Facet selection and description
- About facets (in German, includes a definition of facet, search facet, and display facet)
- List of facets desired by CLARIN-D centers
- List of facets with ISO-CAT info (incomplete)
- Time Coverage: Definition, Use Cases, VLO Interface, Data Categories, Components
Exploiting ISOcat data categories
Currently (January 2014) the VLO relies on two separate strategies for MD selection to populate its facets:
- ISOcat DCs associated with a MD field in the underlying CMDI profile
- a set of centre specific XPaths for CMDI instances to
- explicitly select MD fields for inclusion in a facet that was not matched by a ISOcat DC (white list)
- explicitly discard MD fields that were selected via their ISOcat DC (black list)
Ideally, strategy 1 should suffice for proper MD selection for the facets. To fix the current state of the MD instances and the VLO we will have to answer the questions:
- Does VLO rely on appropriate, i.e. sufficiently concrete defined ISOcat DCs? Obviously DCs like http://www.isocat.org/datcat/DC-2482 (language ID) or http://www.isocat.org/datcat/DC-2484 (language name) are semantically too vague and don't allow for the differentiation between the language a resource is written in or the language of an actor in case of transcribed recordings and so on.
- Solution: Only use narrowly defined DCs for VLO facets.
- Task: Evaluate the current mapping of ISOcat DCs to VlO facets
- Do CMDI profiles use sufficiently concrete ISOcat DCs?
- Task: Create an overview of the DCs actually used by the centres.
- Task: Evaluate the whitelist/blackclist XPaths with respect to why they are needed (to select vaguely defined DCs? to select MD fields that don't have a DC associated? anything else?) Axel Herold?: I will prepare such a list.
- Task: Propose the adoption of container DCs for profiles that rely on vaguely defined DCs
Last modified 10 years ago
Last modified on 10/31/14 13:51:58
Attachments (4)
-
facets.ods (15.5 KB) - added by 10 years ago.
Summary of desired facets for the VLO (15.10.2013)
-
VLO_facets.pdf (30.4 KB) - added by 10 years ago.
VLO facets with ISO Cats (9.10.2013)
-
time_coverage.pdf (241.8 KB) - added by 10 years ago.
Time Coverage: Definition, Use Cases, VLO Interface, Data Categories, Components
-
fassetten.pdf (191.9 KB) - added by 10 years ago.
About facets (in German)
Download all attachments as: .zip