Semantic MediaWiki - Knowledge Management and Open Data Use Cases

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Semantic MediaWiki –

Knowledge Management and

Open Data Use Cases

April 20th

, 2015

WU, Institute for Information Business

Bernhard Krabina

www.kdz.or.at

Introduction

KDZ – Centre for Public

Administration Research

Open Knowledge –

Austrian Chapter

Semantic MediaWiki

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Agenda

What is Semantic MediaWiki and what

makes it great for Knowledge Management?

Some Open Data Use Cases

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Wikipedia – Wikimedia – Mediawiki

Encyclopedia – Operator – Software

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Document Management vs. Wiki

Documents = DMS

Word

Excel

PowerPoint

PDF

Approval

Electronic Signature,

User rights

(File system), Sharepoint,

Fabasoft, Alfresco…

Content = Wiki

Content of documents

Text with categories

Database functions with

forms

Document upload as an

exception

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Content Management vs. Wiki

Control = CMS

Access control on

different content types

(Filesystem), Sharepoint,

Drupal, Typo3, Joomla…

Transparency = Wiki

Everyone can view/edit

everything

Restrictions on actions

(who can view/edit), not

on content types (what)

Changes visible

Easy rollback

Advantage: enables cultural

change!

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Strengths and Weaknesses of

Wikis

Wikis are great for text…

easy to use, easy to edit

full text search

collaborative editing

categories to organise pages

Wikis have weaknesses for knowledge management!

no data, only text: 995 32

no relations, just links: Tbilisi —> Krakow

no querying of data

lack of structure leads to manual effort

manual edited lists (List of danube bridges, list of Autrian museums by city)

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The original idea of SMW: make data and

relations inside a wiki readable

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Source: Völkel, Krötzsch, Vrandecic,

Haller, Studer, „Semantic Wikipedia“,

Demos and Posters of the 3rd

European Semantic Web Conference

(ESWC 2006), Budva, Montenegro,

11th-14th June, 2006

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Wikis and Data in 2015

extract structured information from

Wikipedia and make this information

available on the Web

free knowledge base that can be

read and edited by humans and

machines alike… central storage for

the data that may be accessed by

the client Wikis

lets you store and query data within

the wiki's pages. Turns a wiki into a

powerful and flexible knowledge

management system.

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www.semantic-mediawiki.org

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Semantic MediaWiki

leaves your MediaWiki installation intact

no patching, just a (bunch of) MW extension(s)

already existing unstructured content can stay as it is or be

transformed

gives you all the tools you need for a

collaborative web database

entering data and text

representing/visualising data and text within the wiki

re-use/export data outside the wiki

everything is done through configuration

Attributes, Forms, Templates, Filters… are wiki pages

Queries, parsing, “programming” via Wikitext

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Semantic MediaWiki

Unstructured Text

Strengths of Wikis

Structure via

Categories and

Namespaces

Full Text Search

Collaborative editing

…

Structured Data

Web database

Online forms

Result lists

Facetted search

Automatically generated

pages

…

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Vienna History Wiki

www.wien.gv.at/wiki

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Form based data entry

(Semantic Forms)

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„Bennant nach“ =

„named after“

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{{#ask:…}} query for pages named

after „Sigmund Freud“

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List all pages of Category:Person

with Birthyear::1856 and

Sex::male

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RDF/JSON export

= Open Data!

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> 40 different „result formats“

|format=table |format=csv |format=calendar...

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External Data Extension

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Names of Cemetries

in Vienna published

in the OGD catalogue

data.gv.at – reused in

a wiki

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Application landscape in organizations:

Wikis as niche product

Documents

text documents

presentations,

spreadsheets, PDFs

storage in file system

Search:

Enterprise Search

DMS (Records man.)

metadata:

Databases

desktop databases

specialized applications

web based databases

...

metadata

text fields

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Wikis

unstructured text

collaborative edition

versioning & rollback

content management

access control

complex layouts

Websites

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Semantic MediaWiki as

Knowledge Management System

Semantic MediaWiki

Semantic Web

Input and output of data (not only

text)

Form based entry, result formats

Semantic Web standards

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Agenda

What is Semantic MediaWiki and what

makes it great for Knowledge Management?

Some Open Data Use Cases

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Open Government

Implementation Model

http://www.kdz.eu/de/open-government-vorgehensmodell

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Implementing OGD Initiatives

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Internal Data Monitoring

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Criterion Description Score

Non-disclosure/ legal restrictions

Is the data subject to non-disclosure obligations or other

legal restrictions or does it include data critical for

infrastructure? 5

Personal or corporate referencesDoes the data include personal references or can

individuals or companies be identified? 4

CopyrightIs the administrative agency sole proprietor of data

copyright? 5

ValueHow high is the estimated value of disclosure for all target

groups? 2

EffortHow high is the effort of disclosure?

3

Content-related data qualityHow high is the estimated data quality? (timeliness,

completeness, accurateness, faultiness) 4

Technical availabilityAvailable data formats and data sources, open

standards: OGD formats, extended Five-Star System 2

SynergyAre agencies already making the data/services available

for other purposes? 5

Sum 30

Sum in percent 75%

Maximum score 40

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Open Data Use Cases

SMW as Open Data Portal

Yes. CKAN is the de-facto-standard, but SMW can do it

SMW as OGD Cockpit: www.ogdcockpit.eu

Collaboratively build an internal data catalogue:

select datasets to be published

Support the process BEFORE the actual publishing

In case of Bonn: make this wiki open to the public, to see

which datasets will NOT be published and why

SMW as producer of Open Data

as OpenGLAM tool, for crowdsourcing…

SMW as consumer of Open Data

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Semantic MediaWiki

Use cases

Intranet portals

Project management and –documentation

Internal Knowledge Management

Knowledge Portals (external)

Web databases

Case/Skills Management

OpenGLAM/crowdsourcing

SemanticWeb projects

….

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Contact

4. Oktober 2012 · Seite 33

Bernhard Krabina

[email protected]

www.kdz.or.at

@krabina