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Re: Explain profile acronyms

From: Pascal Hitzler <hitzler@aifb.uni-karlsruhe.de>
Date: Mon, 03 Aug 2009 22:51:20 +0200
Message-ID: <4A774DC8.2030603@aifb.uni-karlsruhe.de>
To: Sandro Hawke <sandro@w3.org>
CC: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>, ian.horrocks@comlab.ox.ac.uk, public-owl-wg@w3.org
I would really stick to the real/historic explanation (EL family). I 
understand that it's not directly helpful, but at least it becomes clear 
that there is some reason to it - and in case somebody wants to read up 
on it on the DL literature, he's not lost in the DL acronyms ...

In fact I'll add this to the primer as soon as the wiki is accessible 
again (it currently seems to be down...)


Sandro Hawke wrote:
>> I certainly see no problem with adding some minor explanatory text
>> along these lines.
> It seems good to me, too, except for the EL explanation.  The reference
> to EL++ doesn't help anyone.  (If you know about EL++, you don't need
> the explanation; if you don't know about EL++, then knowing the
> association doesn't help.)
> So where does the "E" come from?  I guess it's from "Existential
> Restrictions"...  That doesn't help very much here.  Maybe we can
> propose a mnemonic?  "Extensive", "Efficient", "Easy", "Economical",
> "Enormous", "Elephantine"...  :-)
> Maybe something like:
>    - The EL profile was orginally named for its use of Existential
>      restrictions, but for a mnemonic, we note that it supports
>      Efficient reasoning, even with Enormous ontologies.
> ... or something like that.
>      -- Sandro
>> From: Ian Horrocks <ian.horrocks@comlab.ox.ac.uk>
>> Subject: Re: Explain profile acronyms
>> Date: Mon, 3 Aug 2009 11:40:57 -0500
>>> IMHO this is a not completely unreasonable request. I would propose  
>>> to respond by adding to the Introduction of Profiles:
>>> * brief explanations of the acronyms, namely:
>>>    - The EL acronym reflects the profile's basis in the EL family of  
>>> description logics [EL++].
>>>    - The QL acronym reflects the fact that query answering in this  
>>> profile can implemented by rewriting queries into a standard  
>>> relational Query Language.
>>>    - The RL acronym reflects the fact that reasoning in this profile  
>>> can be implemented using a standard Rule Language.
>>> * the statement "Note that each of the profiles is a (strict)  
>>> syntactic subset of OWL DL, but none of the profiles is a subset of  
>>> another."
>>> Comments and/or other suggestions?
>>> Ian
>>>> From: Gioele Barabucci <barabucc@cs.unibo.it>
>>>> Date: Mon, 20 Jul 2009 14:54:08 +0200
>>>> To: public-owl-comments@w3.org
>>>> Message-ID: <20090720125407.GA32507@cs.unibo.it>
>>>> Hello,
>>>> could you please document the meaning of the EL, QL and DL acronyms in
>>>> the overview section of owl2-profiles and other OWL 2 documents?
>>>> Also, could you explicitly state whether an OWL 2 profile is a strict
>>>> subset of another?
>>>> Regards,
>>>> -- 
>>>> Gioele Barabucci <barabucc@cs.unibo.it>

PD Dr. Pascal Hitzler
pascal@pascal-hitzler.de   http://www.pascal-hitzler.de
Semantic Web Textbook: http://www.semantic-web-book.org
Received on Monday, 3 August 2009 20:48:38 UTC

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