Ontology Engineering for the Semantic Web and beyond

Ontology Engineering for the Semantic Web and Beyond Natalya F. Noy Stanford University [email_address] A large part of this tutorial is based on “ Ontology Development 101: A Guide to Creating Your First Ontology” by Natalya F. Noy and Deborah L. McGuinness http://protege.stanford.edu/publications/ontology_development/ontology101.html

A shared ONTOLOGY of wine and food French wines and wine regions California wines and wine regions Which wine should I serve with seafood today?

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What Is An Ontology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ontology Examples ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What Is “Ontology Engineering”? ,[object Object],[object Object],[object Object],[object Object],[object Object]

Why Develop an Ontology? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More Reasons ,[object Object],[object Object],[object Object],[object Object],[object Object]

An Ontology Is Often Just the Beginning Ontologies Software agents Problem-solving methods Domain-independent applications Databases Declare structure Knowledge bases Provide domain description

Ontology-Development Process ,[object Object],In reality - an iterative process: determine scope consider reuse enumerate terms define classes define properties define constraints create instances determine scope consider reuse enumerate terms define classes consider reuse enumerate terms define classes define properties create instances define classes define properties define constraints create instances define classes consider reuse define properties define constraints create instances

Ontology Engineering versus Object-Oriented Modeling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Preliminaries - Tools ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Determine Domain and Scope ,[object Object],[object Object],[object Object],[object Object],determine scope consider reuse enumerate terms define classes define properties define constraints create instances

Competency Questions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Consider Reuse ,[object Object],[object Object],[object Object],[object Object],determine scope consider reuse enumerate terms define classes define properties define constraints create instances

What to Reuse? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What to Reuse? (II) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Enumerate Important Terms ,[object Object],[object Object],[object Object],consider reuse determine scope enumerate terms define classes define properties define constraints create instances

Enumerating Terms - The Wine Ontology ,[object Object],[object Object],[object Object],[object Object]

Define Classes and the Class Hierarchy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],consider reuse determine scope define classes define properties define constraints create instances enumerate terms

Class Inheritance ,[object Object],[object Object],[object Object],[object Object]

Class Inheritance - Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Levels in the Hierarchy Middle level Top level Bottom level

Modes of Development ,[object Object],[object Object],[object Object]

Documentation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Define Properties of Classes – Slots ,[object Object],[object Object],consider reuse determine scope define constraints create instances enumerate terms define classes define properties

Properties (Slots) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Slots for the Class Wine (in Protégé-2000)

Slot and Class Inheritance ,[object Object],[object Object],[object Object],[object Object]

Property Constraints ,[object Object],[object Object],[object Object],[object Object],consider reuse determine scope create instances enumerate terms define classes define constraints define properties

Facets for Slots at the Wine Class

Common Facets ,[object Object],[object Object],[object Object],[object Object]

Common Facets: Slot Cardinality ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Common Facets: Value Type ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Domain and Range of Slot ,[object Object],[object Object],[object Object]

Facets and Class Inheritance ,[object Object],[object Object],[object Object],[object Object],Wine French wine Winery French winery is-a is-a producer producer

Create Instances ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],consider reuse determine scope create instances enumerate terms define classes define properties define constraints

Going Deeper ,[object Object],[object Object],determine scope consider reuse enumerate terms define classes define properties define constraints create instances determine scope consider reuse enumerate terms define classes define properties define constraints create instances

Defining Classes and a Class Hierarchy ,[object Object],[object Object],[object Object],[object Object],[object Object]

Multiple Inheritance ,[object Object],[object Object],[object Object]

Disjoint Classes ,[object Object],[object Object],[object Object],[object Object],Wine Red wine Rosé wine White wine Dessert wine Port

Avoiding Class Cycles ,[object Object],[object Object],[object Object]

Siblings in a Class Hierarchy ,[object Object],[object Object]

The Perfect Family Size ,[object Object],[object Object],[object Object]

The Perfect Family Size (II) ,[object Object],[object Object]

Single and Plural Class Names ,[object Object],[object Object],[object Object],[object Object],[object Object],Class Instance instance-of

Classes and Their Names ,[object Object],[object Object],[object Object],[object Object]

A Completed Hierarchy of Wines

Back to the Slots: Domain and Range ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Back to the Slots: Domain and Range ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],slot class allowed values DOMAIN RANGE

Defining Domain and Range ,[object Object],[object Object],[object Object]

Inverse Slots ,[object Object],[object Object],[object Object]

Inverse Slots (II) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Default Values ,[object Object],[object Object],[object Object],[object Object]

Limiting the Scope ,[object Object],[object Object],[object Object],[object Object],[object Object]

Limiting the Scope (II) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ontologies and the SW Languages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

SW Languages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

RDF and RDF Schema Classes ,[object Object]

RDF(S) Terminology and Semantics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Property Constraints in RDF(S) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DAML+OIL: Classes And a Class Hierarchy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More Ways To Define a Class in DAML+OIL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Property Constraints in DAML+OIL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Research Issues in Ontology Engineering ,[object Object],[object Object],[object Object],[object Object],[object Object]

Content: Top-Level Ontologies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Content: Knowledge Acquisition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Evaluation ,[object Object],[object Object],[object Object],[object Object]

Ontology Maintenance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ontology Languages ,[object Object],[object Object],[object Object]

Ontology-Development Tools ,[object Object],[object Object],[object Object],[object Object],[object Object]

Where to Go From Here? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Transitivity of the Class Hierarchy ,[object Object],[object Object],[object Object],[object Object],[object Object]

Ontology Engineering for the Semantic Web and beyond

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Andere mochten auch

Andere mochten auch (20)

Ähnlich wie Ontology Engineering for the Semantic Web and beyond

Ähnlich wie Ontology Engineering for the Semantic Web and beyond (20)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)

Ontology Engineering for the Semantic Web and beyond