data schema / vocabulary / ontology / repositories
Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter -- Dieter Fensel Director STI Innsbruck, University of Innsbruck, Austria http://www.sti-innsbruck.at/ phone: +43-512-507-6488/5, fax: +43-512-507-9872
Re: data schema / vocabulary / ontology / repositories
To the best of my knowledge there isnt anything that one could call modern, updated out there. something modern and credible would be actual data + social backed (votes, comments, etc) . . as said in the past we in Sindice we'd be delighted to provide the data part if anyone wanted to coordinate the rest. Something based on pure data analysis will be made available shortly anyway. Gio On Sun, Mar 13, 2011 at 5:15 PM, Dieter Fensel dieter.fen...@sti2.at wrote: Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter -- Dieter Fensel Director STI Innsbruck, University of Innsbruck, Austria http://www.sti-innsbruck.at/ phone: +43-512-507-6488/5, fax: +43-512-507-9872
Re: data schema / vocabulary / ontology / repositories
Hi Dieter, there are several threads on SemanticOverflow that are dealing with this topic, e.g., this one [1] Cheers, Bob [1] http://www.semanticoverflow.com/questions/1039/where-can-i-find-useful-ontologies Am 13.03.2011 17:15, schrieb Dieter Fensel: Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter
Re: data schema / vocabulary / ontology / repositories
On 3/13/11 12:15 PM, Dieter Fensel wrote: Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter Dieter, Do you mean: I would a place where I can search for vocabularies and assess their usage across LOD datasets? Goal being reuse of existing terms re. new datasets coming into the burgeoning LOD cloud? If the above is true, the you can do the following: 1. Goto http://lod.openlinksw.com -- the live 15 Billion+ triples LOD Cloud Cache we maintain 2. Enter a text pattern (with Class, Property, or Vocabulary discovery in mind) 3. On receipt of the initial results page, use the Links in the Navigation section to filter by Type or other Attributes (so you are looking for Entities of type: Ontology or Class or Property 4. Once you find one of the Entity Types above, click on the describe link 5. At this point navigation should be obvious i.e. you can use isDefinedby to find the Ontology associated with Classes and Properties or use the inverse relations to find the Class and Properties defined by an Ontology. Hope this helps. -- Regards, Kingsley Idehen President CEO OpenLink Software Web: http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen
Re: data schema / vocabulary / ontology / repositories
Please try http://schemapedia.com/ and see if it meets your needs. On 13 Mar 2011 16:23, Dieter Fensel dieter.fen...@sti2.at wrote: Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter -- Dieter Fensel Director STI Innsbruck, University of Innsbruck, Austria http://www.sti-innsbruck.at/ phone: +43-512-507-6488/5, fax: +43-512-507-9872
Re: data schema / vocabulary / ontology / repositories
That gives me quite an interesting idea.. you could do some studies with queries to find what predicates were used to link common classes, e.g. link people to documents, to places, to other people... Kingsley Idehen wrote: On 3/13/11 12:15 PM, Dieter Fensel wrote: Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter Dieter, Do you mean: I would a place where I can search for vocabularies and assess their usage across LOD datasets? Goal being reuse of existing terms re. new datasets coming into the burgeoning LOD cloud? If the above is true, the you can do the following: 1. Goto http://lod.openlinksw.com -- the live 15 Billion+ triples LOD Cloud Cache we maintain 2. Enter a text pattern (with Class, Property, or Vocabulary discovery in mind) 3. On receipt of the initial results page, use the Links in the Navigation section to filter by Type or other Attributes (so you are looking for Entities of type: Ontology or Class or Property 4. Once you find one of the Entity Types above, click on the describe link 5. At this point navigation should be obvious i.e. you can use isDefinedby to find the Ontology associated with Classes and Properties or use the inverse relations to find the Class and Properties defined by an Ontology. Hope this helps. -- Regards, Kingsley Idehen President CEO OpenLink Software Web: http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen -- Christopher Gutteridge -- http://id.ecs.soton.ac.uk/person/1248 You should read the ECS Web Team blog: http://blogs.ecs.soton.ac.uk/webteam/
Re: data schema / vocabulary / ontology / repositories
Dear Kingsley, the context of my question is the following. The are of Ontologies had encountered a severe paradigm shift though LOD. In the old days you had plenty of design methodologies to develop Ontologies based on first principles from scratch (despite the fact that there was some verbal hand waving on reuse). Then Ontologies became populated by data. In the end it was always not really easy to explain what their difference was compared to a traditional data schema approach. Often it felt like in the tale of the The Emperor's New Clothes With LOD the data are suddenly the driving force. When published they are used to collect some ontological pieces here and there. It is obviously not a trivial task to select this pieces properly and it calls for new design guidelines to form these combined ontology snippets. What you propose is indeed somehow what I am looking for. However, your proposal is a bit procedural and not very much declarative and explicit. Probably I missed the fact that Yahoo failed but I still wonder, whether specific data repositories can be extracted, maintained, and made explicit. In this case, they would be data schema repositories. It would require some manual effort but it may not even be hard to figure out a business model for it around education and consultancy? Many greetings, Dieter At 18:47 13.03.2011, Kingsley Idehen wrote: On 3/13/11 12:15 PM, Dieter Fensel wrote: Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter Dieter, Do you mean: I would a place where I can search for vocabularies and assess their usage across LOD datasets? Goal being reuse of existing terms re. new datasets coming into the burgeoning LOD cloud? If the above is true, the you can do the following: 1. Goto http://lod.openlinksw.comhttp://lod.openlinksw.com -- the live 15 Billion+ triples LOD Cloud Cache we maintain 2. Enter a text pattern (with Class, Property, or Vocabulary discovery in mind) 3. On receipt of the initial results page, use the Links in the Navigation section to filter by Type or other Attributes (so you are looking for Entities of type: Ontology or Class or Property 4. Once you find one of the Entity Types above, click on the describe link 5. At this point navigation should be obvious i.e. you can use isDefinedby to find the Ontology associated with Classes and Properties or use the inverse relations to find the Class and Properties defined by an Ontology. Hope this helps. -- Regards, Kingsley Idehen President CEO OpenLink Software Web: http://www.openlinksw.comhttp://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehenhttp://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen -- Dieter Fensel Director STI Innsbruck, University of Innsbruck, Austria http://www.sti-innsbruck.at/ phone: +43-512-507-6488/5, fax: +43-512-507-9872
Re: data schema / vocabulary / ontology / repositories
Hello again, an issue that is strongly related to the raised concern is ontology marketing: I think, personal advice is still the best one here. It's horrible to find appropriate ontologies month after intensive searches, because they are hidden well in our universal information space. I suggest to work on a guide for ontology marketing or something like that, because is crucial to establish more easily shared understanding. (quote from an comment to an answer on SemanticOverflow [1]) Cheers, Bob [1] http://www.semanticoverflow.com/questions/2623/ontology-to-use-for-querying/2630#2630
RE: data schema / vocabulary / ontology / repositories
Dieter, There are many vocabulary/ontology repository efforts currently, though not just for linked data. You might look at BioPortal, for the biomedical community: http://www.bioontology.org/bioportal. There is the Open Ontology Repository (OOR), which is still emerging: http://ontolog.cim3.net/cgi-bin/wiki.pl?OpenOntologyRepository, and a number of other mostly early ontology repositories, most of which have briefed at the OOR sessions. Thanks, Leo -Original Message- From: semantic-web-requ...@w3.org [mailto:semantic-web-requ...@w3.org] On Behalf Of Dieter Fensel Sent: Sunday, March 13, 2011 12:16 PM To: Linked Data community; semantic-web Subject: data schema / vocabulary / ontology / repositories Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter -- Dieter Fensel Director STI Innsbruck, University of Innsbruck, Austria http://www.sti-innsbruck.at/ phone: +43-512-507-6488/5, fax: +43-512-507-9872
Re: data schema / vocabulary / ontology / repositories
On 3/13/11 6:44 PM, Dieter Fensel wrote: Dear Kingsley, the context of my question is the following. The are of Ontologies had encountered a severe paradigm shift though LOD. In the old days you had plenty of design methodologies to develop Ontologies based on first principles from scratch (despite the fact that there was some verbal hand waving on reuse). Then Ontologies became populated by data. In the end it was always not really easy to explain what their difference was compared to a traditional data schema approach. Often it felt like in the tale of the The Emperor's New Clothes Yes. The problem (as I've experienced it) is that people weren't able to read ontologies due to a dearth of tools. Imagine this sequence: 1. Someone announces a new ontology for a discourse realm 2. Postulates about its virtues. Problem (back in the day) is that you had raw RDF/XML (or some other format) and no instance data on the ABox side. With LOD the data are suddenly the driving force. When published they are used to collect some ontological pieces here and there. It is obviously not a trivial task to select this pieces properly and it calls for new design guidelines to form these combined ontology snippets. What you propose is indeed somehow what I am looking for. However, your proposal is a bit procedural and not very much declarative and explicit. Hmm.. I listed some steps instead of saying: 1. Go to the query UI and use it to perform faceted navigation over the URIBurner or LOD data spaces 2. Go to the SPARQL endpoint and perform a SPARQL query. You don't get more declarative than #2 :-) Probably I missed the fact that Yahoo failed but I still wonder, whether specific data repositories can be extracted, maintained, and made explicit. In this case, they would be data schema repositories. It would require some manual effort but it may not even be hard to figure out a business model for it around education and consultancy? Once folks are able to stumble across an ontology, read it, and even explore across the TBox and ABox dimensions, life gets much easier. Training gets much easier, uptake gets much easier, and most of all: value proposition articulation becomes easier on the part of the pitcher and fun on the part of the pitch recipient (current and future customers). Links: 1. http://linkeddata.uriburner.com/fct/facet.vsp?cmd=loadfsq_id=79 -- saved Ontology search with a list of Ontology URIs 2. http://linkeddata.uriburner.com/fct/facet.vsp?cmd=loadfsq_id=80 -- ditto with results filtered by Attributes 3. http://uriburner.com/describe/?url=http%3A%2F%2Fpurl.org%2Fgoodrelations%2Fv1p=12003lp=12002op=12001prev=gp=12003 -- GoodRelations with effect of TBox and ABox navigation re. follow-your-nose pattern 4. http://uriburner.com/PivotViewer/?url=http%3A%2F%2Furiburner.com%2Fc%2FDPXHL6%23%2524facet0%2524%3DreliesOn%26%2524view%2524%3D2 - VOAF 5. http://uriburner.com/PivotViewer/edit.vsp?url=http%3A%2F%2Furiburner.com%2Fc%2FDPXHL6%23%2524facet0%2524%3DreliesOn%26%2524view%2524%3D2%26%24tab%24%3D0%26%24zoom%24%3D2 - SPARQL Query behind the PivotViewer page . Kingsley Many greetings, Dieter At 18:47 13.03.2011, Kingsley Idehen wrote: On 3/13/11 12:15 PM, Dieter Fensel wrote: Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter Dieter, Do you mean: I would a place where I can search for vocabularies and assess their usage across LOD datasets? Goal being reuse of existing terms re. new datasets coming into the burgeoning LOD cloud? If the above is true, the you can do the following: 1. Goto http://lod.openlinksw.com -- the live 15 Billion+ triples LOD Cloud Cache we maintain 2. Enter a text pattern (with Class, Property, or Vocabulary discovery in mind) 3. On receipt of the initial results page, use the Links in the Navigation section to filter by Type or other Attributes (so you are looking for Entities of type: Ontology or Class or Property 4. Once you find one of the Entity Types above, click on the describe link 5. At this point navigation should be obvious i.e. you can use isDefinedby to find the Ontology associated with Classes and Properties or use the inverse relations to find the Class and Properties defined by an Ontology. Hope this helps. -- Regards, Kingsley Idehen President CEO OpenLink Software Web:http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen http://www.openlinksw.com/blog/%7Ekidehen Twitter/Identi.ca: kidehen -- Dieter Fensel Director STI Innsbruck, University of Innsbruck, Austria http://www.sti-innsbruck.at/ phone: +43-512-507-6488/5, fax: +43-512-507-9872 -- Regards, Kingsley Idehen President CEO
Re: data schema / vocabulary / ontology / repositories
On 3/13/11 7:24 PM, Obrst, Leo J. wrote: Dieter, There are many vocabulary/ontology repository efforts currently, though not just for linked data. You might look at BioPortal, for the biomedical community: http://www.bioontology.org/bioportal. There is the Open Ontology Repository (OOR), which is still emerging: http://ontolog.cim3.net/cgi-bin/wiki.pl?OpenOntologyRepository, and a number of other mostly early ontology repositories, most of which have briefed at the OOR sessions. Thanks, Leo Leo, I really like: http://www.bioontology.org/bioportal . Are there any RDF dumps or a SPARQL endpoint? If I have a URL for either I can get this data into our LOD cloud cache instance which will also help with discoverability etc.. Same goes to Ian re: http://schemapedia.com/ . Do you have a dump or a SPARQL endpoint? All: we are soon going to release RDF dumps and pre-configured Virtuoso instances for URIBurner, LOD, and other data spaces we've been constructing. Some of you may already have seen the DBpedia+BBC releases [1]. Links: 1. http://www.openlinksw.com/dataspace/kide...@openlinksw.com/weblog/kide...@openlinksw.com%27s%20BLOG%20%5B127%5D/1656 -- DBpedia+BBC pre-configured Virtuoso instance for you own data center setup 2. http://www.openlinksw.com/dataspace/kide...@openlinksw.com/weblog/kide...@openlinksw.com%27s%20BLOG%20%5B127%5D/1657 -- ditto via Amazon EC2 AMI + EBS Snapshot . Kingsley -Original Message- From: semantic-web-requ...@w3.org [mailto:semantic-web-requ...@w3.org] On Behalf Of Dieter Fensel Sent: Sunday, March 13, 2011 12:16 PM To: Linked Data community; semantic-web Subject: data schema / vocabulary / ontology / repositories Dear all, for a number of projects I was searching for vocabularies/Ontologies to describe linked data. Could you please recommend me places where to look for them? I failed to find a convenient entrance point for such kind of information. I only found some scattered information here and there? Thanks, Dieter -- Regards, Kingsley Idehen President CEO OpenLink Software Web: http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen
