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Aug 2010 Semantic Mediawiki intro: Difference between revisions

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Aug 2010 Semantic Mediawiki intro (view source)

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wikis
See the follow-up [[Nov 2010 Practical Semantic Mediawiki]].


wikipedia
= Web =


mediawiki
* International
* Focused on presentation
* Anyone can create a site
** Network effect
* Hyperlinks


editors
= Wikis =


computer intelligence
* Portland Pattern Repository - 1995


progressive learning
Allows easy, quick editing of any page, usually by anyone.


brackets, links, categories, templates, properties
* Types of wikis
** Personal wiki
** Group
** Organization
** Topical
** ...


semantic
== Wikipedia ==


licenses
<div style="float: right; width: 48%">
http://upload.wikimedia.org/wikipedia/commons/6/63/Wikipedia-logo.png
</div>


trends
* 2001
* Anything "notable" accepted, neutral point of view
* Careful controls on legal issues so content can be re-used
* Anyone who uses the Internet knows, uses, respects, understands it
* Cultural translations
* Few understand how it's edited
* Designed to be open, but adding controls
* More upcoming focus on media
<br class="cleared" />


hands on
= Mediawiki =


sites
* Free Software (GPL)
* Hundreds of thousands of sites
* Hundreds of extensions
* Page, not content manager
* Designed for open editing, can be closed


thoughts
= Wiki use and editing =
 
On any wiki with critical mass:
 
* Readers
* Drive by editor
* Topic editor
* [http://en.wikipedia.org/wiki/Wikipedia:List_of_Wikipedians_by_number_of_edits#List Nerd core]
 
* Typical process
** Messes
** Gardening
 
== How to use a wiki ==
 
* Categories
** Many categories, ways of looking at things
** Anyone can manage them
* Recent changes
** [http://en.wikipedia.org/wiki/Special:RecentChanges wp]  vs [http://www.asiancanadianwiki.org/mediawiki/index.php?title=Special:RecentChanges&from=20100716103952&days=300 small site]
* Page history
* [http://en.wikipedia.org/wiki/Talk:Montreal Page discussion] - tags and backstory
* User pages
** http://en.wikipedia.org/wiki/User:Rjwilmsi
 
* Importance of transparency, inclusion
** [http://wiki.zooid.org/wiki/Special:Version Free software]
** [http://wiki.zooid.org/wiki/Special:Export Portable]
 
* Editing - start with an outline
 
= Editing wikis =
 
* Wikis typically use their own markup (syntax)
* Rich/wysiwyg editors create messes
** Typical word processors adding junk, can't re-use for headings, can't compare versions
** No re-usable meaning added
 
== Progressive learning ==
 
<div style="float: right; width: 48%">
http://upload.wikimedia.org/wikipedia/commons/6/64/MediaWiki_logo_without_tagline.png
</div>
 
* text - just enter it, with a blank line between paragraphs
* <nowiki>= Heading 1 =</nowiki>
* <nowiki>* Bullet point</nowiki>
* <nowiki>[[Wiki link]]</nowiki>
* View source to learn from others
* Edit sections to compartmentalize changes
 
Brackets must be matched!!!!
 
<br class="cleared" />
 
== Elements of markup ==
 
* Headings, bullets, tables, dividers
** HTML code - http://www.asiancanadianwiki.org/wiki/Main_Page
* Links - onsite and off
* Templates
** Consistent appearance and content <nowiki>{{City|Population=30,000}}</nowiki>
** [http://en.wikipedia.org/wiki/Montreal Montreal] , [http://en.wikipedia.org/wiki/Ottawa Ottawa]
 
= Semantic =
 
* Computers are not very good at understanding human language
* Adding re-usable meaning through relationships.
 
 
* Triples - expressing relationships
** Subject, predicate, object
 
 
* David lives in Montreal.
** David: subject
** Lives in: predicate
** Montreal: object
 
 
* Subject, predicate, object have their own relationships.
 
* Montreal is a city.
* A city is a place.
* Montreal is the English word for Montréal.
 
*  What are the names for the place where the St Lawrence and Ottawa rivers meet ?
 
== Web of data ==
 
<div style="float: right; width: 48%">
http://semantic-mediawiki.org/w/images/smw.gif
[[File:200px-Parmenides.jpg]]
</div>
 
* The text is the database.
 
* Making statements across web sites.
* Creating views based on multiple web sites.
* Across wikipedia: Places with populations between 100 and 10,000 with a
* Technical ontologies
** Classes (categories) - '''person''', place, date
** Properties - birth date, birth place, current location, height
** Inference
*** If a person (class) was born in Canada, they speak English or French
**** Guessiness
* Usefully and easily combine different data sources - data network effects
** Recipe from one site, ingredients from another
** Web searches that only include precise content
** Aggregate reviews from different sites
<br class="cleared" />
 
[[File:Matrix of web facets.png|web 1 - x connecting social, knowledge, intelligence, information|800px]]
 
[[File:HypermediaDiscourse.png|750px]]<br class="cleared" />
[http://www.slideshare.net/sbs/on-social-learning-sensemaking-capacity-and-collective-intelligence On Social Learning, Sensemaking Capacity, and Collective Intelligence]
 
= Semantic Mediawiki =
 
* Practical way of adding semantic data to wikis (mediawiki)
* Anyone can add semantic content
* Inline properties (annotations) <nowiki>[[about::Semantic web]]</nowiki>
* Ontologies - classes (categories and templates)
* Queries
** <nowiki>{{ #ask: [[about::Semantic web]] }}</nowiki>
** <nowiki>{{ #ask: [[Category:Person]] | [[Location::Montreal]] }}</nowiki>
* Forms
** Make SMW much easier to use when entering field data
** Inputs for different text types, date, file upload, geo location
* Views
** Map
** [http://subvention.zooid.org/wiki/Quebec_social_orgs_mapped Facet view]
** [http://innovationcell.com/wiki/Work Timeline]
** [http://innovationcell.com/wiki/User:Carlos_Rizo#tab=Graph Graph]
 
== Hands on ==
 
* Go to http://subvention.zooid.org
* Create an account
* Create page using search
* Add property <nowiki>[[knows::Douglas Jack]]</nowiki>
* Add property <nowiki>[[birth date::June 1, 1970]]</nowiki>
* Add link <nowiki>[[People]]</nowiki>
* Add <nowiki>[[Category:Person]]</nowiki>
* View resulting [http://subvention.zooid.org/wiki/People collective People page].
 
* Add a new class (category with properties, form)
 
== Sites ==
 
* [http://discoursedb.org/wiki/Park51_controversy Discourse DB]
* [http://www.placeography.org/index.php/Main_Page Placeography]
 
= Licensing =
 
* Creative commons designed to make content clearly reusable
** CC-BY
** No derivatives, no commercial
 
[[Category:SemWeb]]
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