Re: Vocabulary to describe software projects and their dependencies

Thanks everyone! DOAP + PROV sounds like a good idea actually. On Tue, Aug 9, 2016 at 8:36 AM, Graham Klyne <g...@ninebynine.org> wrote: > On 08/08/2016 14:57, Martynas Jusevičius wrote: >> >> DOAP vocabulary comes very close: https://github.com/edumbill/doap &

Vocabulary to describe software projects and their dependencies

Hey, I am looking for a way to describe a software project in RDF, in detail. DOAP vocabulary comes very close: https://github.com/edumbill/doap Too bad it looks to be unmaintained. Strangely, the schema does not seem to support relationships (dependencies) between projects. Are there any

Re: Dealing with distributed nature of Linked Data and SPARQL

ke Pubby, i.e., > they serve Linked Data resources by doing a DESCRIBE on a Triple Store, > therefore serving the same triples. But it seems like you have encountered > the opposite (Different triples served) in many systems, do you have data on > how prevalent this issue is? >

Dealing with distributed nature of Linked Data and SPARQL

Hey all, we are developing software that consumes data both from Linked Data and SPARQL endpoints. Most of the time, these technologies complement each other. We've come across an issue though, which occurs in situations where RDF description of the same resources is available using both of

Re: Deprecating owl:sameAs

What about using SKOS instead, like the paper suggests? On Fri, Apr 1, 2016 at 3:01 PM, Sarven Capadisli wrote: > There is overwhelming research [1, 2, 3] and I think it is evident at this > point that owl:sameAs is used inarticulately in the LOD cloud. > > The research that

Re: RASH version 0.5: less roles, LaTeX formulas, and ROCS

You could simplify the examples by doing and avoid escaping the source code. On Thu, Feb 18, 2016 at 12:29 AM, Silvio Peroni wrote: > Dear all, > > I'm pleased to announce the new version (0.5) of RASH, the Research Articles > in Simplified HTML format, and of all the

Re: A parser for detecting W3C OWL 2 profiles

I wonder if some SPARQL queries would be enough to do it? On Fri, 15 Jan 2016 at 10:05, Víctor Rodríguez Doncel wrote: > Ghislain, > > We have running an OWL2 profiler at: > > http://owlprofiler.appspot.com/ > > It is a mere wrapper of OWL-API

Re: Ontology to model access control

Why not use W3C ACL ontology? http://www.w3.org/wiki/WebAccessControl On Wed, Dec 16, 2015 at 11:25 AM, Sebastian Hellmann wrote: > Dear all, > > to guide the integration of data into DBpedia+ effectively, we are working > on a new release of DataID, i.e.

Re: What Happened to the Semantic Web?

Wouter, could you elaborate on the agent calculus bit? Martynas graphityhq.com On Wed, Nov 11, 2015 at 11:56 PM, Wouter Beek wrote: > Hi Ruben, Kingsley, others, > On Wed, Nov 11, 2015 at 9:49 PM, Ruben Verborgh > wrote: >> >> Of course—but the

Re: Please publish Turtle or JSON-LD instead of RDF/XML [was Re: Recommendation for transformation of RDF/XML to JSON-LD in a web browser?]

Unless you drop the object-oriented domain model completely, and apply the constraints directly on the RDF graph. On Mon, Sep 7, 2015 at 3:51 PM, Eric Prud'hommeaux wrote: > > On Sep 4, 2015 12:18 PM, "Stian Soiland-Reyes" > wrote: >> >> One

Re: Recommendation for transformation of RDF/XML to JSON-LD in a web browser?

Frans, you can use an XSLT stylesheet which does exactly that: https://github.com/Graphity/graphity-client/blob/master/src/main/webapp/static/org/graphity/client/xsl/rdfxml2json-ld.xsl There's a bug but it shouldn't be hard to fix: https://github.com/Graphity/graphity-client/issues/62 You will

Re: Please publish Turtle or JSON-LD instead of RDF/XML [was Re: Recommendation for transformation of RDF/XML to JSON-LD in a web browser?]

With due respect, I think it would be foolish to burn the bridges to XML. The XML standards and infrastructure are very well developed, much more so than JSON-LD's. We use XSLT extensively on RDF/XML. Martynas graphityhq.com On Thu, Sep 3, 2015 at 8:03 PM, David Booth wrote: >

Re: Scholarly paper in HTML+RDF through RASH

Silvio, nice work! A couple remarks regarding HTML: p class=code could be precode http://www.w3.org/TR/html401/struct/text.html#edef-CODE p class=quote could blockquote http://www.w3.org/TR/html401/struct/text.html#edef-BLOCKQUOTE It think that would be more semantic :) BTW, shouldn't the

Re: Profiles in Linked Data

Lars, what you describe here is a classic case of data quality control. You don't want any data to enter your system that does not validate against your constraints. As mentioned before, SPARQL and SPIN has been used for this purpose for a long time. There are readily available constraint

Re: Profiles in Linked Data

data. Martynas On Mon, May 18, 2015 at 4:56 PM, Svensson, Lars l.svens...@dnb.de wrote: Martynas, On Monday, May 18, 2015 3:14 PM, Martynas Jusevičius wrote: what you describe here is a classic case of data quality control. You don't want any data to enter your system that does not validate

Re: Profiles in Linked Data

Lars, first of all, a SPARQL query can be converted to RDF graph using SPIN syntax: http://spinrdf.org/sp.html In my mind the RDF Shapes WG is about RDF validation, and hopefully will also be based on SPIN. I'm not interested in the part about non-SPARQL shapes as this is mostly politics at

Re: Profiles in Linked Data

On Wed, May 13, 2015 at 1:42 PM, Phil Archer ph...@w3.org wrote: On 13/05/2015 12:12, Martynas Jusevičius wrote: Lars, first of all, a SPARQL query can be converted to RDF graph using SPIN syntax: http://spinrdf.org/sp.html In my mind the RDF Shapes WG is about RDF validation, and hopefully

Re: Profiles in Linked Data

Lars, this is a very simple answer that I have given you before: a shape of RDF data is defined as SPARQL query. There are no two ways about it. Martynas On Tue, May 12, 2015 at 2:18 PM, Svensson, Lars l.svens...@dnb.de wrote: Kingsley, On Monday, May 11, 2015 9:00 PM, Kingsley Idehen wrote:

Re: Profiles in Linked Data

I think foaf:primaryTopic/foaf:isPrimaryTopic of is a good convention for linking abstract concepts/physical things to documents about them. We use it extensively in our datasets. For example: some/resource#this a bibo:Book ; foaf:isPrimaryTopicOf some/resource/dcat , some/resource/premis .

Re: Profiles in Linked Data

So why don't you include both DCAT and PREMIS in the description and let the client figure it out? I haven't yet encountered a use case where profiles would be necessary. WebArch only talks about representations (descriptions) that differ in terms of media type:

Re: Profiles in Linked Data

Lars, you could define a default profile using Graphity. It would be an OWL class with annotations, e.g.: #SomeResource a owl:Classs ; gp:uriTemplate /some/resource ; gp:query #ConstructDCAT . #ConstructDCAT a sp:Construct ; sp:text CONSTRUCT ... . # uses DCAT You could implement a

Re: Profiles in Linked Data

As you wrote, media type is orthogonal to profiles. To retrieve RDF/XML, you would use content negotiation (Accept header). You would need to run the Graphity processor that would match URI templates and execute SPARQL queries from the sitemap ontology. Sure, instead of query strings you could

Re: Profiles in Linked Data

To my understanding, in a resource-centric model resources have a description containing statements available about them. When you try split it into parts, then you involve documents or graphs and go beyond the resource-centric model. On Thu, May 7, 2015 at 5:25 PM, Svensson, Lars

Re: Profiles in Linked Data

Lars, I am not convinced your use case requires a whole new concept (and following implementations) of Linked Data profiles. I have outlined practical solutions you already can use now: 1. use a single description including all vocabularies 2. make separate resources with separate descriptions

Re: Survey on Faceted Browsers for RDF data ?

Hey Christian, Graphity Platform implements faceted search purely using SPARQL on a standard triplestore. It manipulates FILTERs on the fly based on the filters selected by the user. Here's a working example: http://dedanskeaviser.dk/newspapers Martynas graphityhq.com On Mon, Apr 27, 2015 at

Re: Best practices on how to publish SPARQL queries?

Hey Niklas, we're using SPIN SPARQL syntax for this: http://spinrdf.org/sp.html Here's an example vocabulary with embedded queries: https://github.com/Graphity/graphity-processor/blob/master/src/main/resources/org/graphity/processor/vocabulary/gp.ttl Martynas graphityhq.com On Sun, Apr 26,

Re: Microsoft Access for RDF?

On Fri, Feb 20, 2015 at 6:41 PM, Kingsley Idehen kide...@openlinksw.com wrote: On 2/20/15 12:04 PM, Martynas Jusevičius wrote: Not to criticize, but to seek clarity: What does the term resources refer to, in your usage context? In a world of Relations (this is what RDF is about

Re: Microsoft Access for RDF?

...@openlinksw.com wrote: On 2/21/15 9:48 AM, Martynas Jusevičius wrote: On Fri, Feb 20, 2015 at 6:41 PM, Kingsley Idehen kide...@openlinksw.com wrote: On 2/20/15 12:04 PM, Martynas Jusevičius wrote: Not to criticize, but to seek clarity: What does the term resources refer to, in your usage

Re: Microsoft Access for RDF?

Hey Michael, the resource description being edited is loaded with a SPARQL query. The updated description is inserted using SPARQL update. Although often it is useful to edit and update full content from a named graph using Graph Store Protocol instead. So view and update mechanisms are not

Re: Microsoft Access for RDF?

in the previous email, but you haven't replied to that. On Sat, Feb 21, 2015 at 8:43 PM, Kingsley Idehen kide...@openlinksw.com wrote: On 2/21/15 1:34 PM, Martynas Jusevičius wrote: Kingsley, I don't need a lecture from you each time you disagree. I am not lecturing you. I am trying to make

Re: Microsoft Access for RDF?

I find it funny that people on this list and semweb lists in general like discussing abstractions, ideas, desires, prejudices etc. However when a concrete example is shown, which solves the issue discussed or at least comes close to that, it receives no response. So please continue discussing

Re: Microsoft Access for RDF?

Hey Paul, we have the editing interface, but ontologies are not of much help here. The question is, how and where to draw the boundary of the description that you want to edit, because millions of triples on one page will not work. Fine-grained named graphs and/or SPARQL queries/updates are 2

Re: Microsoft Access for RDF?

? select distinct ?g where { graph ?g { ?s ?p ?o } } count() didn't work for me BTW. On Wed, Feb 18, 2015 at 10:51 PM, Kingsley Idehen kide...@openlinksw.com wrote: On 2/18/15 4:01 PM, Martynas Jusevičius wrote: we have the editing interface, but ontologies are not of much help here. The question

Re: Microsoft Access for RDF?

Paul, does this look something like the interface you could use? http://linkeddatahub.com/ldh?mode=http%3A%2F%2Fgraphity.org%2Fgc%23EditMode Martynas graphityhq.com On Wed, Feb 18, 2015 at 11:59 PM, Paul Houle ontolo...@gmail.com wrote: Well here is my user story. I am looking at a page

Re: linked open data and PDF

Thanks for clarifying that Michael. Well, then I give up :) XMP looks ridiculous indeed. If normal RDF/XML was allowed, it could be actually useful. On Jan 20, 2015 9:28 AM, Michael Brunnbauer bru...@netestate.de wrote: Hello Martynas, On Tue, Jan 20, 2015 at 02:34:23AM +0100, Martynas

Re: linked open data and PDF

Hey all, I think APIs for common languages like Java and C# to extract XMP RDF from PDF Files/Streams would be much more helpful than standalone tools such as Paul mentions. I've looked at Adobe PDF Library SDK but none of the features mention metadata:

Re: linked open data and PDF

PDFBox includes metadata API, but does not mention RDF: https://pdfbox.apache.org/1.8/cookbook/workingwithmetadata.html On Mon, Jan 19, 2015 at 11:31 PM, Martynas Jusevičius marty...@graphity.org wrote: Hey all, I think APIs for common languages like Java and C# to extract XMP RDF from PDF

Re: linked open data and PDF

Larry, IMO mixing RDF/XML with JSON doesn't make sense. Why not keep it RDF/XML? Like this (not tested): x:xmpmeta xmlns:x=adobe:ns:meta/ rdf:RDF xmlns:rdf=http://www.w3.org/1999/02/22-rdf-syntax-ns#; rdf:Description rdf:about= xmlns:pdf=http://ns.adobe.com/pdf/1.3/;

Re: scientific publishing process (was Re: Cost and access)

Dear Peter, please show me how to query PDFs with SPARQL. Then I'll believe there are no benefits of XHTML+RDFa over PDF. Addressing the issue from the reviewer perspective only is too narrow, don't you think? Martynas On Mon, Oct 6, 2014 at 6:08 PM, Peter F. Patel-Schneider

Re: scientific publishing process (was Re: Cost and access)

conferences. On 10/06/2014 09:19 AM, Martynas Jusevičius wrote: Dear Peter, please show me how to query PDFs with SPARQL. Then I'll believe there are no benefits of XHTML+RDFa over PDF. Addressing the issue from the reviewer perspective only is too narrow, don't you think? Martynas

Re: Technical challenges (Was Re: [ESWC 2015] First Call for Paper)

Hey all, is there any established and/or widely supported LaTeX XML schema? I have found several projects, but not sure how much they're used: - http://dlmf.nist.gov/LaTeXML/ - http://getfo.org/texml/ - http://www-sop.inria.fr/marelle/tralics/ If there would be an agreed XML schema, it would be

Re: Technical challenges (Was Re: [ESWC 2015] First Call for Paper)

Actually LaTeXML seems to do pretty much I what I was thinking about: http://dlmf.nist.gov/LaTeXML/manual/usage/usage.single.html#SS0.SSS0.P7 Could be packaged in a more user-friendly way though. On Thu, Oct 2, 2014 at 12:56 AM, Martynas Jusevičius marty...@graphity.org wrote: Hey all

Re: URIs within URIs

Hey all, the only specification I know that actually solves practical RDF input problems is RDF/POST encoding: http://www.lsrn.org/semweb/rdfpost.html It can be easily incorporated into XSLT stylesheets to provide reusable layout templates, and with SPIN constraints to provide validation:

Re: URIs within URIs

Hey all, Graphity Client uses the same ?uri= convention: http://semanticreports.com/?uri=http%3A%2F%2Fwww4.wiwiss.fu-berlin.de%2Feurostat%2Fresource%2Fcountries%2FDanmark Martynas graphityhq.com On Fri, Aug 22, 2014 at 5:56 PM, Bill Roberts b...@swirrl.com wrote: Hi Luca We certainly find a

Re: What happened to my trusted Turtle validator and converter?

Phil, AFAIK, none of the validators on that list take large enough user input both as RDF/XML and Turtle, as rdfabout.com used to. That is why it's sad to see it go. I think it is also safe to say that W3C's own validator is pretty outdated and useless because of the same reason:

Re: What happened to my trusted Turtle validator and converter?

Oh noes :( I was using it all the time as well. Martynas graphityhq.com On Apr 27, 2014 5:23 PM, Frans Knibbe | Geodan frans.kni...@geodan.nl wrote: Hi! I really liked the RDF validator and converter at http://www.rdfabout.com/demo/validator/. I used it often to validate the Turtle I wrote

Re: How to avoid that collections break relationships

Vuk, If URIs like /alice identify documents, then your example treats documents as persons. In other words, you conflate information resources and real-world resources. Martynas graphityhq.com On Mar 25, 2014 11:35 AM, Vuk Milicic vuk.mili...@eurecom.fr wrote: Hi Markus, How about this:

Re: Is the same video but in different encodings the owl:sameAs?

Thomas, then the HTML5 controls don't make sense, in my opinion, as the defeat the purpose of content negotiation. It's hard for me to take that specification seriously anymore. You could have a single video resource URI and choose the representation format based on Accept headers. You need to

Re: DOM for RDF?

Richard, I think Graphity is close to what you're looking for: https://github.com/Graphity/graphity-browser It supports SPARQL Protocol and Graph Store Protocol, content negotiation, XSLT transformations of RDF output and RDF input user interface using RDF/POST

Re: representing hypermedia controls in RDF

Markus, in the Linked Data context, what is the difference between identifier and hyperlink? Last time I checked, URIs were opaque and there was no such distinction. Martynas On Thu, Nov 21, 2013 at 6:43 PM, Markus Lanthaler markus.lantha...@gmx.net wrote: +public-hydra since there are a

Re: representing hypermedia controls in RDF

Hey Ruben, regarding RFC6570, I'm not planning to adopt it, since the specification is better suited for building URIs, not matching them (1.4 Limitations): In general, regular expression languages are better suited for variable matching I'm using JAX-RS syntax since it can be used for matching

Re: representing hypermedia controls in RDF

: mca.amundsen http://amundsen.com/blog/ http://twitter.com/mamund https://github.com/mamund http://www.linkedin.com/in/mamund On Fri, Nov 22, 2013 at 10:13 AM, Markus Lanthaler markus.lantha...@gmx.net wrote: Hi Martynas, On Friday, November 22, 2013 3:12 PM, Martynas Jusevičius wrote

Re: representing hypermedia controls in RDF

Ruben, 2 things I'm aware of and have implemented: - URI templates: Linked Data API vocabulary https://code.google.com/p/linked-data-api/wiki/API_Vocabulary Graphity reuses api:uriTemplate and api:itemTemplate to match request URIs against ontology classes. The actual template syntax is reused

Re: Which datatype to use for time intervals

Lars, I'm using the Time ontology for this purpose: http://www.w3.org/TR/owl-time/ Martynas graphityhq.com On Tue, Nov 12, 2013 at 3:47 PM, Svensson, Lars l.svens...@dnb.de wrote: Is there a standard (recommended) datatype to use when I want to specify a time interval (e. g.

Re: Beginning work on an official Web Access Control spec.

Andrei, I would be interested. I have worked on ACL a lot recently, with a goal to produce a transparent JAX-RS authorization filter for our Graphity platform: http://graphity.org. I have successfully implemented the filter using W3C ACL ontology and plain SPARQL 1.1, but the code is

Re: WebID Frustration

Was following the thread, decided to jump in :) So how do I create a certificate? I have a FOAF profile and want to add it there. As Hugh pointed out, http://webid.myxwiki.org/xwiki/bin/view/WebId/CreateCert doesn't work. Is it still maintained? Martynas graphityhq.com On Tue, Aug 6, 2013 at

Re: Rendering RDF in interactive html forms

RDF/POST Encoding for RDF: http://www.lsrn.org/semweb/rdfpost.html Graphity includes a Jena-based RDF/POST parser. Martynas graphityhq.com On Wed, Jun 26, 2013 at 1:46 PM, Dominic Oldman do...@oldman.me.uk wrote: I am aware of RForms (https://code.google.com/p/rforms/) but are there also

Re: RDF's challenge

I disagree completely that RDF is not Web-native. Read-write RDF Linked Data is the way the Web was supposed to be, in my opinion. Martynas On Jun 11, 2013 5:33 PM, Alvaro Graves alv...@graves.cl wrote: When talking to web developers, they tell me they find little benefit on using RDF. This is

Re: It is bad practice to consume Linked Data and not publish Linked Data

Hey Harry, HeltNormalt (http://heltnormalt.dk) is a danish entertainment content-publishing site built entirely on Linked Data principles, using Dydra triplestore (http://dydra.com) and Graphity Linked Data platform ( http://graphity.org). Content negotiation was not implemented because of

Re: It is bad practice to consume Linked Data and not publish Linked Data

/posts/Linked-Data-Connecting-together-the-BBCs-Online-Content Martynas graphity.org On Thu, Apr 4, 2013 at 3:04 PM, Harry Halpin hhal...@ibiblio.org wrote: On Thu, Apr 4, 2013 at 1:40 PM, Martynas Jusevičius marty...@graphity.org wrote: Hey Harry, HeltNormalt (http://heltnormalt.dk

Re: uri for uri

Shouldn't the path component of the URIs be percent-encoded? That is, http://uri4uri.net/uri/%0Ahttp%3A%2F%2Fdbpedia.org%2Fresource%2FCopenhagen instead of http://uri4uri.net/uri/http://dbpedia.org/resource/Copenhagen Martynas graphity.org On Mon, Apr 1, 2013 at 11:37 AM, Christopher

Re: How can I express containment/composition?

Hey Frans, Dublin Core Terms has some general properties for this: dct:hasPart http://dublincore.org/documents/dcmi-terms/#terms-hasPart dct:isPartOf http://dublincore.org/documents/dcmi-terms/#terms-isPartOf Martynas graphity.org On Thu, Feb 21, 2013 at 2:47 PM, Frans Knibbe | Geodan

Re: annotations and RDF

Matteo, if you want annotations interleaving with text, maybe you could use RDFa? Here's one of the first RDFa annotations Google hits: http://www.aclweb.org/anthology-new/R/R11/R11-2008.pdf Martynas graphity.org On Thu, Feb 7, 2013 at 3:43 PM, Matteo Casu mattec...@gmail.com wrote: Thank you

Re: Content negotiation for Turtle files

JSON is not a silver bullet. By only providing JSON, you cut off access for the whole XML toolchain. My related post on HackerNews: http://news.ycombinator.com/item?id=4417111 Martynas graphity.org On Wed, Feb 6, 2013 at 2:23 PM, William Waites w...@styx.org wrote: On Wed, 06 Feb 2013 11:45:10

Re: Querying different SPARQL endpoints

Hey Vishal, knowledge of structure can be useful but is not necessary. Probably the most common pitfall is not to check if named graphs were used. Your can try this query that handles both cases (default and named graphs): PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# PREFIX rdfs:

Re: Temporal analysis or RDF graph data

Hey Vishal, if you mean a triple store with built-in provenance metadata, I'm not aware of any that provide this out-of-the-box. However it should be possible to implement using SPARQL named graphs as this paper shows: http://static.usenix.org/event/tapp11/tech/final_files/Halpin.pdf This is

Re: LD browser rot

Hey Sebastian, could you please try Graphity Browser: http://semanticreports.com/?uri=http%3A%2F%2Fdbpedia.org%2Fresource%2FLady_Gaga I'll send an email to Denny to add it to the list. Martynas http://graphity.org On Sat, Sep 22, 2012 at 12:34 PM, Sebastian Hellmann

Re: Linked Data publishing (LAMP) tool

Hey Dimitris, Graphity Browser has a UI, SPARQL endpoint and supports content negotiation: https://github.com/Graphity/graphity-browser Demo instance here: http://semanticreports.com It does not support data import as of yet, but it works out-of-the-box on SPARQL endpoints, so the researcher

[ANN] Graphity - making rapid development of Linked Data webapps easy

Hey all, I'm pleased to announce Graphity -- a fully extensible generic Linked Data platform for building end-user Web applications. Rationale == Graphity started as JAX-RS [JAX] and Jena-compatible framework, since there was a lack of RDF and Linked Data tools in PHP. It was created while

Re: Linked Data Demand Discussion Culture on this List, WAS: Introducing Semgel, a semantic database app for gathering analyzing data from websites

Hey all, speaking of (business) use cases for Linked Data, there is a number of them on W3C site: http://www.w3.org/2001/sw/sweo/public/UseCases/ However I needed to present a few cases as a minimal slide deck, so here it is -- maybe it will be helpful to someone:

Re: Linked Data Demand Discussion Culture on this List, WAS: Introducing Semgel, a semantic database app for gathering analyzing data from websites

Sebastian, all, I'm on your side here. But regarding Linked Data, consider the following points that slow down its adoption: - data-heavy players such as Facebook and Google might not be interested in adopting a new open, even if superior, data approach, since it is in their interest to keep as

Re: best practice RDF in HTML

Hey Sebastian, can't you simply use link rel=alternate type=application/rdf+xml href=recshop.rdf ? It's not embedding per se, but it's one of the patterns. More info here: http://linkeddatabook.com/editions/1.0/#htoc66 (section Making RDF Discoverable from HTML) Martynas graphity.org On Tue,