W3C home > Mailing lists > Public > public-dwbp-wg@w3.org > December 2015

dwbp-ISSUE-224: Multiple/Derived values of a metric [Quality & Granularity Vocabulary]

From: Data on the Web Best Practices Working Group Issue Tracker <sysbot+tracker@w3.org>
Date: Sun, 06 Dec 2015 16:28:55 +0000
To: public-dwbp-wg@w3.org
Message-Id: <E1a5cBD-0005ea-U2@deneb.w3.org>
dwbp-ISSUE-224: Multiple/Derived values of a metric [Quality & Granularity Vocabulary]

http://www.w3.org/2013/dwbp/track/issues/224

Raised by: Antoine Isaac
On product: Quality & Granularity Vocabulary

Raised in public comment by Werner Bailer
https://lists.w3.org/Archives/Public/public-dwbp-comments/2015Oct/0019.html

[
a. multiple values of one metric

We found that there are metrics where a single output value may not be sufficient. In particular, this applies to statistics (which are listed as one dimension in the draft spec). For example, one may want to express the mean, min or max of a metric over a dataset, or providing an absolute and a relative (normalized) value for the same metric. Of course this could be done by defining multiple metrics, but then one would need a mechanism to group/link them or express their dependency. 

In the EBU, the working group on quality control [2] has defined a data model for the somewhat related problem of describing quality of audiovisual content (with XML serialisations so far, not RDF). This model supports multiple output values, that can be typed. For DQV, this could for example be achieved by having multiple values, and defining subproperties of daq:value.


[2] https://tech.ebu.ch/groups/qc
]
Received on Sunday, 6 December 2015 16:28:57 UTC

This archive was generated by hypermail 2.3.1 : Sunday, 6 December 2015 16:28:57 UTC