The dashlets will show semantic tags in all share sites when added to the overall Share dashboard, and show site specific semantic tags when added to site dashboards. Clicking on a tag in the semantic tag cloud or on a semantic tag map marker will take you to a search results list of documents with the semantic tag. The semantic tag cloud dashlet can be changed to show semantic tags for a specific category or all categories.
The semantic tag cloud dashlet is based on Will Abson’s tag cloud dashlet in the Alfresco Share Extras collection. Will now also has a Google map dashlet in this collection showing geo-location of photo files using Tika extracted metadata available in Alfresco 3.4.
The added auto-tag action menu (in more menu and details page) can be used to auto tag the selected document with the OpenCalais service. This action is added to both site document libraries and repository document library page menu.The auto-tagging action can also be setup in a content rule to auto-tag all documents in a folder in the rule UI of Alfresco Explorer or in Share (choose to perfom the action “Auto-tag with Calais”).
Note that semantic tags are implemented with categories with a custom root category. They won’t show up in regular Alfresco tag or category UI. Currently only the Alfresco Explorer details page will list semantic tags (update 3/30/2011: will now show up the Share doc details page too in the 1.3.1 version of the OpenCalais integration).
FlexSpaces, in addition to having the semantic tag clouds, semantic map, and auto-tag action features in the Share UI, also has support for suggesting semantic tags and for editing what semantic tags are assigned to a document. See the semantic features in action in this screen-cam of an older version of FlexSpaces.