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Re: Quality Criteria for SKOS vocabularies

From: Parsa Mirhaji <pmirhaji@knowmed.com>
Date: Tue, 12 Apr 2011 11:14:44 -0500
Cc: HCLS <public-semweb-lifesci@w3.org>, "M. Scott Marshall" <mscottmarshall@gmail.com>
Message-Id: <3F5DDAC6-D88E-432C-9218-8AD35C1C6B26@knowmed.com>
To: christian.mader@univie.ac.at
this is indeed good. some observations/recommendations:
item VQC7 is not clearly defined. Multiple relations between same uri's is not necessarily a problem unless you specify the problematic situation. The example given is redundant with the next item (VQC8) based on the SKOS model defining the skos:broader and skos:narrower as pairwise disjoint properties. Hence an OWL-2 reasoning can check this out for inconsistency. 

other than that, I would suggest another quality metric that I use:
Weak Properties: properties that are not mapped to any of the annotation, hierarchic and semantic or mapping properties in defined by SKOS. that is, they state some fact about skos concepts, but not formally understood what kind of facts are they adding to the model? IMHO systematic differentiation between Terminological (terms and relationships between them), Taxonomic (hierarchical relations including set membership), and semantic relationships within the linked data is important for any vocabulary system including those that use skos for representation.

Another class of descriptive quality metrics that may be illustrative of the richness of the model would address the utilization and relative ratios/frequency of relations between terms (skos-xl allows this), relations between concepts and term (basically labels and definitions), and relations between concepts (semantic and hierarchies)...

Keep in touch,

Parsa Mirhaji, MD, PhD

On Apr 12, 2011, at 4:48 AM, M. Scott Marshall wrote:

FYI - These documents/links below could be part of the ongoing
discussion about improving the quality of RDF for life sciences data.


M. Scott Marshall, W3C HCLS IG co-chair, http://www.w3.org/blog/hcls

---------- Forwarded message ----------
From: Annika Flemming <annika.flemming@gmx.de>
Date: Tue, Apr 12, 2011 at 11:31 AM
Subject: Re: Quality Criteria for SKOS vocabularies
To: Christian Mader <christian.mader@univie.ac.at>
Cc: public-lod@w3.org, chris@bizer.de

Hi Christian,

nice work! As you mentioned my draft about Linked Data quality, you
might be interested in my finished thesis, which can be found here:
It's written in German.


Am 11.04.2011 08:46, schrieb Christian Mader:
> Hi,
> In the course of my PhD project at the University of Vienna I'm going to address the question how to programmatically support collaborative creation of "good-quality" SKOS vocabularies. I have found 14 criteria that, in my opinion, could be used to assess the quality of said vocabularies. It would be really helpful for me to get some community input on these criteria, so I published them here:
> https://github.com/cmader/qSKOS/wiki/Quality-Criteria-for-SKOS-Vocabularies
> Please feel free to post your comments and suggestions regarding that matter, every kind of input will be warmly appreciated.
> Best,
> Christian
Received on Tuesday, 12 April 2011 21:00:23 UTC

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