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Re: data schema / vocabulary / ontology / repositories

From: Renaud Delbru <renaud.delbru@deri.org>
Date: Tue, 15 Mar 2011 16:00:10 +0000
Message-ID: <4D7F8D0A.3080406@deri.org>
To: Keith Alexander <k.j.w.alexander@gmail.com>
CC: Martin Hepp <martin.hepp@ebusiness-unibw.org>, Christopher Gutteridge <cjg@ecs.soton.ac.uk>, Dieter Fensel <dieter.fensel@sti2.at>, Kingsley Idehen <kidehen@openlinksw.com>, Linked Data community <public-lod@w3.org>, semantic-web <semantic-web@w3.org>
Hi Keith,

On 14/03/11 13:18, Keith Alexander wrote:
> On Mon, Mar 14, 2011 at 8:28 AM, Martin Hepp
> <martin.hepp@ebusiness-unibw.org>  wrote:
>> Hi Dieter:
>> There are several ontology repositories available on-line, but to my knowledge they all suffer from two serious limitations:
>> 1. They do not rate ontologies by quality/relevance/popularity, so you do not get any hint whether foaf:Organization or foo:Organization will be the best way to expose your data.
> Schemacache[1] used to order results by the number of documents
> Sindice found it it, but this wasn't terribly effective; what we want
> is  something more like "number of individual publishers using term X"
> rather than "number of individual documents using term X".

The new Sindice search frontend provides a first solution towards this 
problematic. Sindice allows you to group search results per domain. See 
[1,2] as examples. It is not yet perfect, nor optimal, but this is a 
first try, and this might be useful for your scenario.
We are currently focussing our effort in Sindice towards what we call 
dataset search. The dataset/domain grouping is a first step towards this 
big picture. We will add additional features in the future, like a more 
detailled summary of the datasets, e.g., its inter-relations with other 

[1] http://sindice.com/search?q=foaf%3Aperson&nq=&fq=&facet.field=domain
[2] http://sindice.com/search?q=owl%3Asameas&nq=&fq=&facet.field=domain

Renaud Delbru
Received on Tuesday, 15 March 2011 16:00:44 UTC

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