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Re: [ontolog-forum] Ontology-based database integration

To: "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: "Len Yabloko" <lenya@xxxxxxxxxxxxx>
Date: Tue, 13 Oct 2009 18:49:21 +0000
Message-id: <W584273852128791255459761@webmail39>
>Len Yabloko wrote:
>> Kingsley,
>>
>>   
>>> ....
>>> I don't have any time for PDFs. I like to deal with real problems and 
>>> show real solutions etc..
>>>
>>>     
>> It is hard to believe your statement above .You created more presentations 
>(PDFs) than solutions. Looking at all your presentations I don't see any 
>definition of "real problem" (unless you consider a marketing of immature 
>products to be a real problem).
>>
>> Len
>>
>>
>>   
>Len,
>
>In fact, to my chagrin,  I have far more solutions than I have 
>presentations.
>    (01)

Unless you are in management consulting business, - not everything that you 
produced is a solution (what is your definition?). Sometimes you just have to 
bother and read PDF or other document to understand the problem.    (02)

>You care completely misreading me, sadly.    (03)

I simply did not see a problem defined anywhere. Converting relational 
structures to graphs is not a problem. Using SQL is not a problem. Did you know 
that ANSI SQL can be used to query graphs?     (04)

>
>Look, its the year 2009, why spend time on PDFs when you can provide 
>links to problem and solution demos? As for PDFs, we only produce them 
>to match HTML resources (as alternative representations of content).
>    (05)

Linking data is indeed something useful. But only if can provide means for 
interpreting and manipulating the data.     (06)

>Give me links to data!
>    (07)

Sure. In this presentation of yours on slide 29-30 you are showing how to 
convert Northwind database into RDF graph (not explaining why, though)
http://www.authorstream.com/presentation/rumito-115284-open-conceptual-data-models-semweb-linkeddata-semanticweb-virtuoso-openlink-sparql-sql-dataportability-socialnetworking-science-technology-ppt-powerpoint/    (08)

There was actually a nice study conducted at the University of Oregon in 2006 
trying to integrate Northwind with another database containing similar 
information. You can download both and try to re-produce the same results.    (09)

http://aimlab.cs.uoregon.edu/benchmark/index.html    (010)



>Kingsley
>
>
>>
>>  
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>>   
>
>
>-- 
>
>
>Regards,
>
>Kingsley Idehen              Weblog: http://www.openlinksw.com/blog/~kidehen
>President & CEO 
>OpenLink Software     Web: http://www.openlinksw.com
>
>
>
>
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>    (011)



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