- From: Antoine Zimmermann <antoine.zimmermann@emse.fr>
- Date: Thu, 29 Nov 2018 00:12:43 +0100
- To: Ivan Herman <ivan@w3.org>, David Booth <david@dbooth.org>
- Cc: semantic-web <semantic-web@w3.org>
Gentlemen,
"Aiden Hogen"@en-US-David-Booth
owl:sameAs "Aiden"@en-HU-Ivan-Herman
owl:sameAs "Aidan Hogan"@en-IE .
There you have it: literals in subject position, weird reasoning on
language-tagged strings, owl:sameAs, and quints.
--The typographical error policeman.
On 26/11/2018 10:18, Ivan Herman wrote:
>
>
>> On 26 Nov 2018, at 07:26, David Booth <david@dbooth.org
>> <mailto:david@dbooth.org>> wrote:
>>
>> On 11/24/18 6:50 AM, Hugh Glaser wrote:
>> > And no, I don't want a Blank Node for [a location that has
>> > labels] - the system that generates this should create a URI
>> > if it doesn't already have one ;-)
>>
>> I like this line of thought. I would much rather have auto-generated
>> URIs, that are predictable and distinguishable as auto-generated, than
>> blank nodes. And even better, those auto-generated URIs could be
>> generated using a standard algorithm, so that all tools would generate
>> them the same way.
>>
>> As Aiden Hogen et all point out in "Everything You Always Wanted to
>> Know About Blank Nodes": "the vast majority of blank nodes form tree
>> structures", i.e., they do not contain blank node cycles.
>> http://www.websemanticsjournal.org/index.php/ps/article/download/365/387
>>
>> If blank node cycles were prohibited in RDF, then predictable URIs
>> could be automatically generated for those blank nodes, bottom-up
>> recursively based on the tree structure. And prohibiting blank node
>> cycles would not be a huge loss, because even the few cases that do
>> use blank node cycles could be brought into conformance by replacing a
>> few of the blank nodes with URIs, to break the cycles.
>
> It also means that the problem of canonicalization/signature/etc would
> become way easier. The algorithms that I referred to in[1] are getting
> complicated due to those b-node cycles (I hope that Aiden, if he reads
> this, agrees with me). They would be way simpler if this restrictions
> was in place.
>
> I.
>
>
> [1] https://lists.w3.org/Archives/Public/semantic-web/2018Nov/0070.html
>
>
>
>>
>> David Booth
>>
>
>
> ----
> Ivan Herman, W3C
> Publishing@W3C Technical Lead
> Home: http://www.w3.org/People/Ivan/
> mobile: +31-641044153
> ORCID ID: https://orcid.org/0000-0003-0782-2704
>
Received on Wednesday, 28 November 2018 23:13:10 UTC