_center_frameset.php?item=load_article&2dyear=04&2dmonth=03&artno=3>. > > > Best regards > Neil McNaughton - @neilmcn <http://www.twitter.com/neilmcn> > Editor and Publisher, Oil IT Journal > Now in its 21st year! > Oil IT Journal is published by The Data Room SARL > 7 Rue des Verrieres > 92310 Sevres, France > Cell - +336 7271 2642 <+33%206%2072%2071%2026%2042> > Tel - +331 4623 9596 <+33%201%2046%2023%2095%2096> > info@oilit.com/http://www.oilit.com > <image001.png> <https://www.linkedin.com/pub/neil-mcnaughton/6/498/243> > > > > *From:* Fabio Ricci [mailto:fabio.ricci@semweb.ch <fabio.ricci@semweb.ch>] > > *Sent:* Monday, December 19, 2016 7:47 PM > *To:* Neil McNaughton <neilmcn@oilit.com> > *Cc:* semantic-web@w3.org; public-lod@w3.org > *Subject:* Re: SKOS Shuttle 2.2.6 available as RDF Composer > > In case your question was: "How do I recognise what unit measure the > attributes are” the answer is: > In the current release You have to name the attribute to have the measure > directly in its name, for instance instead of “Diameter” you take > “DiameterInches”. > > Thank you for your question > > Kind regards / Meilleures salutations / Freundliche Grüsse > *Fabio Ricci* > > > *sem**web* > > > > > Semantic Web Technologies · Records Management > Software systems · ICT coaching · ICT Projects leading > *https://semweb.ch* <https://ch.semweb.ch/> > *https://skosshuttle.ch* <https://skosshuttle.ch/> > *https://rdflink.ch* <https://rdflink.ch/> > Weinmanngasse 26 > CH-8700 Küsnacht ZH (Switzerland) > *Tel.* > +41 (076) 5281961 <+41%2076%20528%2019%2061> > +39 (389) 0681334 <+39%20389%20068%201334> > *Skype:* > > *semweb-llc* > > *Confidentiality Warning*: This message and any attachments are intended > only for the use of the intended recipients, are confidential and maybe > privileged. If you are not the intended recipient, you are hereby notified > that any review, retransmission, conversion to hard copy, copying, > circulation or other use of this message and any attachments is strictly > prohibited. If you are not the intended recipient, please notify the sender > immediately by return email, and delete this message and any attachments > from your system. Thank you. > > > On 19 Dec 2016, at 19:43, Fabio Ricci <fabio.ricci@semweb.ch> wrote: > > Diameter and Height are psd:decimal value and is encoded using > https://www.w3.org/TR/xmlschema11-2/#decimal > > So the RDF value will be "8.55"^^<http://www.w3.org/2001/XMLSchema#decimal > > > > Kind regards / Meilleures salutations / Freundliche Grüsse > *Fabio Ricci* > > > > *sem**web* > > > > > Semantic Web Technologies · Records Management > Software systems · ICT coaching · ICT Projects leading > *https://semweb.ch* <https://ch.semweb.ch/> > *https://skosshuttle.ch* <https://skosshuttle.ch/> > *https://rdflink.ch* <https://rdflink.ch/> > Weinmanngasse 26 > CH-8700 Küsnacht ZH (Switzerland) > *Tel.* > +41 (076) 5281961 <+41%2076%20528%2019%2061> > +39 (389) 0681334 <+39%20389%20068%201334> > *Skype:* > > *semweb-llc* > > *Confidentiality Warning*: This message and any attachments are intended > only for the use of the intended recipients, are confidential and maybe > privileged. If you are not the intended recipient, you are hereby notified > that any review, retransmission, conversion to hard copy, copying, > circulation or other use of this message and any attachments is strictly > prohibited. If you are not the intended recipient, please notify the sender > immediately by return email, and delete this message and any attachments > from your system. Thank you. > > > On 19 Dec 2016, at 19:01, Neil McNaughton <neilmcn@oilit.com> wrote: > > “Diameter 8.55” 8.55 what – feet, meters … how do you encode the units? > > Best regards > Neil McNaughton > info@oilit.com > Editor and Publisher, Oil IT Journal > Public website – www.oilit.com > Cell - +336 7271 2642 <+33%206%2072%2071%2026%2042> > > > > *From:* Fabio Ricci [mailto:fabio.ricci@semweb.ch <fabio.ricci@semweb.ch>] > > *Sent:* Monday, December 19, 2016 6:54 PM > *To:* semantic-web@w3.org; public-lod@w3.org > *Subject:* SKOS Shuttle 2.2.6 available as RDF Composer > > Dear Community > > I am proud to announce here that SKOS Shuttle has reached per today a > further degree of maturity. > With Release 2.2.6 SKOS Shuttle permits to create SKOS networks enhanced > as follows: > > 1) Integrating OWL classes at concept level (inherit all OWL class data > properties) > 2) Allowing creation of Custom attributes at concept level according to > values in https://www.w3.org/TR/xmlschema11-2/ > 3) Allowing (symmetrical) Custom Relations to link concepts (finally > allowing special constructs like "part-of”) > 4) Inserting SPARQL-UPDATE stuff (minor feature) in SPARQL tab > 5) Editing coloured RDF statements in the appropriate tab. > > *De facto SKOS Shuttle has become per 2016 an RDF composer.* > See a (really) tiny example in https://skosshuttle.ch/gen/ > images/skspiston.png > > SKOS Shuttle is free to use (inside a fixed resource extent), educational > institutes gets the “silver”Tarif for free. > > Thank you all and have all a nice Christmas Time and a better New Year > 2017! > > Kind regards / Meilleures salutations / Freundliche Grüsse > *Fabio Ricci* > > *sem**web* > > > Semantic Web Technologies · Records Management > Software systems · ICT coaching · ICT Projects leading > *https://semweb.ch* <https://ch.semweb.ch/> > *https://skosshuttle.ch* <https://skosshuttle.ch/> > *https://rdflink.ch* <https://rdflink.ch/> > Weinmanngasse 26 > CH-8700 Küsnacht ZH (Switzerland) > *Tel.* > +41 (076) 5281961 <+41%2076%20528%2019%2061> > +39 (389) 0681334 <+39%20389%20068%201334> > *Skype:* > > *semweb-llc* > > *Confidentiality Warning*: This message and any attachments are intended > only for the use of the intended recipients, are confidential and maybe > privileged. If you are not the intended recipient, you are hereby notified > that any review, retransmission, conversion to hard copy, copying, > circulation or other use of this message and any attachments is strictly > prohibited. If you are not the intended recipient, please notify the sender > immediately by return email, and delete this message and any attachments > from your system. Thank you. > > >
Received on Tuesday, 20 December 2016 09:59:59 UTC