Lifecycle of a Casual Web Ontology Development Process

1
Lifecycle of a Casual Web Ontology Development
Process

• Aditya Kalyanpur, Bijan Parsia, Nada Hashmi,
  Jennifer Golbeck

2
Outline of the Talk

• Motivation
• Casual Web Ontology Development
• Analogous to Casual Web Page / Wiki Development
• Cycle
• Edit
• Find
• Link
• Implementation SwoopEd

3
Motivation

• Current Ontology Development Process
• Rely on KR based ontology engineering
  methodologies
• Steep learning curves
• Cumbersome and Time consuming
• Need for rapid and easy creation

Heavy-Weight Protégé
Light-Weight OilEd
Feather-Weight! SwoopEd
4
Casual Web Ontology Development

• What is it?
• Definition web-based approach to ontology
  building instead of a rigorous manual approach
• Similar to Web Page / Wiki Development
• Hypermedia based browsing
• Ad hoc creation and editing of concepts
• Finding and reusing related concepts

5
Casual Web Ontology Development

• Edit
• Short hand Notation for bootstrapping
• Web-form like editors
• Find
• Concept search with query broadening
• Web-like browsing (hyperlinks)
• Link
• Connect to related concepts

6
Short Hand Notation

• Used to draft ontology skeletons quickly
• Less overhead than existing alternatives to
  RDF/XML i.e. N3, Abstract Syntax, Turtle
• Provides sufficient building blocks to construct
  a basic ontology model that can be refined later

7
Short-Hand Notation

• Example

C Person P name (String) P age (Integer) C
Student P hasAdvisor (Person) R (MIN1)
hasAdvisor C GraduateStudent R HAS
hasDegree PhD C Degree L ONEOF (PhD, MS,
BE)
ltowlClass rdfID"Person"/gt ltowlDatatypeProperty
rdfID"name"gt ltrdfsdomain rdfresource"Pers
on"/gt ltrdfsrange rdfresource"xsdstring"/gt lt
/owlDatatypePropertygt .. ltowlClass
rdfID"Student"gt ltrdfssubClassOf
rdfresource"Person"/gt ltowlRestrictiongt
ltowlonProperty rdfresource"hasAdvisor"/gt
ltowlminCardinality rdfdatatype"xsdnonN
egativeInteger"gt1 lt/owlminCardinalitygt
lt/owlRestrictiongt lt/owlClassgt ..
8
Concept Search

• Example Workflow
• Generate query template from selected concept
• Searches for component terms by keyword matching
  on documentation
• Reasoner used to verify generated axioms

If keywords Student/Graduate match concepts
Student, GradStudent Check Student
rdfssubClassOf Human? Student rdfssubClassOf
HumanBeing? GradStudent rdfssubClassOf
Human? GradStudent rdfssubClassOf HumanBeing?
9
Natural Language Based Wizards

• Helpful explanation of terms in an ontology

10
Implementation SwoopEd
(Web/Wiki-like Interface for Browsing/Editing
Multiple Ontologies)
11
Future Work

• Usability studies
• Centralized repository for collaborative editing
  of ontologies
• Annotea with Swoop
• Advise rules for using concepts
• Mapping with explanations
• But what if our assumptions fail no widespread
  ontology linking/reuse

12

• Questions?