Semantic Wiki Review

8/6/2019 Semantic Wiki Review

1/22

4/20/2006 1

Semantic Wiki

Review of Current Projects

April 2006

Source:

http://wiki.ontoworld.org/index.php/Semantic_Wiki_State_Of_The_Art


2/22

4/20/2006 2

Semantic Wiki Background

Semantic Wikis are an extension ofregular Wikis, where users can addsemantic annotations to Wiki pages.These annotations can help users findinformation and navigate through the

Wiki. For example, a Wiki with pagesabout various books could annotatethese pages with little pieces ofadditional data, such as "this book waswritten by John Irving", or "This bookwas published in 1995".

Annotations are typically written inRDF, although the user does not need

to know any RDF. Having suchsemantic annotations, the system canhelp users who want to see all booksby John Irving. It does not do a full-textsearch, but looks into theseannotations to get very accurate andrelevant results.

Personal Wikis are another extension

of regular Wikis, that actually do notprovide any collaborative functionality,

but instead focus on providing a single

user optimal usability.

Personal Wikis have become quite

popular recently, on many different

platform; see for example are Tomboy,

wikidPad, and VoodooPad. These

personal Wikis are very simple

applications and focus on some simple

usability features such as instant

autosave, backlinks, linkingautocomplete, and full-text search.


3/22

4/20/2006 3

Semantic Wiki Projects

COW

IkeWiki

KaukoluWiki

KawaWiki

KendraBase

Makna

OntoWiki

OpenRecord PlatypusWiki

POWL

Rhizome

Rise SemanticWikipedia

SeMediaWiki SemPerWiki

SemWiki

SweetWiki

Wekiwi WikiOnt

WikSAR


4/22

4/20/2006 4

COW

The semantic wiki COW is an attempt to

combine a text-based wiki with ontologies to

extend the wiki idea with semantics. It is aproject of the Albert-Ludwigs-Universitt

Freiburg, developed by Jochen Fischer, Zeno

Gantner, Steffen Rendle and Manuel Stritt

under supervision of Prof. Dr. Dr. LarsSchmidt-Thieme.


5/22

4/20/2006 5

IkeWiki

IkeWiki allows users to annotate pages and linksbetween pages with semantic annotations, that givemachines a certain amount of "understanding" of the

content that goes beyond merely displaying the page. Allows context-specific presentation of pages,

advanced querying, consistency verification ordrawing conclusions.

IkeWiki can make use of some of the knowledge

represented in RDFS and OWL schemas to displayenhanced navigation tools. E.g., a sample "biologyontology" automatically displays a taxonomy box forbiological objects.


6/22

4/20/2006 6

KaukoluWiki

KaukoluWiki is a Java-JSP-based Semantic Wiki thatmanages its data by using Semantic Web tools. MostUses methods of the Semantic Web to bridge the gap

between Semantics and the WWW. Creates webpages that semi-automatically include semanticinformation. Goal is automated integration ofknowledge and reasoning over this knowledge.

Kaukoluwiki is used as private wiki on the Gnowsis

Semantic Desktop. It integrates with other DesktopRDF databases and can be used as a personalwiki/weblogging tool. Pages created in the wiki cancontribute to the RDF data of the semantic desktop.


7/22

4/20/2006 7

KawaWiki

Semantic Wiki is a variant of WikiWikiWeb to

generate Semantic Web pages containing

RDF/OWL data. We propose a new SemanticWiki system called KawaWiki and show a

prototype. It utilizes three types of templates

to input values of RDF data elements, to

generate RDF data, and to format Wikipages.

Kensaku KAWAMOTO, Yasuhiko KITAMURA


8/22

4/20/2006 8

KendraBase

The KendraBase is a semantic wiki / database withauto form generation for data input and queries. Asimple content management system. Queries are

distributed and agent-like. KendraBase enables people to describe the world

how they wish to, using their own language andterminology, and to have these descriptionsunderstood by others that may not be able to directly

understand the original author's language andterminology. Interchange of ideas uses standardsthat are personal and dynamic. This way "meaning"is defined by usage (bottom up) rather than thedictate (top down) approach usually associated with

standards.


9/22

4/20/2006 9

Makna

Makna stands for "knowledge" in bahasa indonesia

("indonesian"). Combines the simplicity of the Wiki-

Way with the power of the semantic web while

keeping advantages from both technologies. Providean easy and user-friendly user interface and powerful

technologies in the background. The engine supports

RDFS and OWL ontologies and the reasoner can be

chosen as well. Assistants for searching predicatesand pages (on the Edit-Page), as well as for

formulating statements and queries "with the mouse

only."


10/22

4/20/2006 10

OntoWiki

Wiki technology used as an ontology developmentenvironment, reducing entry barriers for usersparticipating in the creation and maintenance of

ntologies, and describe our first OntoWiki prototype. Wikis as an ontology engineering workbench, in the

sense that anybody can add a new element to theontology, and refine or modify existing ones. Use ofmultimedia elements to improve the richness and

disambiguity of informal concept definitions in anontology. Definition of a concept is not separatedfrom the discussion that lead to shaping the intensionof this concept.


11/22

4/20/2006 11

OpenRecord

Wiki engine geared toward loosely-structured

database content. Web-based collaborative database

tool. OpenRecord could grow to incorporate simple

spreadsheet features, as well as interactive chartingand graphing features, and OLAP and pivot table

features.The OpenRecord design is inspired by wiki

software and sites like Wikipedia, as well as CMSs

like Zope/Plone and eZ publish. The OpenRecorddesign also draws on ideas from outliners like Lotus

Agenda and OmniOutliner, spreadsheets like Lotus

Improv, and newer work like Chandler and RDF.


12/22

4/20/2006 12

PlatypusWiki

Simple user interface to create wiki pages withmetadata based on W3C standards.It uses RDF(Resource Description Framework), RDF Schema

and OWL (Web Ontology Language) to createontologies and manage metadata.

Platypus Wiki can be used as a Personal KnowledgeManagement system, or to manage a Community ofPractice. We hope to make Platypus Wiki into an

amazingly useful tool for a Semantic Wiki Wiki Webcommunity. We'll set up a running installation assoon as possible to discuss the Semantic Wiki WikiWeb and these ideas.


13/22

4/20/2006 13

pOWL

Web based platform for collaborative

Semantic Web development. A framework for

parsing, storing, querying, manipulating,serving and serializing OWL knowledge

bases in a collaborative web enabled

environment for the most distributed web

application platform (LAMP Linux / Apache /MySQL / PHP) used as a foundation

framework for semantic web applications


14/22

4/20/2006 14

Rhizome

Rhizome is a Wiki-like content management

and delivery system that exposes the entiresite -- content, structure, and metadata as

editable RDF. This means that instead of

just creating a site with URLs that

correspond to a page of HTML, with

Rhizome you can create URLs thatrepresent just about anything, such as:

structural components of content (such

as a bullet point or a definition).

abstract entities that can be presented

in different ways depending on the

context.

relationships between entities or

content, such as annotations or

categories.

Rhizome is designed to enable non-

technical users to create these

representations in an easy, ad-hoc manner.

To this end, it includes a text formatting

language which similar to a Wiki's but lets

you author arbitrary XML content and RDF

metadata.

And for developers, this allows both contentand structure to be easily repurposed andcomplex web applications rapidly developed.

The long-term vision is that each Rhizomesite will intertwine together, forming anemergent fuzzy taxonomy over a peer-to-

peer network. The nearer-term goals of Rhizome are:

To allow (relatively) non-technical folkto create "Semantic web"-enabled websites.

To provide a platform for the rapid-development of web applications

To provide a test-bed forexperimenting with new forms of

collaborative knowledge productionand communication

A showcase and test-bed for itsunderlying technologies: Rx4RDF,ZML, and


15/22

4/20/2006 15

RISE

Wiki is the physical representation of the ontology with pages asconcepts and links as relations. The ontology used by the community isedited via the Wiki itself.

A set of naming conventions is used to determine automatically the

actual ontology from the Wiki content. For example, documenttemplates may start with DocType. This naming convention allows auser to add new document templates just by creating a new documentstarting with DocType (an alternative to this convention would be to usenamespaces). Since those templates contain a reference tothemselves, an instance of this template is automatically linked to thetemplate.

In addition, domain-ontology independent information like the documenttype or the date of creation is derived from the Wiki and included intothe ontology. These conventions and automatic determination of meta-data can be seen as an easily remindable, implicit meta-ontology.


16/22

4/20/2006 16

Semantic Wikipedia

Extension to be integrated in Wikipedia, that allows the typing oflinks between articles and the specification of typed data insidethe articles in an easy-to-use manner.

Enabling even casual users to participate in the creation of an

open semantic knowledge base, Wikipedia has the chance tobecome a resource of semantic statements, hitherto unknownregarding size, scope, openness, and internationalisation.These semantic enhancements bring to Wikipedia benefits oftoday's semantic technologies: more specific ways of searchingand browsing.

Also, the RDF export, that gives direct access to the formalisedknowledge, opens Wikipedia up to a wide range of externalapplications, that will be able to use it as a backgroundknowledge base. In this paper, we present the design,implementation, and possible uses of this extension.


17/22

4/20/2006 17

Semantic MediaWiki

Extensions of the MediaWiki software that allow for

simple, machine-based processing of Wiki content.

Objective is a single solution for semantic annotation

that fits the needs of most Wikimedia projects and

still meets the Wiki-specific requirements of usability

and performance.

While ad hoc implementations (i.e. "hacks") may

solve single problems, agreeing on common editingsyntax, underlying technology, exchange formats,

etc. bears huge advantages for all participants.


18/22

4/20/2006 18

SemPerWiki

Open-source semantic personal Wiki for Gnome.Usability of personal Wikis with the improved retrievaland querying of semantic Wikis.

Personal Wikis are simple applications that allow youto collect your information in a set of related notes.The system helps you to write your thoughts downinstantly, as it is always available and easy to use.

Semantic Wikis consist of pages that can be

annotated with semantic information. The system canthen help you find and retrieve relevant informationbetter (because it understands a bit better what eachpage is about).


19/22

4/20/2006 19

SemWiki

Personal knowledge management (finding,

reminding, collaboration, knowledge re-use and

cognitively adequate interfaces) based on a restful,

wiki-based, open architecture for semantic personalknowledge management.

Fulfills the analyzed requirements to a high extent

and gives the user a uniform way to work with

knowledge on all layers (syntax, structure, formalsemantics). We discuss architectural considerations

and describe two implementations.


20/22

4/20/2006 20

SweetWiki

Semantic wiki based on the CORESE engine. The

project started in september 2005, so we do not have

much to show yet. We support only wysiwyg edition

of pages and annotations, and use CORESE enginefor all operations : navigation, search, etc... the wiki

itself is really written around CORESE and RDF stuff,

it is not a "regular wiki" with some support for

annotations. More on sweetwiki later as the project is

really in active development.


21/22

4/20/2006 21

WikiOnt

WikiOnt aims at integrating Wikipedia (and by

extension other MediaWiki-based sites) into

the Semantic Web framework and makingWikipedia machine-processable and -

understandable.


22/22

4/20/2006 22

WikiSar

Common wiki applications lack possibilities tostructure the relationships between wiki pages. Thissemantic wiki prototype named SHAWN allows

modeling concepts and their relationships within awiki environment.

Goal is to keep concept creation very simple. Yet,entering relationship data instantaneously gratifiesthe user with enhanced navigational means on the

wiki. Engine supports simple semantic queries upon the

emergent model. A challenge is to accommodate aself-explaining query interface for these ontologies.

Semantic Wiki Review

Documents

Transcript of Semantic Wiki Review