Kevin Van de Velde created DS-1247:
--------------------------------------
Summary: World Bank Discovery improved taxonomies (implemented by
@mire)
Key: DS-1247
URL: https://jira.duraspace.org/browse/DS-1247
Project: DSpace
Issue Type: Improvement
Affects Versions: 3.0
Reporter: Kevin Van de Velde
Assignee: Kevin Van de Velde
Fix For: 3.0
Attachments: Figure 1.png, Figure 2.png, Figure 3.png
The World Bank uses predefined hierarchies for topics, document types, etc.
@mire has ported the controlled vocabularies (taxonomies) functionality to the
XMLUI, to represent these hierarchies. In addition, World Bank needs to be able
to optimally use these taxonomies as facets in Discovery. This includes several
challenges, such as when the hierarchical tree changes over time (values are
added, others removed or moved), situations can arise where items contain
hierarchical values which do no longer exist in the current hierarchical tree.
The World Bank is contributing the functionality for using taxonomies as facets
in Discovery.
In DSpace 1.8 the search facets taxonomy values are listed sorted by the number
of items with that exact taxonomy value, regardless of where they are in the
tree. (Fig 1.).
But this creates a problem as is displayed on Fig. 2
In DSpace 1.8, the taxonomy facet:
* Lists topics at any level of the tree next to each other
* Shows number of items that are associated with one particular node in the tree
Problem:
* This does not take hierarchical structure of the taxonomy into account
* This is counter-intuitive: when you filter by a topic, items related to
subtopics are not displayed
@mire has implemented an Improved taxonomy facet (Fig 3), contributed by the
World Bank:
* Only lists topics at the top level of the tree in the navigation bar
* Shows number of items that are associated with top level topic and any of its
sub-topics
* If item contains multiple topics that have the same parent topic, the parent
topic is counted only once
* Intuitive: when you filter by a topic, items related to subtopics are
automatically included
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://jira.duraspace.org/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Dspace-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/dspace-devel
