Linked Data. Oo, that's a tricky one. I suppose it might be, like data,
that's, erm, linked.
I don't mean to trivialise, such questions should always be asked. The Web
has turned out to be rather a complicated system. But it mostly works
through simplicity, isn't that hard to conceive of a link
A proposed mini-convention for giving SPARQL endpoints an I'm Feeling
Lucky option and hence supporting things like WebFinger.
Take a query like:
SELECT DISTINCT ?blog WHERE {
?person foaf:name James Snell .
?person foaf:weblog ?blog .
}
LIMIT 1
If I'm asking something like that, then
PS. A better name might be Optimistic SPARQL (and it should probably
return a 404 if the query doesn't return a suitable pattern).
On 29 March 2012 14:18, Danny Ayers danny.ay...@gmail.com wrote:
A proposed mini-convention for giving SPARQL endpoints an I'm Feeling
Lucky option and hence
This seems an appropriate place for me to drop in my 2 cents.
I like the 303 trick. People that care about this stuff can use it
(and appear to be doing so), but it doesn't really matter too much
that people that don't care don't use it. It seems analogous to the
question of HTML validity. Best
I'm not sure the 80% demographic for linked data is getting enough
attention. So how about this -
We have :
a) timbl's definition of linked data [1]
and it seems reasonable to assume that :
b) most developers using APIs aren't that familiar with RDF
c) JSON is popular with these developers
On 18 August 2011 02:37, Giovanni Tummarello
giovanni.tummare...@deri.org wrote:
Hi Danny,
i liked sparallax a lot, problem is its hard to maintain. David didnt
upgrade parallax any longer and the intern who did the sparql to MQL
conversion that allows sparallax to operate on sparql is now
Nice work!
Due to requirements of query functionalities and aggregates, Sparallax
currently only works on Virtuoso SPARQL endpoints. (do other
triplestores have aggregates? if so please let us know and we'll try
to support other syntaxes as well)
Which aggregate functions are needed?
ARQ has
[cc'ing public-lod@w3.org, this all seems to be drifting a little
beyond JSON scope - see [1], [2], [3] ]
LD meaning Labeled and Directed for JSON-LD works for me too.
But I don't see a problem with defining linked data as being all-URIs
(fully grounded, no bnodes or literals) just for spec
On 20 June 2011 10:51, Kingsley Idehen kide...@openlinksw.com wrote:
On 6/20/11 8:31 AM, Henry Story wrote:
Perhaps it can become mythical. The URL should be by now:-)
The URI :-)
The mythical URI, perfect.
--
http://danny.ayers.name
On 19 June 2011 20:42, Henry Story henry.st...@bblfish.net wrote:
Ok. So you need to give each of your dogs and cats a webid enabled RDFID chip
To inject a little reality: Sashapooch has got an embedded RFID (not
yet RDFID!) tag, not sure but I think it became Italian law.
Basilhound being a
Point taken, I forget where I am sometimes, will try harder. My apologies.
On 19 June 2011 21:06, Nathan nat...@webr3.org wrote:
Danny Ayers wrote:
I feel very guilty being in threads like this. Shit fuck smarter people
than
me.
Just minor, and I can hardly talk as I swear most often
is a bad idea. It won't.
Pat
On Jun 18, 2011, at 1:51 PM, Danny Ayers wrote:
On 17 June 2011 02:46, David Booth da...@dbooth.org wrote:
I agree with TimBL that it is *good* to distinguish between web pages
and dogs -- and we should encourage folks to do so -- because doing so
*does* help
On 19 June 2011 12:37, Henry Story henry.st...@bblfish.net wrote:
[snip pat]
The way to do this is to build applications where this thing matters. So for
example in the social web we could build
a slightly more evolved like protocol/ontology, which would be
decentralised for one, but would
I thought forever that if we see iniquities we are duty-bound to stand
in the way.
But that don't seem to change anything.
Let the crap rain forth, if you really need to make sense of it the
blokes on this list will do it.
Activity is GOOD, no matter how idiotic.
Decisions made on very
can understand.
The Myers-Briggs thing is intuitively rubbish. But with only one or
two posts in the ground, it does seem you can extrapolate.
On 19 June 2011 19:52, Henry Story henry.st...@bblfish.net wrote:
On 19 Jun 2011, at 19:44, Danny Ayers wrote:
I am of the view that this has been
On 16 June 2011 22:39, Pat Hayes pha...@ihmc.us wrote:
Not only do I not follow your reasoning, I don't even know what it is you are
saying. The document is a valid *representation* of the car, yes of course.
That's all that's necessary to square this circle.
But as valid as the car itself?
On 17 June 2011 02:46, David Booth da...@dbooth.org wrote:
I agree with TimBL that it is *good* to distinguish between web pages
and dogs -- and we should encourage folks to do so -- because doing so
*does* help applications that need this distinction. But the failure to
make this
On 13 June 2011 07:52, Pat Hayes pha...@ihmc.us wrote:
OK, I am now completely and utterly lost. I have no idea what you are saying
or how any of it is relevant to the http-range-14 issue. Want to try running
it past me again? Bear in mind that I do not accept your claim that a
description
Awesome rant Richard!
I think this bit would work better live :
I want to tell the publishers of these web pages that they could join the web
of data just by adding a few @rels to some as, and a few @properties to
some spans, and a few @typeofs to some divs (or @itemtypes and
@itemprops).
On 14 June 2011 10:49, Richard Cyganiak rich...@cyganiak.de wrote:
On 13 Jun 2011, at 20:51, David Booth wrote:
http://richard.cyganiak.de/
a foaf:Document;
dc:title Richard Cyganiak's homepage;
a foaf:Person;
foaf:name Richard Cyganiak;
owl:sameAs http://twitter.com/cygri;
On 15 June 2011 18:30, Pat Hayes pha...@ihmc.us wrote:
Boy, that is a humdinger of a non-sequiteur. Given that HTTP has flexibility,
it is OK to identify a description of a thing with the actual thing? To me
that sounds like saying, given that movies are projected, it is OK to say
that
On 16 June 2011 02:26, Pat Hayes pha...@ihmc.us wrote:
If you agree with Danny that a description can be a substitute for the thing
it describes, then I am waiting to hear how one of you will re-write
classical model theory to accommodate this classical use/mention error. You
might want to
On 12 June 2011 01:51, Pat Hayes pha...@ihmc.us wrote:
On Jun 11, 2011, at 12:20 PM, Richard Cyganiak wrote:
...
It's just that the schema.org designers don't seem to care much about the
distinction between information resources and angels and pinheads. This is
the prevalent attitude
On 12 June 2011 16:26, Richard Cyganiak rich...@cyganiak.de wrote:
Hi Pat,
On 12 Jun 2011, at 00:33, Pat Hayes wrote:
Nothing is gained from the range assertions. They should be dropped.
They capture a part of the schema.org documentation: the “expected type” of
each property. That part of
(there will be some isomorphism between a thing and a description of a
thing, right?
Absolutely not. Descriptions are not in any way isomorphic to the things they
describe. (OK, some 'diagrammatic' representations can be claimed to be, eg
in cartography, but even those cases don't stand up
On 13 June 2011 02:28, Pat Hayes pha...@ihmc.us wrote:
Next point: there can indeed be correspondences between the syntactic
structure of a description and the aspects of reality it describes.
That is what I was calling isomorphism (which I still don't think was
inaccurate). But ok, say there
(Not sure which list is most appropriate - please advise)
I'm getting a lot of errors querying against:
http://www4.wiwiss.fu-berlin.de/factbook/sparql
while some queries work, e.g.
PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema#
SELECT DISTINCT ?s WHERE {
?s rdfs:label ?label .
FILTER
It's not hard to find reasons to be cynical about Google's move,
mostly around the potential for them to make Freebase their own in the
sense of hiding it within their infrastructure and only exposing
proprietary, user-oriented interfaces - the temptation for Google to
improve aspects of the
I've been studiously avoiding this rat king of a thread, but just on
this suggestion:
On 2 July 2010 11:16, Reto Bachmann-Gmuer reto.bachm...@trialox.org wrote:
...
Serialization formats could support
Jo :nameOf :Jo
as a shortcut for
[ owl:sameAs Jo; :nameOf :Jo]
and a store could
On 6 July 2010 13:34, Nathan nat...@webr3.org wrote:
Danny Ayers wrote:
:Jo rdfs:value Jo
together with
:Jo rdf:type rdfs:Literal
?
1: is there and rdfs:value? (rdf:value)
My mistake, it is rdf:value
2: I would *love* to see rdf:value with a usable tight definition that
everybody
On 3 April 2010 00:53, Nathan nat...@webr3.org wrote:
Hi All,
Any guidance on using predicates in linked data / rdf which do not come
from rdfs/owl. Specifically I'm considering the range of:
http://www.iana.org/assignments/relation/*
Can't find a URL that resolves there
such as edit,
One fact there's no avoiding, the service works! Bravo Denny.
Compelling paper, although more scenarios would be good.
My cousin told me about a cow being stuck in the village post office
this morning, and in both cases things seemed interesting, and
potentially useful towards Web serendipity.
On 14 March 2010 20:04, Toby Inkster t...@g5n.co.uk wrote:
I use something like:
OPTIONAL {
?subject ?labelprop ?label .
GRAPH http://buzzword.org.uk/2009/label-properties {
?labelprop a
http://buzzword.org.uk/2009/label-properties#LabelProperty .
On 13 March 2010 04:16, Axel Rauschmayer a...@rauschma.de wrote:
Thanks for any comments or suggestions...
I'm a little perturbed that you have to use something so convoluted to
get labels
Why not something just like (whatever graph) SELECT ?o WHERE { ?s
rdfs:label ?o } , or at worse an
On 10 March 2010 18:19, Paul Houle ontolo...@gmail.com wrote:
head xmlns=http://www.w3.org/1999/xhtml;
xmlns:dcterms=http://purl.org/dc/terms/;
meta rel=dcterms:creator content=Ataru Morobishi
/head
...
This does bend the XHTML/RDFa standard and also HTML a little (those
namespace
I worry that discarding profile URIs may cause problems further down the
line. The cost of keeping it in the spec is virtually zero - ignore usually.
We know that things like URI-based extensibitlies work, dereference for more
info, having a profile URI leaves the window open for e.g. a
PS.
http://www.w3.org/DesignIssues/LinkedData.html
On 17 February 2010 12:00, Danny Ayers danny.ay...@gmail.com wrote:
For a definition of Linked Data I'd suggest anything that conforms to
timbl's Linked Data expectations:
1. Use URIs as names for things
2. Use HTTP URIs so that people
For a definition of Linked Data I'd suggest anything that conforms to
timbl's Linked Data expectations:
1. Use URIs as names for things
2. Use HTTP URIs so that people can look up those names.
3. When someone looks up a URI, provide useful information, using
the standards (RDF, SPARQL)
In defence of Ying Ding, mapping out the academic citation material is
worthwhile, but I do tend to agree with Dan and Jeremy in that it's
only part of the picture (and almost certainly not the major part).
While I could have a good old rant about the role played by
enthusiastic amateurs (which
Irrespective, don't you think HTML or even better an RDF (re. your data
sources) would be sort of congruent with this entire effort? Dan and others
could have just slotted URIs into the RDF etc.. and the resource could just
grow and evenly rid itself of its current contextual short-comings
On 29 January 2010 00:31, Nathan nat...@webr3.org wrote:
I have got one kind of big question; why not just be more verbose and
include full URIs? if it ensures that the data is always perfect and
full abstracted from the notion of HTTP (touchy subject?)[1] then why
not do it?
Including an
2009/12/14 Richard Light rich...@light.demon.co.uk:
In message c74badc3.20683%t.hamm...@nature.com, Hammond, Tony
t.hamm...@nature.com writes
Normal developers will always want simple.
Surely what normal developers actually want are simple commands whereby data
can be streamed in, and
Jeni, marvellous that you're working on this, and marvellous that
you've thought this through an awful lot already.
I can't offer any real practical suggestions right away (a lot to
digest here!) but one question I think right away may some
significance: you want this to be friendly to normal
Hi Nathan,
A good question, the way it gets answered as far as I can see depends
on what you're after.
Glad to see you're thinking linked data.
But people really do try to overthink it when it comes to ontologies,
in my opinion: ideally the best ontologies/vocabs will win -
- rubbish.
The
Good man, I couldn't help thinking there was a paper in that...
2009/11/22 Herbert Van de Sompel hvds...@gmail.com:
hi all,
(thanks Chris, Richard, Danny)
In light of the current discussion, I would like to provide some
clarifications regarding Memento: Time Travel for the Web, ie the idea
2009/11/22 Richard Cyganiak rich...@cyganiak.de:
On 20 Nov 2009, at 19:07, Chris Bizer wrote:
[snips]
From a web architecture POV it seems pretty solid to me. Doing stuff via
headers is considered bad if you could just as well do it via links and
additional URIs, but you can argue that the
2009/11/14 Simon Reinhardt simon.reinha...@koeln.de:
I definitely think it's useful for Linked Data purposes, just like
owl:sameAs, IFPs and everything that Allemand and Hendler describe as
RDFS-Plus (although they don't include owl:differentFrom in that).
Yeah, certainly worth investigating
Good stuff!
cc'ing Ian who has worked on this kind of stuff for a while.
My paternal grandfather made a huge tree, did a load of research (Boy
Scout until age of 65). Quite recently I tried to explain to my mother
how this was interesting...not quite sure what she had to hide :)
But this is
Many thanks for responses, stuff to think about.
Yihong got to /root of my question, ...miss the main purpose why we
want to have data linked in the first place
why are places like itsy, youtube and redtube (yup, pr0n still lives)
more compelling, given what we know?
people *are* getting the
2009/9/25 Kjetil Kjernsmo kje...@kjernsmo.net:
On Friday 25. September 2009 10:15:34 you wrote:
sorry if I sound negative, I reckon the semweb is a done deal now, the
many-eyeballs arrived.
Thanks for asking the right questions, Danny, I believe it is critical for
the success that someone
2009/9/25 Juan Sequeda juanfeder...@gmail.com:
Linked Data is out there. Now it's time to develop smart (personalized)
software agents to consume the data and give it back to humans.
I don't disagree, but I do think the necessary agents aren't smart,
just stupid bots (aka Web services a la
...
best
Leo
It was Danny Ayers who said at the right time 24.09.2009 09:59 the following
words:
The human reading online texts has a fair idea of what is and what
isn't relevant, but how does this work for the Web of data? Should we
have tools to just suck in any nearby triples, drop them
2009/9/16 Norman Gray nor...@astro.gla.ac.uk:
Ooops, sorry. I've sent the comments off to their proper place.
ditto
--
http://danny.ayers.name
Thanks Raphaël - great stuff! I very much like the 5 aspects (though
visually it's begging for a 6th - not that I can think of one :)
2009/9/15 Raphaël Troncy raphael.tro...@cwi.nl:
http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData/
The W3C acknowledge the value of
It seems I have a Wikipedia page in my name (ok, I only did fact-check
edits, ok!?). So tonight I went looking for the corresponding triples,
looking for my ultimate URI...
Google dbpedia = front page, with news
on the list on the left is Online Access
what do you get?
[[
The DBpedia data set
http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData/
The W3C acknowledge the value of this stuff, no? So shouldn't it be
available (via redirect or whatever) from somewhere more like :
http://w3.org/lod
??
--
http://danny.ayers.name
I'm after an RDF dump so I can get client country from IP address.
There's a source for the raw data at :
http://www.ipinfodb.com/ip_database.php
but if someone's already converted such stuff it'll save me time.
Also, what would be my best bet for mapping country codes (US etc)
to the
2009/7/29 Pat Hayes pha...@ihmc.us:
Indeed. However, it suffers from one glaring defect, which may simply be a
problem of documentation: i does not explain its terms.
Documentation is a pretty common problem...
In particular, it
refers to a 'factor' of an event, without anywhere saying
Chipping in a little late - yep, this really is excellent news.
E-commerce was a huge driver for the Web (/me sidesteps the bust),
there's every reason it could be a shot in the arm for the semweb too.
Also the lure of shopkeeper $$$s makes this kind of thing great
pedagogical material - note
2009/7/2 Bill Roberts b...@swirrl.com:
I thought I'd give the .htaccess approach a try, to see what's involved in
actually setting it up. I'm no expert on Apache, but I know the basics of
how it works, I've got full access to a web server and I can read the online
Apache documentation as well
2009/7/2 Linde, A.E. ae...@leicester.ac.uk:
Could someone summarise this thread in a single (unbiased?) post, please?
I'll try to answer the questions, even though I've only skimmed the thread...
a) what is/are the blocks on LOD via RDF
The vast majority of publication tools and supporting
Thank you for the excellent questions, Bill.
Right now IMHO the best bet is probably just to pick whichever format
you are most comfortable with (yup it depends) and use that as the
single source, transforming perhaps with scripts to generate the
alternate representations for conneg.
As far as
2009/6/24 Ivan Herman i...@w3.org:
With the
increasing popularity of RDFa our system guys have already complained
about sudden server request surges on that service. Ie, although it is
fine to use the service as it is in the .htaccess example (with full
URI-s, though) if you (or anybody
While we could have countless arguments over the appropriateness of DL
(or OWL 2) in the Web environment, the bottom line is whether or not
owl:imports adds useful information - seems hard to see a problem with
that, whether agents can reason or not. The follow your nose thing.
What's the problem
2009/6/24 Ivan Herman i...@w3.org:
Unfortunately, no:-(
concise, but to the point, thanks :)
--
http://danny.ayers.name
Ivan, two words : more python!
2009/6/24 bill.robe...@planet.nl:
Ivan
Thanks very much. I'll take a look at your python scripts, which should be
very useful.
Cheers
Bill
Van: Ivan Herman [mailto:i...@w3.org]
Verzonden: wo 24-6-2009 9:14
Aan: Bill
2009/6/25 Ian Davis li...@iandavis.com:
I think the onus is on the consumer to ensure they abide with the supplier's
wishes, not the other way round. It's really a matter or respect and
politeness to give people the credit they ask for.
Certainly in principle, but the supplier should know
2009/6/18 Bernard Vatant bernard.vat...@mondeca.com:
- The date seems to me a very important piece of information, in particular
if you look at tags from the vocabulary management, and/or search engines
viewpoint. First, labels change more often than concepts, and second, a
search engine
I heard about this elsewhere (?) - I personally think it's hugely
significant. Commerce means a lot to a lot of people, this is
mainstreaming. Bravo!
2009/6/8 Martin Hepp (UniBW) h...@ebusiness-unibw.org:
Hi all:
Good news:
Bestbuy.com goes Semantic Web the GoodRelations Way
Hi Luciano,
There are also a few online tools that will do the conversion, offhand
I can only remember http://triplr.org
e.g.
http://triplr.org/ntriples/www.w3.org/People/Berners-Lee/card.rdf
Cheers,
Danny.
--
http://danny.ayers.name
2009/6/3 Hugh Glaser h...@ecs.soton.ac.uk:
We are pleased to offer http://sameas.org/ as a service to provide you with
help finding URIs.
Great stuff!
We believe that the Semantic Web and Linked Data need to develop clear,
focussed, services that only do one or two things, so that they can
2009/5/31 Dan Brickley dan...@danbri.org:
Box 1: A journey exploring information about presidents, their kids and
their education...
box 1.1: All things that are US presidents
box 1.2: All things that are children of things in bag_1.1
box 1.3: All things that are educational institutions,
2009/2/23 Dan Brickley dan...@danbri.org:
Having these associations is still great, so thanks for all the work putting
this together. I'd suggest making up a custom relationship name for now to
link from a class to a related Wordnet synset.
I thought maybe SKOS [1] might have a suitable term,
2009/1/27 Jun Zhao jun.z...@zoo.ox.ac.uk
Our projects have been supporting the needs from users who have little or
no techy background. They quite buy the idea of Semantic Web, for making it
easier to mash up datasets, technically speaking. However, we are still
looking for compelling cases
Somewhat late, but maybe useful for someone:
At the Italian semweb conference SWAP 2008 [1] I did a tutorial, about
15-20 attendees.
The first half, a presentation was straightforward and I think
functional, I used a cut-down tweaked version [2] of the slides
ChrisB co. used in Karlsruhe.
PS. The mighty capable organizers, Aldo and Valentino, got an art
exhibition co-located with the conference. Getting a bit of culture in
there was brilliant :-)
2009/1/23 Danny Ayers danny.ay...@gmail.com:
Somewhat late, but maybe useful for someone:
At the Italian semweb conference SWAP 2008
eeek!
s/Valentino/Valentina
2009/1/23 Danny Ayers danny.ay...@gmail.com:
PS. The mighty capable organizers, Aldo and Valentino, got an art
exhibition co-located with the conference. Getting a bit of culture in
there was brilliant :-)
2009/1/23 Danny Ayers danny.ay...@gmail.com:
Somewhat
2009/1/23 Juan Sequeda juanfeder...@gmail.com:
Hi Danny
Thanks for the info. Could you tell me who were the attendees? I mean, were
they already knowledgeable about LD and Semantic Web?
I asked who had a FOAF profile and nobody raised their hand (although
at least one person did, to my
2009/1/21 Olaf Hartig har...@informatik.hu-berlin.de:
Does someone know a study that investigates whether people from different
communities know about linked data and are aware of the benefits?
I've not seen anything, but if the W3C has resources for another
Education and Outreach group in
2008/12/7 Sw-MetaPortal-ProjectParadigm [EMAIL PROTECTED]:
The next Internet giant company will be linking open data and providing open
access to repositories, in the process seamlessly combining both paid for
subscriptions, Creative Commons or similar license based or open source
software
Abstract looks excellent, though personally I'd drop the hypens ('-').
Now to read a paper!
2008/12/8 Marko A. Rodriguez [EMAIL PROTECTED]:
Hi all,
Here is a short column that I wrote that is in line with this thread of
thought:
http://arxiv.org/abs/0807.3908
It addresses the importance
2008/11/29 François Scharffe [EMAIL PROTECTED]:
Hi Michael,
Michael Hausenblas wrote:
Francois,
Thanks for your feedback and the question. Though I'm not sure what you
technically mean with 'my:links is a named graph' :)
ditto
The system output the links in a named graph. See the
%=profanity /%
or something - cool thread
while I disagree with many of Aldo's individual points, getting them
surfaced is really positive
in response to a line from the firestarter:
The only reason anyone can afford to offer a SPARQL endpoint is because it
doesn't get used too much?
while my
Hi LODites,
I'm going to be doing a tutorial at the SWAP conference in Rome on
15th Dec (main conf is 16th-17th, http://www.swapconf.it/2008/ ).
Provisional title is Publishing Linked Data on the Semantic Web: how
and why?.
I have my own thoughts about what to do (naturally ;-) but would very
2008/11/14 Andreas Blumauer [EMAIL PROTECTED]:
Dear Danny, dear LODites,
since I´m presenting LOD/Semweb Ideas/Methods etc. since years rather for
non-Semweb people, e.g. for traditional IT-specialists or Web 2.0 folks,
I have developed some slides recently for this audience:
2008/11/14 Yves Raimond [EMAIL PROTECTED]:
Hi Danny!
Hi Yves!
We plan to publish, with Keith, a small how-to for doing a hands-on
tutorial like the Web-of-data 101 session we did at the WOD-PD event.
With Richard's permission, we'll also take a few things from his
session, where he used
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