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Re: [Dbpedia-discussion] Fwd: Your message to Dbpedia-discussion awaits moderator approval

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Mon, 10 Aug 2009 17:03:00 -0400
Message-ID: <4A808B04.2040307@openlinksw.com>
To: Kavitha Srinivas <ksrinivs@gmail.com>
CC: Tim Finin <finin@cs.umbc.edu>, Anja Jentzsch <anja@anjeve.de>, "public-lod@w3.org" <public-lod@w3.org>, dbpedia-discussion@lists.sourceforge.net
Kavitha Srinivas wrote:
> Agree completely -- which is why I sent a base file which had the 
> conditional probabilities, the mapping, and the values to be able to 
> compute marginals.
> About the URIs, I should have added in my email that because freebase 
> types are not URIs, and have types such as /people/person, we added a 
> base URI: http://freebase.com to the types.  Sorry I missed mentioning 
> that...
> Kavitha
Kavitha,

If you apply the proper URIs, and then apply fixes to the mappings (from 
prior suggestions) we are set.  You can send me another dump and I will 
go one step further and put some sample SPARQL queries together which 
demonstrate how we can have many world views on the Web of Linked Data 
without anyone getting hurt in the process :-)

Kingsley
>
> On Aug 10, 2009, at 4:42 PM, Tim Finin wrote:
>
>> Kavitha Srinivas wrote:
>>> I understand what you are saying -- but some of this reflects the 
>>> way types are associated with freebase instances.  The types are 
>>> more like 'tags' in the sense that there is no hierarchy, but each 
>>> instance is annotated with multiple types.  So an artist would in 
>>> fact be annotated with person reliably (and probably less 
>>> consistently with /music/artist).  Similar issues with Uyhurs, 
>>> murdered children etc.  The issue is differences in modeling 
>>> granularity as well.  Perhaps a better thing to look at are types 
>>> where the YAGO types map to Wordnet (this is usually at a coarser 
>>> level of granularity).
>>
>> One way to approach this problem is to use a framework to mix logical
>> constraints with probabilistic ones.  My colleague Yun Peng has been
>> exploring integrating data backed by OWL ontologies with Bayesian 
>> information,
>> with applications for ontology mapping.  See [1] for recent papers on 
>> this
>> as well as a recent PhD thesis [2] that I think also may be relevant.
>>
>> [1] 
>> http://ebiquity.umbc.edu/papers/select/search/html/613a353a7b693a303b643a37383b693a313b643a303b693a323b733a303a22223b693a333b733a303a22223b693a343b643a303b7d/ 
>>
>> [2] 
>> http://ebiquity.umbc.edu/paper/html/id/427/Constraint-Generation-and-Reasoning-in-OWL 
>>
>
>
>


-- 


Regards,

Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Monday, 10 August 2009 21:03:42 UTC

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