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The Halo extension

The Halo extension is an extension to Semantic MediaWiki (SMW) and has been developed as a part of Project Halo[1] in order to facilitate the use of Semantic Wikis for a large community of users. Main focus of the development was to create tools that increase the ease of use of SMW features and advertise the immediate benefits of semantically enriched content. Halo and related extensions are both available as stand alone packages and as a pre-packaged bundle (called SMW+), which can be deployed immediately.


The features of the Halo extension can be divided into three groups:

  1. Enhanced wiki browsing - features to ease and speed up navigation and access to articles, as well as semantic data, in the wiki
  2. Improved knowledge authoring - features to allow easy and expressive adding of semantic data to the wiki
  3. Simplified knowledge retrieval - features to query semantic data and access information stored in the wiki
Navigation Features
  • GUI-based ontology browser, enabling intuitive browsing and adaption of the wiki's ontology and lookup of instance and property information
The ontology browser
Authoring Features
  • Auto-completion, suggesting instances, properties, categories, or templates while typing to give possible matches
  • Semantic Toolbar, allowing to quickly inspect, create and alter the semantic annotations of a wiki article
  • Advanced Annotation Mode, for annotating contents semantically in a WYSIWYG-like manner without having to cope with the wiki source text
The annotation mode allows the convenient adding of semantic annotations
Retrieval Features
  • Graphical query interface, empowering users to easily compose queries and preview query results with different output formats
The query interface allows easy assembling of complex queries



File:Download.png Download Halo Extension
Image:ER_help.gif‎ Read documentation

Related Halo extensions

Several other extensions were created within Project Halo which enhance SMW and the Halo extension. Some of them can be applied with a plain SMW and do not require an installed Halo extension. This modular approach provides for a flexible architecture allowing to use only the needed features. Click here to get an overview of the related extensions.


References
  1. http://semanticweb.org/wiki/Project_Halo
This page was last modified on 15 July 2010, at 12:04.This page has been accessed 4,145 times.
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