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Tag cloud facet is another way to display facets of your repository in a “tag cloud” "tag cloud" form in which the importance of each tag is show with font size or color. This format is useful for quickly perceiving the most prominent terms.

 

 This is a classic “tag cloud” "tag cloud" facet in a DSpace repository.

Discovery Changelist

DSpace 5.0

The new JSPUI-only tag cloud facet feature is disabled by default. In order to enable it, you will need to set up the corresponding processor that the PluginManager will load to actually perform the tag cloud query on the relevant pages. This is configured in the dspace.cfg configuration file using the following properties:

The tag cloud has been declared there for you but it is commented out.

DSpace 4.0 

Info
Starting from DSpace 4.0, Discovery is the default search and browse solution for DSpace.

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  • Sidebar browse facets that can be configured to use contents from any metadata field
    • Dynamically generated timespans for dates
  • Customizable "recent submissions" view on the repository homepage, collection and community pages
  • Hit highlighting & search snippets

DSpace 5.0

However, the tag cloud facet feature is disabled by default. In order to enable it, you will need to set up the corresponding processor that the PluginManager will load to actually perform the tag cloud query on the relevant pages. This is configured in the dspace.cfg configuration file with the following options:

The tag cloud has been declared there for you but it is commented out.

Enabling Discovery

Because Discovery was adopted as the default infrastructure for search and browse in DSpace 4, no manual steps are required to enable Discovery. If you want to enable Discovery on older versions of DSpace, please refer to the DSpace documentation for that particular version.

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Class:

DiscoveryConfigurationService

Purpose:

Defines the mapping between separate Discovery configurations and individual collections/communities

Default:

All communities, collections and the homepage (key=default) are mapped to defaultConfiguration

Class:

DiscoveryConfiguration

Purpose:

Groups configurations for sidebar facets, search filters, search sort options and recent submissions

Default:

There is one configuration by default called defaultConfiguration

Class:

DiscoverySearchFilter

Purpose:

Defines that specific metadata fields should be enabled as a search filter

Default:

dc.title, dc.contributor.author, dc.creator, dc.subject.* and dc.date.issued are defined as search filters

Class:

DiscoverySearchFilterFacet

Purpose:

Defines which metadata fields should be offered as a contextual sidebar browse options, each of these facets has also got to be a search filter

Default:

dc.contributor.author, dc.creator, dc.subject.* and dc.date.issued

Class:

HierarchicalSidebarFacetConfiguration

Purpose:

Defines which metadata fields contain hierarchical data and should be offered as a contextual sidebar option

Class:

DiscoverySortConfiguration

Purpose:

Further specifies the sort options to which a DiscoveryConfiguration refers

Default:

dc.title and dc.date.issued are defined as alternatives for sorting, other than Relevance (hard-coded)

Class:

DiscoveryHitHighlightingConfiguration

Purpose:

Defines which metadata fields can contain hit highlighting & search snippets

Default:

dc.title, dc.contributor.author, dc.subject, dc.description.abstract & full text from text files.

Class:

TagCloudFacetConfiguration

Purpose:Defines the tag cloud appearance configuration bean and the search filter facets to appear in the tag cloud form. You can have different "TagCloudFacetConfiguration" per community or collection or the home page

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https://cwiki.apache.org/confluence/display/solr/Spell+Checking

Customizing the

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"Tag Cloud" facet

This paragraph only applies to JSPUI

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Code Block
languagexml
<!--TagCloud configuration bean for homepage discovery configuration-->
<bean id="homepageTagCloudFacetConfiguration" class="org.dspace.discovery.configuration.TagCloudFacetConfiguration">
        <!-- Actual configuration of the tagcloud (colors, sorting, etc.) -->
        <property name="tagCloudConfiguration" ref="tagCloudConfiguration"/>
        <!-- List of tagclouds to appear, oveone for evryevery search filter, one after the other -->
        <property name="tagCloudFacets">
            <list>
                <ref bean="searchFilterSubject" />
            </list>
        </property>
</bean>

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