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

From: Anja Jentzsch <anja@anjeve.de>
Date: Tue, 11 Aug 2009 13:23:48 +0200
Message-ID: <4A8154C4.8050507@anjeve.de>
To: Kingsley Idehen <kidehen@openlinksw.com>
CC: Kavitha Srinivas <ksrinivs@gmail.com>, Tim Finin <finin@cs.umbc.edu>, "public-lod@w3.org" <public-lod@w3.org>, "dbpedia-discussion@lists.sourceforge.net" <dbpedia-discussion@lists.sourceforge.net>, Chris Bizer <chris@bizer.de>
Hi Kingsley, hi Kavitha,

we will generate a new dump covering all YAGO Freebase relations with at 
least 95% probability, using skos:narrower as proposed by Tim.
I will let you know, when the file is available for download.


Kingsley Idehen schrieb:
> Kavitha Srinivas wrote:
>> I will fix the URIs.. I believe the equivalenceClass assertions were 
>> added in by someone at OpenLink (I just sent the raw file with the 
>> conditional probabilities for each pair of types that were above the 
>> .80 threshold).  So can whoever uploaded the file fix the property to 
>> what Tim suggested?
> Hmm,  I didn't touch the file, neither did anyone else at OpenLink. I 
> just downloaded what was uploaded at: 
> http://wiki.dbpedia.org/Downloads33, any based on my own personal best 
> practices, put the data in a separate Named Graph :-)
> Chris/Anja: I believe this data set was touched on your end, right? 
> Please make the fixes in line with the findings from the conversation on 
> this thread. Once corrected, I or someone else will reload.
> Kingsley
>> Thanks!
>> Kavitha
>> On Aug 10, 2009, at 5:03 PM, Kingsley Idehen wrote:
>>> 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 Tuesday, 11 August 2009 11:24:25 UTC

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