Semantic Drilldown: Difference between revisions

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{{Software information
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== Introduction ==
 
{{Mediawiki extension
|name=Semantic Drilldown
|name=Semantic Drilldown
|logo=Placeholder.png
|developers=Jeroen De Dauw, Frank Dengler, Steren Giannini, James Hong Kong, Fabian Howahl, Yaron Koren, Markus Krötzsch, David Loomer, Joel Natividad, Denny Vrandecic, Nathan Yergler, others
|screenshot=Placeholder.png
|licences=GPL
|developers=Yaron Koren, David Loomer
|description=Semantic Result Formats (SRF) is a MediaWiki extension, used in conjunction with the Semantic MediaWiki extension, that bundles a number of further result formats for SMW's inline queries. The individual formats can be added to the installation independently.
|owners=Mediawiki.org
|mediawiki=Any recent version
|released=2007/12/10
|dependencies=Semantic MediaWiki
|related=Semantic Forms
|status=stable
|status=stable
|last_released=November 2012
|released=2010/12/10
|last_version=1.2.4
|last_released=2012/12/02
|programming_language=PHP
|last_version=1.8.0
|operating_systems=Most
|programming language=PHP
|platforms=Any
|website=http://www.semantic-mediawiki.org/wiki/Semantic_Result_Formats
|languages=Several
|support_website=http://www.semantic-mediawiki.org/wiki/Semantic_Result_Formats
|genre=Mediawiki
|last_edit=2013/06/26
|keywords=semantic web,
|licenses=GPL
|support_website=http://www.mediawiki.org/wiki/Extension:Semantic_Drilldown
|description=Semantic Drilldown is an extension to MediaWiki that provides a page for drilling down through a site's data, using categories and filters on semantic properties.
|last_edit=June 2013
}}
}}
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'''Semantic Drilldown''' is heavily tied in with the [[Semantic MediaWiki]] extension, and is meant to be used for drilling down structured data that has semantic markup. You must have version 1.5 or later of Semantic MediaWiki installed for the Semantic Drilldown extension to work: the code will not work without it, or with an earlier version.
'''Semantic Drilldown''' is heavily tied in with the [[Semantic MediaWiki]] extension, and is meant to be used for drilling down structured data that has semantic markup. You must have version 1.5 or later of Semantic MediaWiki installed for the Semantic Drilldown extension to work: the code will not work without it, or with an earlier version.

Revision as of 16:31, 26 June 2013

Draft

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Introduction

Category:MediaWiki extension
Semantic Drilldown
Extension name Semantic Drilldown
About this article / disclaimer
Logo Placeholder.png
Screenshot Placeholder.png
Location of the main author The following coordinate was not recognized: Geocoding failed.
Coordinates of the main authors Geocoding failed
Developers Jeroen De Dauw, Frank Dengler, Steren Giannini, James Hong Kong, Fabian Howahl, Yaron Koren, Markus Krötzsch, David Loomer, Joel Natividad, Denny Vrandecic, Nathan Yergler, others
Licences GPL
Description Semantic Result Formats (SRF) is a MediaWiki extension, used in conjunction with the Semantic MediaWiki extension, that bundles a number of further result formats for SMW's inline queries. The individual formats can be added to the installation independently.
Mediawiki requirements Any recent version
Dependencies Semantic MediaWiki
Related extensions (documented here) Semantic Forms
Related extensions
Discussion
Language support
Status stable
First release date 2010/12/10
Last release date (as of 2013/06/26!) 2012/12/02
Last version number 1.8.0
Programming language PHP
Alternatives
Website home page
Publications
Support websites web site
Example websites
Last edited 2013/06/26


Semantic Drilldown is heavily tied in with the Semantic MediaWiki extension, and is meant to be used for drilling down structured data that has semantic markup. You must have version 1.5 or later of Semantic MediaWiki installed for the Semantic Drilldown extension to work: the code will not work without it, or with an earlier version.

Basic use

According, to the Semantic Drilldown page at Mediawiki.org, you first need "semantic contents", for example Semantic Forms.

(1) Analyze your data

You could use special:browseData to do so.

(2) Create filters

Every filter you want to be able to drill down with has to be defined separately, on a page in the "Filter:" namespace. The easiest way to create a filter is to simply go to the not-yet-created filter page, and click on the "Create with form" tab; this will show the 'CreateFilter' display Or, for you can go directly to Special:CreateFilter.

(3) Add filters to categories

Once you created filters, you can add the tag [[Has filter::Filter:filter-name]] (several possible) to a "semantic" top-level category page.

(4) Include/exclude categories

The use of Semantic DrillDown in a wiki like this one (i.e. not designed from the ground up as semantic mediawiki) requires some adjustments. The DrillDown special pages works from top-level categories. In this wiki there is only one, i.e. "Contents". The others that show up are mistakes :).

We could have used the following strategy to exclude all non-semantic categories:

  • By default no category will show up. In the LocalSettings.php file we set:
$sdgHideCategoriesByDefault = true;

But since we only have a single "normal" top-level category we just inserted this in the Contents page

_HIDEFROMDRILLDOWN_
  • Each category that should show up in the drilldown includes the following string:
_SHOWINDRILLDOWN_

Notice: For some weird reasons I can't insert two underscores in a row in the above (i.e. the nowiki filter doesn't work). Therefore use "__" instead of "_" !!

(5) Set some display options

You could set the title of the drilldown page for any specific category, for example:

 This category has the drilldown title [[Has drilldown title::Browse all cities]]. 

More options are available (to document)

Listing all filters