Re: Survey on Faceted Browsers for RDF data ?

2015-04-28 Thread Tim Berners-Lee
The tabulator widget library has a table widget which automatically adds filter strings or numeric range filters and sort arrows at the top of each table column making a low profile faceted browser. Ilaria Liccardi wrote it. It us used in a generic class member property table, and in a number

Re: Debates of the European Parliament as LOD

2014-11-20 Thread Tim Berners-Lee
On 2014-11 -11, at 09:00, Hollink, L. l.holl...@vu.nl wrote: On 08 Nov 2014, at 17:20, Tim Berners-Lee ti...@w3.org wrote: On 2014-11 -05, at 11:19, Hollink, L. l.holl...@vu.nl wrote: - Dataset announcement - We are happy to announce the release of a new linked dataset

Re: Debates of the European Parliament as LOD

2014-11-08 Thread Tim Berners-Lee
On 2014-11 -05, at 11:19, Hollink, L. l.holl...@vu.nl wrote: - Dataset announcement - We are happy to announce the release of a new linked dataset: the proceedings of the plenary debates of the European Parliament as Linked Open Data. The dataset covers all plenary debates held

Re: DOM for RDF?

2013-12-02 Thread Tim Berners-Lee
I think my conclusion from the DOM experience was that actually people wanted jQuery -- something optimized for the language. My own RDF APIs have been optimized for js and python respectively, though they share style and many calls. See undocumented rdflib.js

Lang and dt in the graph. Was: Dumb SPARQL query problem

2013-12-01 Thread Tim Berners-Lee
On 2013-11 -23, at 12:21, Andy Seaborne wrote: On 23/11/13 17:01, David Booth wrote: [...] This would have been fixed if the RDF model had been changed to represent the language tag as an additional triple, but whether this would have been a net benefit to the community is still an open

Re: SPARQL results in RDF

2013-09-23 Thread Tim Berners-Lee
1) I can see Hugh's frustration that the RDF system is incomplete in a way. You tell everyone you have a model which can be used for anything and then make something which doesn't use it. What's wrong with this picture? Standardising/using/adopting

Re: Representing NULL in RDF

2013-06-12 Thread Tim Berners-Lee
On 2013-06 -10, at 19:48, Steve Harris wrote: On 2013-06-09, at 20:36, Pat Hayes pha...@ihmc.us wrote: ... - value uknown (it should be there but the source doesn't know it) Actually that piece of information could be written down in a RDF Schema graph like this: It can be written far

Re: Representing NULL in RDF

2013-06-04 Thread Tim Berners-Lee
On 2013-06 -03, at 22:39, Jan Michelfeit wrote: Hi, thank you all for your answers. ... One represents a null by failing to include the relationship ... RDF semantics make no assumptions about what the absence of a proposition/statement means I agree. The question was actually about

Re: Restpark - Minimal RESTful API for querying RDF triples

2013-04-17 Thread Tim Berners-Lee
Check out Jeni Tennison's work on the rest API generator they use for the UK government data. Sent from my portable device. On Apr 16, 2013, at 18:52, Luca Matteis lmatt...@gmail.com wrote: I have recently created Restpark: http://lmatteis.github.io/restpark/ It's my way of pushing a

Re: uri for uri

2013-04-01 Thread Tim Berners-Lee
Well, the colon should be. No reason why the / should be in this case. You can't have more than one colon in a URI. (Though you can in what's typed in a browser bar). Also, the TAG is going to eliminate the // soon, which will make everything much simpler. Tim (hmmm ...So what would be the

Re: Content negotiation for Turtle files

2013-02-10 Thread Tim Berners-Lee
I feel we should be crisp about these things. Its not a question of thinking of what things kind of tend to enhance interoperability, it is defining a protocol which 100% guarantees interoperability. Here are three distinct protocols which work, ie guarantee each client can understand each

Re: Is there a general preferred property?

2012-07-17 Thread Tim Berners-Lee
Interesting to go meta on this with x:preferred . What would be the meaning of preferred -- preferred by the object itself or the owner of the object itself? In other words, I wouldn't use it to store in a local store my preferred names for people, that would be an abuse of the property. Tim

Re: Decommissioning a linked data site

2012-05-30 Thread Tim Berners-Lee
Seems to me that the crucial bit of information that the data which is served by your site now can be got much better by going th LoC site woul dbe nice to have in machine readable form. One idea is *leaving* it in CKAN but mark it as historical so it can be a place o make the pointer the the

Re: Google Knowledge Graph Experiment

2012-05-18 Thread Tim Berners-Lee
Nor for me in Massachusetts On 2012-05 -18, at 12:45, Ivan Herman wrote: Well... I tried this trick, but does not change a thing. Yes, the search happens on www.google.com, but I presume it knows that I am, hm, considered as Dutch and sticks to its guns: I see nothing of the GKG on my

Re: WebIDs and Content-Location

2012-04-13 Thread Tim Berners-Lee
1) The base address used for parsing an RDF document should be the request URI, not the Content-Location: value. Otherwise randomly clients who can accept n3 and rdf/xml will get hada.rdf#me and hada.n3#me which is clearly a bad idea. (Imagining that there is a hada.n3 option). Is there is a

Re: Datatypes with no (cool) URI

2012-04-05 Thread Tim Berners-Lee
Sent from my portable device. On Apr 3, 2012, at 16:58, Phil Archer ph...@w3.org wrote: Again, thanks everyone for the quick and useful responses. @Gannon, @Andy - you are right that the issue of sex/gender is far from straightforward (they're not even the same thing I've learned!)

Re: Change Proposal 25 for HttpRange-14

2012-04-01 Thread Tim Berners-Lee
PM, Tim Berners-Lee ti...@w3.org wrote: Jonathan, I have written the below idea up as a change proposal http://www.w3.org/wiki/HTML/ChangeProposal25 The number 25 has no semantics. Tim On 2012-03 -25, at 12:35, Tim Berners-Lee wrote: [...] the basic idea of giving a way

Re: See Other

2012-03-28 Thread Tim Berners-Lee
http://www.advogato.org/person/timbl/foaf.rdf#me http://www.w3.org/People/Berners-Lee/card#i http://www4.wiwiss.fu-berlin.de/bookmashup/persons/Tim+Berners-Lee http://www4.wiwiss.fu-berlin.de/dblp/resource/person/17 and there is a seeAlso to the machine-editable

Re: Change Proposal for HttpRange-14

2012-03-27 Thread Tim Berners-Lee
On 2012-03 -27, at 16:17, Michael Smethurst wrote: No sane publisher trying to handle a decent amount of traffic is gonna follow the dbpedia pattern of doing it in one step (conneg to 303) and picking up 2 server hits per request. I've said here before that the dbpedia publishing pattern is

What would break? Re: httpRange-14

2012-03-26 Thread Tim Berners-Lee
On 2012-03 -26, at 06:18, Leigh Dodds wrote: I may be misreading you here, but I'm not against unambiguous definition. My show what is actually broken comment (on twitter) was essentially the same question as I've asked here before, and as Hugh asked again recently: what applications

NIR SIDETRACK Re: Change Proposal for HttpRange-14

2012-03-26 Thread Tim Berners-Lee
On 2012-03 -25, at 14:06, Norman Gray wrote: Tim, greetings. On 2012 Mar 25, at 17:35, Tim Berners-Lee wrote: (Not useful to talk about NIRs. The web architecture does not. Now does Jonathan's baseline, not HTTP Range-14. Never assume that what an IR is about is not itself a IR

Re: Change Proposal for HttpRange-14

2012-03-25 Thread Tim Berners-Lee
On 2012-03 -25, at 07:31, Jeni Tennison wrote: [..] Yes, as I argued here [3] I strongly believe that casting the separation of IR and NIR as a best practice rather than a vital necessity is the right way to go. Let me assume that you meant: [..] Yes, as I argued here [3] I strongly

Re: Change Proposal for HttpRange-14

2012-03-25 Thread Tim Berners-Lee
On 2012-03 -23, at 21:02, Jeni Tennison wrote: On 23 Mar 2012, at 22:42, Jonathan A Rees wrote: On Thu, Mar 22, 2012 at 4:21 PM, Jeni Tennison j...@jenitennison.com wrote: While there are instances of linked data websites using 303 redirections, there are also many examples of people

Change Proposal 25 for HttpRange-14

2012-03-25 Thread Tim Berners-Lee
Jonathan, I have written the below idea up as a change proposal http://www.w3.org/wiki/HTML/ChangeProposal25 The number 25 has no semantics. Tim On 2012-03 -25, at 12:35, Tim Berners-Lee wrote: [...] the basic idea of giving a way of the server making it explicit that the URI identifies

Re: Change Proposal for HttpRange-14

2012-03-25 Thread Tim Berners-Lee
On 2012-03 -24, at 00:47, Pat Hayes wrote: I am sympathetic, but... On Mar 23, 2012, at 9:59 AM, Dave Reynolds wrote: The proposal is that URI X denotes what the publisher of X says it denotes, whether it returns 200 or not. And what if the publisher simply does not say anything

Re: httpRange-14 Change Proposal

2012-03-25 Thread Tim Berners-Lee
On 2012-03 -25, at 14:39, Noah Mendelsohn wrote: (commenting now as a technical contributor to the TAG) On 3/25/2012 5:47 AM, Jeni Tennison wrote: a 200 response to a probe URI no longer by itself implies that the probe URI identifies an information resource or that the response is a

Re: httpRange-14 Change Proposal

2012-03-25 Thread Tim Berners-Lee
On 2012-03 -25, at 16:53, Noah Mendelsohn wrote: On 3/25/2012 3:37 PM, Tim Berners-Lee wrote: x 303 - y means y is a description of x and therefore y is an information resource. My point is: that's a perfectly coherent definition for 303 in principle, but I don't read RFC 2616

Re: Change Proposal for HttpRange-14

2012-03-23 Thread Tim Berners-Lee
On 2012-03 -22, at 16:21, Jeni Tennison wrote: [...] Second, a 200 response to a probe URI no longer implies that the probe URI identifies an information resource; instead, this can only be inferred if the probe URI is the object of a ‘describedby’ relationship. So for any arbitrary web

Re: Modelling colors

2012-01-25 Thread Tim Berners-Lee
On 2012-01 -26, at 00:15, Melvin Carvalho wrote: I see hasColor a lot in the OWL documentation but I was trying to work out a way to say something has a certain color. I understand linked open colors was a joke Anyone know of an ontology with color or hasColor as a predicate? In

Re: What do you get when you dereference the URI of a named graph?

2012-01-05 Thread Tim Berners-Lee
On 2012-01 -04, at 10:42, Yrjana Rankka wrote: Let's consider this situation: GRAPH x s1 p1 val1; p2 val2; p3 val3. GRAPH metadata x dc:created somedate; dc:modified someotherdate; dc:creator Zaphod Beeblebrox. A client dereferences x What would you expect to

Re: What do you get when you dereference the URI of a named graph?

2012-01-04 Thread Tim Berners-Lee
Frans, I don't find (as I have said many times before) the term named graph useful, and this is one example of why. A graph (in N3, say) is a value, like a string. Documents, on the other hand, have URIs, and when you look up those URIs you get back RDF (like turtle) which you can parse to a

Re: Squaring the HTTP-range-14 circle [was Re: Schema.org in RDF ...]

2011-06-19 Thread Tim Berners-Lee
Absolutely, Pat. Well said. This is really important. Can we please stop the madness of confusing things with documents about them and do what we want to do cleanly and in an efficient way. Tim On 2011-06 -19, at 00:05, Pat Hayes wrote: Really (sorry to keep raining on the parade, but) it is

Re: Squaring the HTTP-range-14 circle

2011-06-17 Thread Tim Berners-Lee
On 2011-06 -17, at 08:51, Ian Davis wrote: If you use HTTP 200 for something different, then you break my ability to look at a page, review it, and then express my review in RDF, using the page's URI as the identifier. Not quite. It is saying that you can't give a review for my

Re: Squaring the HTTP-range-14 circle

2011-06-16 Thread Tim Berners-Lee
I disagree with this post very strongly, and it is hard to know where to start, and I am surprised to see it. On 2011-06 -13, at 07:41, Richard Cyganiak wrote: On 13 Jun 2011, at 09:59, Christopher Gutteridge wrote: The real problem seems to me that making resolvable, HTTP URIs for real

Re: Squaring the HTTP-range-14 circle

2011-06-16 Thread Tim Berners-Lee
Ian, On 2011-06 -16, at 16:41, Ian Davis wrote: Tim, On Thu, Jun 16, 2011 at 6:04 PM, Tim Berners-Lee ti...@w3.org wrote: I don't think 303 is a quick and dirty hack. It does mean a large extension of HTTP to be uses with non-documents. It does have efficiency problems

Re: ANN: Ravensburg/Germany is the world's first city of Semantic Web-based Commerce and Tourism

2011-04-29 Thread Tim Berners-Lee
On 2011-04 -29, at 05:24, Martin Hepp wrote: Dear all: Ravensburg in Germany has just turned on the regular publication of complete, quality-controlled RDF/GoodRelations data about [..] For copyright reasons, I cannot attach a map illustrating the enormous data density, but you can

Re: How many instances of foaf:Person are there in the LOD Cloud?

2011-04-13 Thread Tim Berners-Lee
Nice picture .. don't suppose you have any data at previous times so we can see the growth? Tim On 2011-04 -13, at 07:37, Mischa Tuffield wrote: Hi All, I was looking at the number of foaf files on the web over a year ago now, output looks like so :

Fwd: Early Bird Registration - Second Annual VIVO Conference

2011-04-12 Thread Tim Berners-Lee
Would it be great to have some folks from the LOD community at this conference to make sure that VIVO interfaces well in with the rest of the LOD cloud? Tim Begin forwarded message: From: VIVO alici...@ufl.edu Date: 2011-04-12 8:35:47 EDT To: timbl+v...@w3.org Subject: Early Bird

Re: Several questions about Linked Data

2011-03-23 Thread Tim Berners-Lee
Richard When you have a triple which is in your linked data set which includes a URI in another dataset, then that is called a link. Just as when you have an HTML document which has the URI of an anchor of another HTML document. Not sure why you say there is no real linking going on. You can

Re: The truth about SPARQL Endpoint availability

2011-03-06 Thread Tim Berners-Lee
Maybe the count of triples should be special-cased in the sparql server code, spotted on input and the store size returned. if it is reasonable for the endpoint to keep track of the size of its store. (Do they anyway?) Tim On 2011-03 -05, at 11:58, Bill Roberts wrote: Thanks Hugh - as someone

Re: URI Comparisons: RFC 2616 vs. RDF

2011-01-17 Thread Tim Berners-Lee
On 2011-01 -17, at 16:37, Dave Reynolds wrote: On Mon, 2011-01-17 at 16:51 +0100, Martin Hepp wrote: Dear all: RFC 2616 [1, section 3.2.3] says that When comparing two URIs to decide if they match or not, a client SHOULD use a case-sensitive octet-by-octet comparison of the entire

Re: Semantics of rdfs:seeAlso (Was: Is it best practices to use a rdfs:seeAlso link to a potentially multimegabyte PDF?)

2011-01-14 Thread Tim Berners-Lee
On 2011-01 -14, at 03:48, Martin Hepp wrote: Hi John: IMHO (i) Martin is right regarding the (interpretation of the) definition of rdfs:seeAlso (ii) Tim is right regarding the practical issues thrown up by use of the wider interpretation of the range of rdfs:seeAlso. The question is:

Re: Is it best practices to use a rdfs:seeAlso link to a potentially multimegabyte PDF?, existing predicate for linking to PDF?

2011-01-13 Thread Tim Berners-Lee
On 2011-01 -13, at 07:23, Dave Reynolds wrote: Where is the spec for this engineered protocol and where in that spec does it redefine rdfs:seeAlso? [I believe I have reasonably decent understanding of, and experience with, linked data. It is a useful set of conventions and practices

Re: Is it best practices to use a rdfs:seeAlso link to a potentially multimegabyte PDF?, existing predicate for linking to PDF?

2011-01-10 Thread Tim Berners-Lee
It is well to look at and make best practices for the things we have if we don't It was the FOAF folks who, initially, instead of using linked data, used an Inverse Functional Property to uniquely identify someone and then rdfs:seeAlso to find the data about them. So any FOAF browser has to look

Re: Is vCard range restriction on org:siteAddress necessary?

2011-01-04 Thread Tim Berners-Lee
I wish the conflation of a VCard and a SocialEntity whose card it is were either ruled out completely or asserted completely by statements in the ontology. I personally find that the class of business card is one which I do not want to have any data about. (In fact for me it maps best not to a

Re: Any reason for ontology reuse?

2010-12-08 Thread Tim Berners-Lee
On 2010-12 -08, at 04:35, Martin Hepp wrote: In general, I think that the Semantic Web must use a decentralized approach for the definition and adoption of conceptual elements, same as the Web uses decentralized, fault-tolerant approaches as a fundamental principle. So calling for

Re: Looking for metalex ontology

2010-11-29 Thread Tim Berners-Lee
Bernard, You have been tripped up by abuse of content negotiation. Their document says they do conneg. cwm http://www.metalex.eu/metalex/1.0 gives you data, as cwm only asks for RDF. Following it by hand $ curl -H Accept:application/rdf+xml http://www.metalex.eu/metalex/1.0 !DOCTYPE HTML

Facebook OpenGraphProtocol (was Re: Is 303 really necessary?)

2010-11-28 Thread Tim Berners-Lee
Giovani, When you say the rest of the web, this issue is specifically one with Facebook Open Graph Protocol, which i a new development. When you look at the triples http://inspector.sindice.com/inspect?url=http://www.rottentomatoes.com/celebrity/antonio_banderas/#TRIPLES (Nice view) the you get

Re: Is 303 really necessary?

2010-11-27 Thread Tim Berners-Lee
Sorry, this thread has been around but the public-lod list snuck up on me without my getting on it, so I have missed some of the fray! I am happy to look at improvements in the current HTTPRange 14 architecture as I know that 303 is a pain. But I don't want to break the web. Looking at

Re: linked data about the W3C?

2010-11-24 Thread Tim Berners-Lee
Aye, young man we have had linked data about W3C for many years :-) Point tabulator at http://www.3.org/data#W3C That wil pull in the organizational structure and the specs: - domains - activities - groups - deliverables - documents, versions etc all

Re: Tabulator? Re: More browsers for ISWC 2010 data?

2010-11-09 Thread Tim Berners-Lee
for Executable Open Vocabulary English Q/A Online at www.reengineeringllc.com Shared use is free, and there are no advertisements Adrian Walker Reengineering On Mon, Nov 8, 2010 at 2:04 PM, Tim Berners-Lee ti...@w3.org wrote: Do I assume that the dog food data does not work in tabulator because

Tabulator? Re: More browsers for ISWC 2010 data?

2010-11-08 Thread Tim Berners-Lee
Do I assume that the dog food data does not work in tabulator because it the data does conneg and assumes that if you can handle HTML then you should not be given RDF? With tabulator, http://data.semanticweb.org/conference/iswc/2010/ redirects to

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-28 Thread Tim Berners-Lee
On 2009-06 -25, at 13:29, Pat Hayes wrote: On Jun 25, 2009, at 11:44 AM, Martin Hepp (UniBW) wrote: Hi all: After about two months of helping people generate RDF/XML metadata for their businesses using the GoodRelations annotator [1], I have quite some evidence that the current best

Re: Exceptionally liberal licence - was Re: ANN: sameas.org

2009-06-08 Thread Tim Berners-Lee
Agreed. Go for CC0. Disclaimers are an orthogonal issue I *hope*. On 2009-06 -08, at 00:13, Marc Wick wrote: Added some words in the about - any advice as to what the licence might be? I guess there is some cc licence that corresponds to: The information is provided as-is and without any

Owning URIs (Was: Yet Another LOD cloud browser)

2009-05-18 Thread Tim Berners-Lee
David, On 2009-05 -18, at 07:20, David Huynh wrote: Sherman Monroe wrote: [...] For example, when I search for Microsoft on Google, the first result not only IS what I want, but also LOOKs like what I want. I can make the decision to click on it within maybe 1 or 2 seconds. The URL

Re: OWL and LOD

2009-05-12 Thread Tim Berners-Lee
I agree adding more OWN by degrees is a good idea. But what, John, would you mean by mandate. Do you mean When I have said something about a class in OWL I'm happy for your to hold me to it, or When I have said something about a class in OWL, anyone calling themselves a Link Data client

Domain and range are useful Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Tim Berners-Lee
On 2008-11 -17, at 11:27, John Goodwin wrote: [...] I'd be tempted to generalise or just remove the domain/range restrictions. Any thoughts? There are lots of uses for rand and domain. One is in the user interface -- if you for example link a a person and a document, the system can prompt

Re: freebase parallax: user interface for browsing graphs of data

2008-08-20 Thread Tim Berners-Lee
On 2008-08 -19, at 21:27, David Huynh wrote: The trouble is of course when the whole web is the database, it's hard to suggest those relationships (connections) for a set of entities. How might one solve that problem? I suppose something like Swoogle can help. Is that what Tabulator