again
if it's the wrong place to ask!
Nathan
Kingsley Idehen wrote:
Nathan wrote:
Hi All,
Apologies if this is the wrong place to ask questions about linked
data; however not sure where else to turn at the minute! and again as
it's quite a long list.
worth noting the following link for most of the following questions:
http
Alexandre Passant wrote:
Hi Nathan,
On 3 Nov 2009, at 18:16, Nathan wrote:
Hi All,
Hoping for a little bit of guidance here on tagging assigning
subjects to content etc - I can't quite grasp how to describe what an
item of content is about; particularly in the context of a normal blog
Toby Inkster wrote:
On Tue, 2009-11-03 at 18:16 +, Nathan wrote:
Hoping for a little bit of guidance here on tagging assigning
subjects to content etc - I can't quite grasp how to describe what an
item of content is about
# TIMTOWTDI
# Here's a few abbreviations for starters...
@prefix
रविंदर ठाकुर (ravinder thakur) wrote:
hello friends,
i am working on some project that needs to take user inputs like what would
be the current population in china and give me back LOD etc URLs that it
can find for the concepts mentioned in the string(eg for wordnet URL for
population
On 09/11/2009 21:47, Aldo Bucchi aldo.buc...@gmail.com wrote:
I found a dataset that represents countries as two letter country
codes: DK, FI, NO, SE, UK.
http://dbpedia.org/resource/ISO_3166-2:DK
http://dbpedia.org/resource/ISO_3166-2:FI
http://dbpedia.org/resource/ISO_3166-2:NO
Bernhard Schandl wrote:
On Nov 12, 2009, at 14:13 , Bernhard Schandl wrote:
I would be interested in statistics per resources, e.g., the average
and maximum number of triples per subject. Can you provide such numbers?
Sorry, this is maybe a little bit too unspecific; especially the
Danny Ayers wrote:
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,
very short non-detailed reply from me!
pub/sub, atom feeds, RDF over XMPP were my initial thoughts on the
matter last week - essentially triple (update/publish) streams on a
pub/sub basis, decentralized suitably, [snip]
then my thoughts switched to the fact that RDF is not XML (or any other
UIs if it were.
Any feedback is most gratefully received as I'm on very limited time
with the current project.
Many Regards,
Nathan / webr3
Kingsley Idehen wrote:
Niklas Lindström wrote:
Hi Nathan!
So let's say I run an article of content through called Deforestation
and Competing Water Uses
the main subjects of the article are:
+ http://dbpedia.org/resource/Deforestation
+ http://dbpedia.org/resource/Reforestation
Kingsley Idehen wrote:
Niklas Lindström wrote:
Hi Nathan!
So let's say I run an article of content through called Deforestation
and Competing Water Uses
the main subjects of the article are:
+ http://dbpedia.org/resource/Deforestation
+ http://dbpedia.org/resource/Reforestation
Aaron Rubinstein wrote:
Niklas Lindström wrote:
On Wed, Nov 18, 2009 at 5:10 PM, Nathan nat...@webr3.org wrote:
Kingsley Idehen wrote:
Niklas Lindström wrote:
Hi Nathan!
So let's say I run an article of content through called
Deforestation
and Competing Water Uses
the main subjects
- tags and subjects just don't cut it the level of
description of relations needs to be somewhat more fine-grained to be of
any use.
Many Regards do hope I've caused no offence;
Nathan
Kingsley Idehen wrote:
Nathan wrote:
Perhaps I'm missing something, but the primary focus for me is to use
ontologies that people will be using in SPARQL (or alternative language)
queries. Anything else appears to be a waste of time.
Multiple properties in multiple languages that appear
Bill Roberts wrote:
Hi Nathan
I think you have to try harder than that to cause offence!
I think an attempt at standardisation on the one 'true' set of
ontologies is futile, not scalable and ultimately a dead end. However,
using suitable existing ontologies in a sensible way leads
Kingsley Idehen wrote:
Ed Summers wrote:
At the Library of Congress we've been experimenting with using an Atom
feed to alert subscribers to new resources available at id.loc.gov
[1]. The approach is similar to what Niklas' is doing, although we
kind of independently arrived at this approach
; and server X could also
consume and handle these change sets, then we'd be about done as far as
i can see?
reminder, i am very new to this so if it's all way off - please disregard.
regards,
nathan
Nathan wrote:
Georgi Kobilarov wrote:
Hi all,
I'd like to start a discussion about a topic that I think is getting
increasingly important: RDF update feeds.
The linked data project is starting to move away from releases of large data
dumps towards incremental updates. But how can services
; unsure of status re forking etc but most of it's there
and functioning v well.
nathan
it for
granted that all normal triples / quads are new - so all we need to do
is find a way of saying X quad / triple has been removed.
kinds regards, and naive as ever,
nathan
and obviously you'd have historic data by nature as well.
please do tell me the flaw in my thinking.
many regards,
nathan
Nathan wrote:
timestamp the predicate in a triple.
please do tell me the flaw in my thinking.
scrap that, sorry for the noise, doesn't cater for indicating data has
been removed
however point remains that perhaps synchronisation (date or version)
data should perhaps be in the RDF rather
Herbert Van de Sompel wrote:
On Nov 25, 2009, at 3:51 AM, Nathan wrote:
Danny Ayers wrote:
What Damian said. I keep all my treasures in Subversion, it seems to
work.
3rd that; whilst the http time travel conversation goes on - I can't
help feeling that going down the date header route
ontologies with a class of Image and related properties for
width/height etc. kinda like mrss i guess.
regards thanks in advance
Nathan
Antoine,
Thanks indeed :-) that's answered pretty much all my ontology finding
related questions! - and good of you to see right to the root cause of
my problem.
Regards,
Nathan
Antoine Zimmermann wrote:
Nathan, pedants,
A rather general remark in reaction to your question.
In order
something is wrong in my understanding.
Kingsley Idehen wrote:
Nathan wrote:
so do / should the Post, HTML Document and RDF Document all have
different Identifiers?
If you want to make a statement (create a record) describing anything
you need an Identifier for the subject of your description
Kingsley Idehen wrote:
Nathan wrote:
Hi All,
To follow on a conversation I'm having with Kingsley at the minute, and
to make it public, I'm also cc'ing in public-lod, pedantic-web and the
sioc user list, as it is to do with all 3. Please do give feedback and
correct me where I'm wrong
Nathan wrote:
Kingsley Idehen wrote:
Nathan wrote:
Hi All,
To follow on a conversation I'm having with Kingsley at the minute, and
to make it public, I'm also cc'ing in public-lod, pedantic-web and the
sioc user list, as it is to do with all 3. Please do give feedback and
correct me where
Kingsley Idehen wrote:
Nathan wrote:
[SNIP]
i think it's safe to say I grok this all now (lod); armed with
everything i need, and full comprehension to do a months work in the
next 4 days!
kingsley, sincerely, thank you for everything - you've been invaluable
in this process and looking
nat lu wrote:
[snip]
The identity however is maintained by the fingerprint of the
object graphs, and the URI is just an image of that fingerprint at
some point in time/location ?
I think Identity is managed by the beholder of things, the one that
deems them important
.
passable and usable?
regards;
nathan
Toby Inkster wrote:
On Tue, 2009-12-08 at 16:43 +, Nathan wrote:
I've implemented content negotiation as follows:
where we have a URI resource http://example.org/user/23
when that URI is requested then content negotiation using the Accept
header kicks in, if any of the RDF formats
Mark Baker wrote:
On Tue, Dec 8, 2009 at 11:43 AM, Nathan nat...@webr3.org wrote:
in addition adding the extension .n3 / .rdf to the uri causes content
RDF to be returned instead.
How is that information communicated to the world? Is it documented
somewhere, or expressed in-band
Nathan wrote:
Mark Baker wrote:
On Tue, Dec 8, 2009 at 11:43 AM, Nathan nat...@webr3.org wrote:
in addition adding the extension .n3 / .rdf to the uri causes content
RDF to be returned instead.
How is that information communicated to the world? Is it documented
somewhere, or expressed
be handled with just a little bit of client side code and the
use of a lib or two, but that's a different matter.
many regards,
nathan
at their own time.
And finally the above approach of keeping the predicate but using
namespace prefixes will work for all rdf, not just a small subset of rdf
graphs, thus saving the normal developer from learning 100's of
different API's.
Many Regards,
Nathan
is a different matter that
can also be handled with just a little bit of client side code and the
use of a lib or two, but that's a different matter.
many regards,
nathan
if anybody is already doing this / can somebody point
me to an example in the wild or a snippet from an ontology that is
already using xsd:pattern w/ DatatypeRestriction.
Many Thanks,
Nathan
of some use.
Many Regards,
Nathan
ps: I've been doing masses of RDF + SPARQL w/ PHP so if you get stuck
with anything give me a shout for pointers :) happy to help.
Hugh Glaser wrote:
Thanks mate.
On 25/01/2010 20:01, Mischa Tuffield mmt...@ecs.soton.ac.uk wrote:
Hi Hugh,
The code you
Joshua Shinavier wrote:
On Thu, Jan 28, 2010 at 8:57 AM, Nathan nat...@webr3.org wrote:
Hi All,
Hi Nathan,
Does anybody know of any programming languages, released or in
development / patching which support for EAV / triples / URIs as
attribute/variable names
Marko mentioned
serialization format inherently limits future expansion and
optimisation. Thus whilst I'm massively in favour of REST and HTTP for
the time being, I'm also acutely aware that the concept must be able to
transcend both REST and HTTP in the future. If that makes sense (?)
Many Regards,
Nathan
Kingsley Idehen wrote:
Nathan wrote:
Yves Raimond wrote:
On Thu, Jan 28, 2010 at 10:44 PM, Yves Raimond
yves.raim...@gmail.com wrote:
On Thu, Jan 28, 2010 at 10:09 PM, Ross Singer
rossfsin...@gmail.com wrote:
I'm not sure this is what the spec actually says. xml:base deals
association to
the strings, it's just a string).
Hope that helped a bit and if you have any questions or would like the
resource lookup code / sparql queries do let me know.
Regards,
Nathan
Ivan Herman wrote:
Not providing an answer, but... if such tools are around, I would love
to see them added
mail.
To illustrate I'll quickly hook in with alchemy again and post a few
results for comparison shortly.
Many Regards,
Nathan
Nathan wrote:
Davide Palmisano wrote:
On Tue, Feb 2, 2010 at 3:39 PM, Matthias Samwald samw...@gmx.at wrote:
Davide wrote:
BTW: and what about http://www.alchemyapi.com ? have you tried it?
AlchemyAPI does not seem to return DBpedia / Wikipedia identifiers (?)
yes, read here http
Matthias Samwald wrote:
Nathan wrote
Quite sure the results speak for themselves + glad that so much useful
information can be extracted from text all ready.
The results look good indeed. It even passed the FOAF test!
Can you estimate the ratio of contributions from Zemanta
a
dictionary - not very practical!)
Many Regards,
Nathan
Wow - that's a nice release!
Did I read it correctly; all the cartridges for sponger are now in v6.1???
Also didn't note mention of GEO extension, is that for Virtuoso
Commercial only at this time?
Many Regards Congrats,
Nathan
Hugh Williams wrote:
Hi,
OpenLink Software is pleased
Tom Morris wrote:
On Tue, Feb 2, 2010 at 10:21 AM, Nathan nat...@webr3.org wrote:
I should probably be replying here as I've been doing this, and working
on this for the past few months.
I've found from experience that the only viable way to address this need
is to do as follows:
1: Pass
is described.
see: http://www.w3.org/TR/rdf-schema/#ch_isdefinedby
many regards,
nathan
Richard Cyganiak wrote:
Hi Nathan,
On 10 Feb 2010, at 17:26, Nathan wrote:
interested to here more opinions on the *may* also just send a default
representation back to the client. That's because the Accept header is
just a statement of preference by the client comment though; because
behind the firewall in a silo
with nothing open about it.
So if I then term Linked Open Data as Linked Data which has been
published properly, then what do I use to refer to the tech-stack and
principals as a whole?
Will leave it there,
Many Regards
Nathan
Mike Bergman wrote:
Hi Nathan,
Though I assume not universally shared:
On 2/16/2010 7:32 PM, Nathan wrote:
Peter Ansell wrote:
Hi Nathan,
On 17 February 2010 11:18, Nathannat...@webr3.org wrote:
Hi All,
Other than the obvious - Linking Open Data = The name of W3C Community
Project
Hugh Glaser wrote:
Wow Nathan, that's an interesting set of reactions - we could go off and
discuss them, but I will give my 3 cents on the original question.
I too have difficulty with customers on the Open word.
Open can mean a few things, and some of the posters here seem to interpret
of the web / semantic
web / linked data - I've noted several rather good informative posts
like this, from yourself, throughout my travels through the mailing list
archives.
Many Regards,
Nathan
Kingsley Idehen wrote:
Nathan wrote:
Hugh Glaser wrote:
Wow Nathan, that's an interesting set of reactions - we could go off and
discuss them, but I will give my 3 cents on the original question.
I too have difficulty with customers on the Open word.
Open can mean a few things, and some
using rdfg-1:Graph when describing graphs?
Many Regards,
Nathan
with the
password only I know.
Thoughts, Opinions?
Regards,
Nathan
Melvin Carvalho wrote:
CC: foaf-protocols
On 22 February 2010 14:40, Nathan nat...@webr3.org wrote:
Hi All,
As per the subject, I'm very tempted to store a base64 encoded versions
of my PKCS#12 certificate store file inside my FOAF profile; this way at
any point I can simply download
Nathan wrote:
Story Henry wrote:
On 22 Feb 2010, at 14:50, Nathan wrote:
Melvin Carvalho wrote:
CC: foaf-protocols
On 22 February 2010 14:40, Nathan nat...@webr3.org wrote:
Hi All,
As per the subject, I'm very tempted to store a base64 encoded versions
of my PKCS#12 certificate store
Bruno Harbulot wrote:
Story Henry wrote:
On 22 Feb 2010, at 15:00, Nathan wrote:
Yes, check out the foaf+ssl protocol. It's very easy to create
public key pairs, one for each browser, and it really makes sense to
publish the public key there, using the cert and rsa ontologies
http
Story Henry wrote:
On 22 Feb 2010, at 15:07, Nathan wrote:
So I can just chain up multiple public key pairs in my FOAF profile ya?
yes, you just need to tie them to your WebId.
See my foaf, where I have two:
http://bblfish.net/people/henry/card
Henry
perfect - thanks :)
next quick
;
_ns1:data_in_format RAWDATA^^base64 .
I had always assumed that a bit of raw data in there (that is
semantically described and linked) would be fine (and save an HTTP GET)
- but now thinking I may be wrong after speaking to somebody.
Any input?
Regards,
Nathan
data in the RDF is going to be messy,
especially if there is a lot of data, and less flexible for user
agents/application software.
On 24 Feb 2010, at 20:08, Nathan wrote:
Hi All,
Just need to gather opinions on whether it's okay to store data (as in
data in a certain format) in RDF
is needed in the interim and provides access to
the masses, surely an extra chance to introduce developers to linked
data / rdf / sparql is a good thing?
Regards,
Nathan
Dave Reynolds wrote:
On 25/02/2010 18:11, Nathan wrote:
Leigh Dodds wrote:
Hi all,
Yesterday, at the 2nd Linked Data London Meetup, Dave Reynolds, Jeni
Tennison and myself ran a workshop introducing some work we've been
doing around a Linked Data API.
The API is intended to be a middle
Kingsley Idehen wrote:
Nathan wrote:
Leigh Dodds wrote:
Hi all,
Yesterday, at the 2nd Linked Data London Meetup, Dave Reynolds, Jeni
Tennison and myself ran a workshop introducing some work we've been
doing around a Linked Data API.
The API is intended to be a middle-ware layer
to be
considered permanent. Clients with link editing capabilities SHOULD
delete references to the request-target after user approval. [2]
Many Regards,
Nathan
[1]
http://tools.ietf.org/html/draft-ietf-httpbis-p2-semantics-08#section-8.3.2
[2]
http://tools.ietf.org/html/draft-ietf-httpbis-p2
Kingsley Idehen wrote:
Nathan wrote:
Hi All,
I'm mainly wondering.. what the Linked Data implications of the
following are:
301 Moved Permanently
The requested resource has been assigned a new permanent URI and any
future references to this resource SHOULD use one of the returned
) be accurately redirected-to when
secondary resources are not allowed in the request-target?
Many Regards,
Nathan
to store the weak entity tag within
the representation(s) so that this equivalence can be read by a machine
outside the scope of HTTP - and - should other properties such as
daml:equivalentTo be used instead / in addition ?
Many Regards,
Nathan
Pierre-Antoine Champin wrote:
On 11/03/2010 11:04, Toby Inkster wrote:
On Thu, 2010-03-11 at 02:24 +, Nathan wrote:
If I have multiple representations of a resource which I consider
equal, let's say one of each of the following: RDF+XML, RDF+N3, SVG
Then should all three representations
on this list) could handle this serialization.
Any other comments or thoughts people may have on this topic are more
than welcome.
Many Regards,
Nathan
Rob Vesse wrote:
Hi All,
I've been putting some thought in to RDF Serializations in the context
of linked data; and ever increasingly I'm questioning why I feel the
need to offer the same RDF graphs serialized in different formats.
I guess a specific questions would be, does anybody operate
.
If the above is true (secondary resource must also be deleted on removal
of primary resource), then I should never use a fragment Identifier to
refer to a non-virtual object (i.e. me a Person) - because I can't be
deleted by simply removing a resource. (?)
Regards!
Nathan
joel sachs wrote:
Nathan,
I'm not sure it's correct to refer to your examples as primary and
secondary resources. As you point out, it is not true that
if I remove http://www.w3.org/People/Berners-Lee/card then
http://www.w3.org/People/Berners-Lee/card#i no longer exists.
since
Thanks for your reply Richard,
I'm going to go balls-out today and challenge a bit of this for the
sake of argument:
Richard Cyganiak wrote:
Hi Nathan,
On 12 Mar 2010, at 14:00, Nathan wrote:
Last question(s) related to fragments.. if I have:
http://example.org/something
http
Kingsley Idehen wrote:
How do you remove: http://www.w3.org/People/Berners-Lee/card#i ? Let's
say you take it out of http://www.w3.org/People/Berners-Lee/card, then
for agents that seek description of
http://www.w3.org/People/Berners-Lee/card#i via aforementioned URL,
you get nothing.
joel sachs wrote:
Nathan,
A couple of points ...
On Fri, 12 Mar 2010, Nathan wrote:
joel sachs wrote:
Nathan,
I'm not sure it's correct to refer to your examples as primary and
secondary resources. As you point out, it is not true that
if I remove http://www.w3.org/People/Berners-Lee
Richard Cyganiak wrote:
Hi Nathan,
On 12 Mar 2010, at 16:46, Nathan wrote:
Then if I delete a Primary resource, the secondary resources must also
be deleted, true / false (?).
The web is about representations of information resources. If you add
RDF to the picture, then it's also about
Leigh Dodds wrote:
Hi,
exactly.. how *DO* you remove a resource from the web of linked data?
let's just suppose that the high court has instructed it; it *must*
happen - how?
What would you do for a document?
Its on your web site. Its also in the Google cache and the Wayback
Machine.
Kingsley Idehen wrote:
Nathan wrote:
Leigh Dodds wrote:
Hi,
exactly.. how *DO* you remove a resource from the web of linked data?
let's just suppose that the high court has instructed it; it *must*
happen - how?
What would you do for a document?
Its on your web site. Its
://xmlns.org/foaf/0.1/ .
@prefix rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# .
@prefix rdfs: http://www.w3.org/2000/01/rdf-schema# .
@prefix owl: http://www.w3.org/2002/07/owl# .
@prefix w: http://webr3.org/ns# .
http://webr3.org/nathan#authoritative rdf:type w:NamedGraph ;
dcterms:isPartOf
Hi All,
After much thought recently I've taken the following approach (please do
negate the fact I'm using .html etc in examples, it's only for clarity
in this email).
Suppose I have a real world object:
http://example.com/resource/London
and then an html and rdf description
handles the
rest
regards!
Nathan wrote:
Hi All,
After much thought recently I've taken the following approach (please do
negate the fact I'm using .html etc in examples, it's only for clarity
in this email).
Suppose I have a real world object:
http://example.com/resource/London
Nathan wrote:
Robert Sanderson wrote:
To abuse an overused quote: And now you have two problems.
Firstly, you have an additional kitten (URI) to pay for with the
descriptions resource in addition to the other URIs.
Secondly, the semantics of your descriptions resource are unclear
Robert Sanderson wrote:
Hi Nathan,
On Wed, Mar 24, 2010 at 8:52 AM, Nathan nat...@webr3.org wrote:
Robert Sanderson wrote:
Secondly, the semantics of your descriptions resource are unclear. Is it
an
information resource or not? Is it a conceptual set of all of the
formats
Hugh Glaser wrote:
If it warrants it, why not create a wikipedia page about the semantic
web community giving information; then rdf the same - describe it.. then
you get the uri and can map it (and other groups) to foaf:Group.
?
of results, transforming it in to a
the needed format an then displaying? sounds like every system I've ever
seen from the simple html view of an sql query right up to the mighty
google itself.
Maybe I'm being naive here; what am I missing?
Many Regards,
Nathan
David Wood wrote:
Hi Tom,
On Friday, 26 March, Ian Davis (CTO of Talis) reported that purl.org was
rejecting some requests to Dublin Core PURLs [1]. I asked OCLC to increase
the number of threads used by their PURL server and the maximum number of
concurrent connections. They complied
Danny Ayers wrote:
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
Michael Hausenblas wrote:
Nathan, Phil, All,
and quote:
If the relation-type is a relative URI, its base URI MUST be
considered to be http://www.iana.org/assignments/relation/;
http://tools.ietf.org/id/draft-nottingham-http-link-header-03.txt
obviously all the links defined by:
http
see it!
Please do see: Should the links be monodirectional or bidirectional?
at http://www.w3.org/DesignIssues/Topology.html
Many Regards,
Nathan
This may have some bearing on Linked (Open) Data; just because Linked
Data can be dereferenced and read via GET, does that mean it can be used
and retrieved by anybody.. and related questions
Original Message
Subject: Interesting post relating to Deep Linking
Resent-Date: Tue,
Melvin Carvalho wrote:
2010/4/12 Kingsley Idehen kide...@openlinksw.com
All,
Edited, as I just realized some critical typo+errors that affect context.
Hopefully, you understand what Nathan is articulating (ditto Giovanni). If
not, simply step back and as yourself a basic question: What
Hugh Glaser wrote:
decent caching policy). SPARQL is a whole different ball-game, and should be
separated out
+^1 in every way
scope for FOAF+SSL, FOAF+OAuth+Twitter or
security upgrade and downgrade between the different protocols. The
precise details of which I haven't thought of yet.
Best,
Nathan
to be implemented (other than a normal ping on
publish/update).
Thoughts?
Best,
Nathan
really understanding what's going on.
Best,
Nathan
ps: John, that Rectangular Data thing is really catching on :-)
pps: whilst talking about bridges, ask any bridge builder about the
strength of triangles then relate to the trinity exposed via EAV.
Jiří Procházka wrote:
So essentially, all
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