정보공학과 김 상 영

정보공학과 김 상 영

1. Introduction

2. Visual Representation of Semantic Content

3. Collaborative Authoring

4. Enabling Social Collaboration

5. Semantic Search

6. Implementation and Status

Wiki system + Semantic Web

◦ SHAWN: Structure Helps a Wiki Navigate

◦ WikSAR: Semantic Authoring and Retrieval within a Wiki

◦ SemperWiki: A Semantic Personal Wiki

◦ …

◦ OntoWiki

OntoWiki Strategies

◦ Intuitive display and editing

◦ Semantic views

◦ Versioning and Evolution

◦ Semantic search

◦ Community support

◦ Online statistics

◦ Semantic syndication

• List views: allow to view a selection of several instances in a combined view.

• Individual views: combine all the properties attached to a particular instance.

Different Views on Instance Data• Map View• Calendar View

1. Inline Editing 2. Concept Identification and Reuse

3. Editing Widgets

◦ Provided Widgets (prototypical OntoWiki) Statements: allows editing of subject, predicate, and object Nodes: edit literals or resources Resources: select and search from/for existing resources Literals: literal data in conjunction with a data type or a language identifier Widgets for specific literal data types: e.g. dates, HTML fragments File widget: allows uploading of files to the OntoWiki system

4. View Editing

◦ Types of editable views: Metadata, Instances, Views

Social collaboration within OntoWiki

◦ Change tracking: All changes applied to a knowledge base are tracked.

◦ Commenting: All statements may be annotated, commented, and their usefulness can be rated.

◦ Rating: Instances of the class can be rated according to special categories.

◦ Popularity: All accesses are logged thus allowing to arrange views on the content based on popularity.

◦ Activity/Provenance: This system keeps record of what was contributed by whom. (addition of instance data, commenting, …)

1. Facet-Based Browsing

Reference: http://3ba.se/resource/view/swrc%3AConference

2. Semantically Enhanced Full-Text Search

OntoWiki: an alternative user interface to the schema editor integrated in Powl (*Powl: platform for Semantic Web application development realized in a 3-tier architecture)

OntoWiki is..

◦ Implemented in the Scripting language PHP To be easily deployed on most Web hosting environment

◦ Available as open-source software from SourceForge

◦ Available at http://3ba.se

◦ Extended and adopted within a variety of R&D projects

Thank You!