Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-19 Thread Peter F. Patel-Schneider
I agree that a way forward would be to use a well-defined ontology, and set up 
themappings from infoboxes to map into that ontologyinstead of the DBpedia 
ontology.   This would require, I think, a more powerfulmapping technology, 
one that can use arbitrary combinations of the infobox information to 
determine the correct classes to map an infobox to.

However, another way forward would be to continue to use a small ontology, 
essentially a fixed version of the DBpedia ontology. A small ontology is 
better here, I think, than a large ontology, because a large ontology presents 
too many choices for mappings. However, it may be that a large ontology is 
requiredbecause each language needs slightly different targets for many of its 
infoboxes.

peter




On 04/15/2014 07:16 PM, Mike Bergman wrote:
 Hi Peter,

 My observation is that crowdsourced knowledge bases (namely, Wikipedia, 
 DBpedia, schema.org, Freebase, etc) can be excellent sources for the 
 description and characterization of things and entities, but the structures 
 that may be derived from them will by definition be incoherent at the TBox 
 level.

 Exhortations to many contributors to be more coherent at a structural level 
 are not likely, I believe, to meet with much success. The motivations of 
 contributors and editors are most often local within the KB space. Thus, in 
 microcosm, many parts of these KBs can look pretty good, but when the scope 
 extends more broadly across the KB, the coherence breaks down. There aren't 
 many advocates for structure-wide coherence.

 As an advocate for structure-wide coherence and one who is not afraid to 
 wade into the fray, perhaps you can work some useful magic. I'm dubious, but 
 I truly wish you luck.

 Our approach, which we have been working on for some years episodically, 
 with another episode due shortly, is to use a coherent structure (UMBEL, in 
 our approach, which is a faithful, simplified subset of Cyc) to provide the 
 TBox, and then to find defensible ways to map the entity and concept 
 information in crowdsourced KBs to that structure.

 We have been talking about this for so long that it is time for us to 
 complete our initial development and put something forward that you and 
 others can similarly scrutinize. We hope to have something useful by this 
 summer.

 Thanks, Mike

 On 4/15/2014 6:55 PM, Patel-Schneider, Peter wrote:
 Hmm.

 Well, perhaps one could argue that there should be no hierarchy at all.

 Using the DBpedia ontology does commit you to a lot of things, many of them 
 quite questionable.  For example, in the DBpedia ontology churches are 
 buildings, which is not true for many churches, and not even true for the 
 physical location associated with many churches.  This is one of the things 
 that I think needs to be changed.

 peter


 On Apr 15, 2014, at 4:57 PM, Paul Houle ontolo...@gmail.com
   wrote:

 I try not to get hung up on the idea of having one right hierarchy but
 assume most end users will need to interpret the types that exist in
 the way that makes sense for what they are doing.

 The idea of foaf:Agent,  which is a superclass of both person and
 organization,  is a powerful concept because of properties shared by
 these two things;  for instance,  either can be a party to a
 lawsuit.  Even in music you could say a brand like Michael Jackson
 is a team effort.

 On the other hand some people want :Flutist to be a subclass of
 :Person and it makes sense to say one person who plays the flute is a
 :Flutist but you can't say that a trio that all plays the flute is a
 :Flutist.  Everybody has some theorem they expect the system to prove
 and they won't accept your axiom set unless you can prove their
 theorem with it.

 On Tue, Apr 15, 2014 at 6:51 PM, Patel-Schneider, Peter
 peter.patel-schnei...@nuance.com wrote:
 schema.org is controlled by the schema.org partners, Google, Yahoo!, 
 Bing, and Yandex. Contributions from the community are accepted, but are 
 vetted before being added to schema.org

 See http://schema.org for more information.


 One problem with alignment to schema.org is that the formal meaning of 
 the schema.org ontology is unusual and not fully explained.

 peter



 On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:

 Dear Peter

 For eyes of ontologists, it is well known that DBpedia ontology is
 incorrect, but I have never check about the contents of schema.org. Thank
 you for the info.

 I am planning to correct trustable ontologies like schema.org, but I do 
 not
 know how to revise or advice the contents of schema.org.

 Does anyone know it? Or does anyone have interest the portal sites of
 trustable ontologies?

 Seiji Koide

 -Original Message-
 From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
 Sent: Tuesday, April 15, 2014 1:50 PM
 To: dbpedia-discussion@lists.sourceforge.net
 Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org 
 from
 MusicalArtist

Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-16 Thread Kingsley Idehen

On 4/15/14 8:55 PM, Patel-Schneider, Peter wrote:

Hmm.

Well, perhaps one could argue that there should be no hierarchy at all.

Using the DBpedia ontology does commit you to a lot of things, many of them 
quite questionable.  For example, in the DBpedia ontology churches are 
buildings, which is not true for many churches, and not even true for the 
physical location associated with many churches.  This is one of the things 
that I think needs to be changed.

peter


You can triangulate around these issues via other TBoxes that provide 
context lenses into DBpedia. Example, using YAGO which ultimately 
connects to DBpedia via an owl:sameAs relation in the ABox.


[1] http://lod.openlinksw.com/c/G2D6HBO -- YAGO lenses on Church

[2] 
http://lod.openlinksw.com/describe/?url=http%3A%2F%2Fyago-knowledge.org%2Fresource%2FFreewill_Baptist_Church-Peoples_Baptist_Church-New_Hope_Churchgraph=http%3A%2F%2Fwww.mpi-inf.mpg.de%2Fyago-naga%2Fyago%2Fdownload%2Fyago%2Fyago2s_ttl.7z 
-- actual owl:sameAs relation that has a DBpedia entity as its object


[3] 
http://lod.openlinksw.com/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FFreewill_Baptist_Church-Peoples_Baptist_Church-New_Hope_Churchgraph=http%3A%2F%2Fwww.mpi-inf.mpg.de%2Fyago-naga%2Fyago%2Fdownload%2Fyago%2Fyago2s_ttl.7z 
-- which basically indicates to me that we might even be missing some 
DBpedia data in our LOD Cloud cache since the DBpedia entity URI does 
indeed resolve to a DBpedia entity description document


[4] 
http://lod.openlinksw.com/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FFreewill_Baptist_Church-Peoples_Baptist_Church-New_Hope_Churchsas=yesgraph=http%3A%2F%2Fwww.mpi-inf.mpg.de%2Fyago-naga%2Fyago%2Fdownload%2Fyago%2Fyago2s_ttl.7z 
-- here I've enables owl:sameAs inference context (via sas=yes added to 
the URL) which brings us full cycle (notice all the objects of the 
rdf:type relation, inherited from YAGO, dynamically).


I always look at this entire Linked Data affair as a useful jigsaw 
puzzle game re. TBox, RBox, and ABox.


Anyway, your contributions are certainly going to be useful, in whatever 
form they take :-)



Kingsley



On Apr 15, 2014, at 4:57 PM, Paul Houle ontolo...@gmail.com
  wrote:


I try not to get hung up on the idea of having one right hierarchy but
assume most end users will need to interpret the types that exist in
the way that makes sense for what they are doing.

The idea of foaf:Agent,  which is a superclass of both person and
organization,  is a powerful concept because of properties shared by
these two things;  for instance,  either can be a party to a
lawsuit.  Even in music you could say a brand like Michael Jackson
is a team effort.

On the other hand some people want :Flutist to be a subclass of
:Person and it makes sense to say one person who plays the flute is a
:Flutist but you can't say that a trio that all plays the flute is a
:Flutist.  Everybody has some theorem they expect the system to prove
and they won't accept your axiom set unless you can prove their
theorem with it.

On Tue, Apr 15, 2014 at 6:51 PM, Patel-Schneider, Peter
peter.patel-schnei...@nuance.com wrote:

schema.org is controlled by the schema.org partners, Google, Yahoo!, Bing, and 
Yandex.  Contributions from the community are accepted, but are vetted before 
being added to schema.org

See http://schema.org for more information.


One problem with alignment to schema.org is that the formal meaning of the 
schema.org ontology is unusual and not fully explained.

peter



On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:


Dear Peter

For eyes of ontologists, it is well known that DBpedia ontology is
incorrect, but I have never check about the contents of schema.org. Thank
you for the info.

I am planning to correct trustable ontologies like schema.org, but I do not
know how to revise or advice the contents of schema.org.

Does anyone know it? Or does anyone have interest the portal sites of
trustable ontologies?

Seiji Koide

-Original Message-
From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
Sent: Tuesday, April 15, 2014 1:50 PM
To: dbpedia-discussion@lists.sourceforge.net
Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
MusicalArtist

The ontology says that MusicalArtist is a subclass of schema.org:MusicGroup.

This seemed very odd to me, but then I looked at schema.org and noticed that
schema.org:MusicGroup can also be for *solo* artists.  However,
MusicalArtist is for any musical artist, not just soloists. So this mapping
still looks incorrect.

peter

--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech

Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-16 Thread Paul Houle
 is unusual and not fully explained.

 peter



 On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:

 Dear Peter

 For eyes of ontologists, it is well known that DBpedia ontology is
 incorrect, but I have never check about the contents of schema.org. Thank
 you for the info.

 I am planning to correct trustable ontologies like schema.org, but I do not
 know how to revise or advice the contents of schema.org.

 Does anyone know it? Or does anyone have interest the portal sites of
 trustable ontologies?

 Seiji Koide

 -Original Message-
 From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
 Sent: Tuesday, April 15, 2014 1:50 PM
 To: dbpedia-discussion@lists.sourceforge.net
 Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
 MusicalArtist

 The ontology says that MusicalArtist is a subclass of 
 schema.org:MusicGroup.

 This seemed very odd to me, but then I looked at schema.org and noticed 
 that
 schema.org:MusicGroup can also be for *solo* artists.  However,
 MusicalArtist is for any musical artist, not just soloists. So this mapping
 still looks incorrect.

 peter




-- 
Paul Houle
Expert on Freebase, DBpedia, Hadoop and RDF
(607) 539 6254paul.houle on Skype   ontolo...@gmail.com

--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
___
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https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion


Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-16 Thread Kingsley Idehen
 their
theorem with it.

On Tue, Apr 15, 2014 at 6:51 PM, Patel-Schneider, Peter
peter.patel-schnei...@nuance.com wrote:

schema.org is controlled by the schema.org partners, Google, Yahoo!, Bing, and 
Yandex.  Contributions from the community are accepted, but are vetted before 
being added to schema.org

See http://schema.org for more information.


One problem with alignment to schema.org is that the formal meaning of the 
schema.org ontology is unusual and not fully explained.

peter



On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:


Dear Peter

For eyes of ontologists, it is well known that DBpedia ontology is
incorrect, but I have never check about the contents of schema.org. Thank
you for the info.

I am planning to correct trustable ontologies like schema.org, but I do not
know how to revise or advice the contents of schema.org.

Does anyone know it? Or does anyone have interest the portal sites of
trustable ontologies?

Seiji Koide

-Original Message-
From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
Sent: Tuesday, April 15, 2014 1:50 PM
To: dbpedia-discussion@lists.sourceforge.net
Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
MusicalArtist

The ontology says that MusicalArtist is a subclass of schema.org:MusicGroup.

This seemed very odd to me, but then I looked at schema.org and noticed that
schema.org:MusicGroup can also be for *solo* artists.  However,
MusicalArtist is for any musical artist, not just soloists. So this mapping
still looks incorrect.

peter






--

Regards,

Kingsley Idehen 
Founder  CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter Profile: https://twitter.com/kidehen
Google+ Profile: https://plus.google.com/+KingsleyIdehen/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen







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Graph Databases is the definitive new guide to graph databases and their
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this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech___
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Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-15 Thread Patel-Schneider, Peter
schema.org is controlled by the schema.org partners, Google, Yahoo!, Bing, and 
Yandex.  Contributions from the community are accepted, but are vetted before 
being added to schema.org

See http://schema.org for more information.


One problem with alignment to schema.org is that the formal meaning of the 
schema.org ontology is unusual and not fully explained.

peter



On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:

 Dear Peter
 
 For eyes of ontologists, it is well known that DBpedia ontology is
 incorrect, but I have never check about the contents of schema.org. Thank
 you for the info. 
 
 I am planning to correct trustable ontologies like schema.org, but I do not
 know how to revise or advice the contents of schema.org.
 
 Does anyone know it? Or does anyone have interest the portal sites of
 trustable ontologies?
 
 Seiji Koide
 
 -Original Message-
 From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com] 
 Sent: Tuesday, April 15, 2014 1:50 PM
 To: dbpedia-discussion@lists.sourceforge.net
 Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
 MusicalArtist
 
 The ontology says that MusicalArtist is a subclass of schema.org:MusicGroup.
 
 This seemed very odd to me, but then I looked at schema.org and noticed that
 schema.org:MusicGroup can also be for *solo* artists.  However,
 MusicalArtist is for any musical artist, not just soloists. So this mapping
 still looks incorrect.
 
 peter
 
 
 
 --
 Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the
 definitive new guide to graph databases and their applications. Written by
 three acclaimed leaders in the field, this first edition is now available.
 Download your free book today!
 http://p.sf.net/sfu/NeoTech
 ___
 Dbpedia-discussion mailing list
 Dbpedia-discussion@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
 


--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
___
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Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-15 Thread Paul Houle
I try not to get hung up on the idea of having one right hierarchy but
assume most end users will need to interpret the types that exist in
the way that makes sense for what they are doing.

The idea of foaf:Agent,  which is a superclass of both person and
organization,  is a powerful concept because of properties shared by
these two things;  for instance,  either can be a party to a
lawsuit.  Even in music you could say a brand like Michael Jackson
is a team effort.

On the other hand some people want :Flutist to be a subclass of
:Person and it makes sense to say one person who plays the flute is a
:Flutist but you can't say that a trio that all plays the flute is a
:Flutist.  Everybody has some theorem they expect the system to prove
and they won't accept your axiom set unless you can prove their
theorem with it.

On Tue, Apr 15, 2014 at 6:51 PM, Patel-Schneider, Peter
peter.patel-schnei...@nuance.com wrote:
 schema.org is controlled by the schema.org partners, Google, Yahoo!, Bing, 
 and Yandex.  Contributions from the community are accepted, but are vetted 
 before being added to schema.org

 See http://schema.org for more information.


 One problem with alignment to schema.org is that the formal meaning of the 
 schema.org ontology is unusual and not fully explained.

 peter



 On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:

 Dear Peter

 For eyes of ontologists, it is well known that DBpedia ontology is
 incorrect, but I have never check about the contents of schema.org. Thank
 you for the info.

 I am planning to correct trustable ontologies like schema.org, but I do not
 know how to revise or advice the contents of schema.org.

 Does anyone know it? Or does anyone have interest the portal sites of
 trustable ontologies?

 Seiji Koide

 -Original Message-
 From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
 Sent: Tuesday, April 15, 2014 1:50 PM
 To: dbpedia-discussion@lists.sourceforge.net
 Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
 MusicalArtist

 The ontology says that MusicalArtist is a subclass of schema.org:MusicGroup.

 This seemed very odd to me, but then I looked at schema.org and noticed that
 schema.org:MusicGroup can also be for *solo* artists.  However,
 MusicalArtist is for any musical artist, not just soloists. So this mapping
 still looks incorrect.

 peter


 
 --
 Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the
 definitive new guide to graph databases and their applications. Written by
 three acclaimed leaders in the field, this first edition is now available.
 Download your free book today!
 http://p.sf.net/sfu/NeoTech
 ___
 Dbpedia-discussion mailing list
 Dbpedia-discussion@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion



 --
 Learn Graph Databases - Download FREE O'Reilly Book
 Graph Databases is the definitive new guide to graph databases and their
 applications. Written by three acclaimed leaders in the field,
 this first edition is now available. Download your free book today!
 http://p.sf.net/sfu/NeoTech
 ___
 Dbpedia-discussion mailing list
 Dbpedia-discussion@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion



-- 
Paul Houle
Expert on Freebase, DBpedia, Hadoop and RDF
(607) 539 6254paul.houle on Skype   ontolo...@gmail.com

--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
___
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Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-15 Thread Patel-Schneider, Peter
Hmm.

Well, perhaps one could argue that there should be no hierarchy at all.

Using the DBpedia ontology does commit you to a lot of things, many of them 
quite questionable.  For example, in the DBpedia ontology churches are 
buildings, which is not true for many churches, and not even true for the 
physical location associated with many churches.  This is one of the things 
that I think needs to be changed.

peter


On Apr 15, 2014, at 4:57 PM, Paul Houle ontolo...@gmail.com
 wrote:

 I try not to get hung up on the idea of having one right hierarchy but
 assume most end users will need to interpret the types that exist in
 the way that makes sense for what they are doing.
 
 The idea of foaf:Agent,  which is a superclass of both person and
 organization,  is a powerful concept because of properties shared by
 these two things;  for instance,  either can be a party to a
 lawsuit.  Even in music you could say a brand like Michael Jackson
 is a team effort.
 
 On the other hand some people want :Flutist to be a subclass of
 :Person and it makes sense to say one person who plays the flute is a
 :Flutist but you can't say that a trio that all plays the flute is a
 :Flutist.  Everybody has some theorem they expect the system to prove
 and they won't accept your axiom set unless you can prove their
 theorem with it.
 
 On Tue, Apr 15, 2014 at 6:51 PM, Patel-Schneider, Peter
 peter.patel-schnei...@nuance.com wrote:
 schema.org is controlled by the schema.org partners, Google, Yahoo!, Bing, 
 and Yandex.  Contributions from the community are accepted, but are vetted 
 before being added to schema.org
 
 See http://schema.org for more information.
 
 
 One problem with alignment to schema.org is that the formal meaning of the 
 schema.org ontology is unusual and not fully explained.
 
 peter
 
 
 
 On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:
 
 Dear Peter
 
 For eyes of ontologists, it is well known that DBpedia ontology is
 incorrect, but I have never check about the contents of schema.org. Thank
 you for the info.
 
 I am planning to correct trustable ontologies like schema.org, but I do not
 know how to revise or advice the contents of schema.org.
 
 Does anyone know it? Or does anyone have interest the portal sites of
 trustable ontologies?
 
 Seiji Koide
 
 -Original Message-
 From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
 Sent: Tuesday, April 15, 2014 1:50 PM
 To: dbpedia-discussion@lists.sourceforge.net
 Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
 MusicalArtist
 
 The ontology says that MusicalArtist is a subclass of schema.org:MusicGroup.
 
 This seemed very odd to me, but then I looked at schema.org and noticed that
 schema.org:MusicGroup can also be for *solo* artists.  However,
 MusicalArtist is for any musical artist, not just soloists. So this mapping
 still looks incorrect.
 
 peter

--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
___
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Dbpedia-discussion@lists.sourceforge.net
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Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-15 Thread Mike Bergman
Hi Peter,

My observation is that crowdsourced knowledge bases (namely, Wikipedia, 
DBpedia, schema.org, Freebase, etc) can be excellent sources for the 
description and characterization of things and entities, but the 
structures that may be derived from them will by definition be 
incoherent at the TBox level.

Exhortations to many contributors to be more coherent at a structural 
level are not likely, I believe, to meet with much success. The 
motivations of contributors and editors are most often local within the 
KB space. Thus, in microcosm, many parts of these KBs can look pretty 
good, but when the scope extends more broadly across the KB, the 
coherence breaks down. There aren't many advocates for structure-wide 
coherence.

As an advocate for structure-wide coherence and one who is not afraid to 
wade into the fray, perhaps you can work some useful magic. I'm dubious, 
but I truly wish you luck.

Our approach, which we have been working on for some years episodically, 
with another episode due shortly, is to use a coherent structure (UMBEL, 
in our approach, which is a faithful, simplified subset of Cyc) to 
provide the TBox, and then to find defensible ways to map the entity and 
concept information in crowdsourced KBs to that structure.

We have been talking about this for so long that it is time for us to 
complete our initial development and put something forward that you and 
others can similarly scrutinize. We hope to have something useful by 
this summer.

Thanks, Mike

On 4/15/2014 6:55 PM, Patel-Schneider, Peter wrote:
 Hmm.

 Well, perhaps one could argue that there should be no hierarchy at all.

 Using the DBpedia ontology does commit you to a lot of things, many of them 
 quite questionable.  For example, in the DBpedia ontology churches are 
 buildings, which is not true for many churches, and not even true for the 
 physical location associated with many churches.  This is one of the things 
 that I think needs to be changed.

 peter


 On Apr 15, 2014, at 4:57 PM, Paul Houle ontolo...@gmail.com
   wrote:

 I try not to get hung up on the idea of having one right hierarchy but
 assume most end users will need to interpret the types that exist in
 the way that makes sense for what they are doing.

 The idea of foaf:Agent,  which is a superclass of both person and
 organization,  is a powerful concept because of properties shared by
 these two things;  for instance,  either can be a party to a
 lawsuit.  Even in music you could say a brand like Michael Jackson
 is a team effort.

 On the other hand some people want :Flutist to be a subclass of
 :Person and it makes sense to say one person who plays the flute is a
 :Flutist but you can't say that a trio that all plays the flute is a
 :Flutist.  Everybody has some theorem they expect the system to prove
 and they won't accept your axiom set unless you can prove their
 theorem with it.

 On Tue, Apr 15, 2014 at 6:51 PM, Patel-Schneider, Peter
 peter.patel-schnei...@nuance.com wrote:
 schema.org is controlled by the schema.org partners, Google, Yahoo!, Bing, 
 and Yandex.  Contributions from the community are accepted, but are vetted 
 before being added to schema.org

 See http://schema.org for more information.


 One problem with alignment to schema.org is that the formal meaning of the 
 schema.org ontology is unusual and not fully explained.

 peter



 On Apr 14, 2014, at 10:08 PM, 小出 誠二 seijikoi...@gmail.com wrote:

 Dear Peter

 For eyes of ontologists, it is well known that DBpedia ontology is
 incorrect, but I have never check about the contents of schema.org. Thank
 you for the info.

 I am planning to correct trustable ontologies like schema.org, but I do not
 know how to revise or advice the contents of schema.org.

 Does anyone know it? Or does anyone have interest the portal sites of
 trustable ontologies?

 Seiji Koide

 -Original Message-
 From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
 Sent: Tuesday, April 15, 2014 1:50 PM
 To: dbpedia-discussion@lists.sourceforge.net
 Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
 MusicalArtist

 The ontology says that MusicalArtist is a subclass of 
 schema.org:MusicGroup.

 This seemed very odd to me, but then I looked at schema.org and noticed 
 that
 schema.org:MusicGroup can also be for *solo* artists.  However,
 MusicalArtist is for any musical artist, not just soloists. So this mapping
 still looks incorrect.

 peter

 --
 Learn Graph Databases - Download FREE O'Reilly Book
 Graph Databases is the definitive new guide to graph databases and their
 applications. Written by three acclaimed leaders in the field,
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Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-15 Thread Peter F. Patel-Schneider
 of schema.org. Thank
 you for the info.

 I am planning to correct trustable ontologies like schema.org, but I do 
 not
 know how to revise or advice the contents of schema.org.

 Does anyone know it? Or does anyone have interest the portal sites of
 trustable ontologies?

 Seiji Koide

 -Original Message-
 From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com]
 Sent: Tuesday, April 15, 2014 1:50 PM
 To: dbpedia-discussion@lists.sourceforge.net
 Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org 
 from
 MusicalArtist

 The ontology says that MusicalArtist is a subclass of 
 schema.org:MusicGroup.

 This seemed very odd to me, but then I looked at schema.org and noticed 
 that
 schema.org:MusicGroup can also be for *solo* artists. However,
 MusicalArtist is for any musical artist, not just soloists. So this 
 mapping
 still looks incorrect.

 peter

 --
 Learn Graph Databases - Download FREE O'Reilly Book
 Graph Databases is the definitive new guide to graph databases and their
 applications. Written by three acclaimed leaders in the field,
 this first edition is now available. Download your free book today!
 http://p.sf.net/sfu/NeoTech
 ___
 Dbpedia-discussion mailing list
 Dbpedia-discussion@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion



--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
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Re: [Dbpedia-discussion] probably incorrect mapping to schema.org from MusicalArtist

2014-04-14 Thread 小出 誠二
Dear Peter

For eyes of ontologists, it is well known that DBpedia ontology is
incorrect, but I have never check about the contents of schema.org. Thank
you for the info. 

I am planning to correct trustable ontologies like schema.org, but I do not
know how to revise or advice the contents of schema.org.

Does anyone know it? Or does anyone have interest the portal sites of
trustable ontologies?

Seiji Koide

-Original Message-
From: Patel-Schneider, Peter [mailto:peter.patel-schnei...@nuance.com] 
Sent: Tuesday, April 15, 2014 1:50 PM
To: dbpedia-discussion@lists.sourceforge.net
Subject: [Dbpedia-discussion] probably incorrect mapping to schema.org from
MusicalArtist

The ontology says that MusicalArtist is a subclass of schema.org:MusicGroup.

This seemed very odd to me, but then I looked at schema.org and noticed that
schema.org:MusicGroup can also be for *solo* artists.  However,
MusicalArtist is for any musical artist, not just soloists. So this mapping
still looks incorrect.

peter



--
Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the
definitive new guide to graph databases and their applications. Written by
three acclaimed leaders in the field, this first edition is now available.
Download your free book today!
http://p.sf.net/sfu/NeoTech
___
Dbpedia-discussion mailing list
Dbpedia-discussion@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion


--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
___
Dbpedia-discussion mailing list
Dbpedia-discussion@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion