Course Project

Logistics

• Group project with team size of 2 or 3
• Each group works on a different domain for designing and building an ontology
• Two phases of the project
• Design and build an ontology for the domain of your choice
• Use that ontology in a chatbot to answer questions*
• Expected deliverables
• Demo (team)
• Code, OWL files (team)
• Report* (Individual)

*Template will be provided

Choice of domains

• Healthcare
• Movie
• Transportation System
• Sports (Cricket, Chess, Tennis, Football etc.)
• Geography
• Astronomy
• University
• Biomedicine
• Chemical compounds

Ontology (min. requirements)

• 15 classes
• 2 and 3 levels of class hierarchy
• 3-5 object properties
• 3-5 data properties
• Property hierarchy
• 1-2 subproperty relations
• 1 property chain (encouraged but optional)
• Domain and Range for all the properties
• 8-10 Existential class expressions
• 1-3 Universal class expressions
• 10 Individuals (2-3 differentAs)
• 1 Enumerated class
• 3-5 Disjoint classes
• Use at least 2 ontology design patterns

*Cooking Recipe ontology would be updated to reflect these requirements

Questions for chatbot

• Is A SubClassOf B
• Is a instanceOf A
• Is KB consistent
• Add an axiom and check for consistency
• Generate explanation for inconsistency
• Use ObjectPropertyAssertion + Domain/Range, to infer type of the individual
• Is p SubPropertyOf q
• List characteristics of property p
• Functional property etc.
• Participates in a property chain, SubPropertyOf, ObjectPropertyAssertion, DataPropertyAssertion etc.
• Domain, Range

Questions for chatbot

• Check for corner cases
• Class or property does not exist
• Null or empty query
• Class SubClassOf itself

Notations To Be Used

• <?Class> SubClassOf <Class>
• <Class> SubClassOf <?Class>
• <?Individual> InstanceOf <?Class>
• IsConsistent?
• Add: <syntactically correct axiom>
• Explain ClassExpression
• GetTypes <Individual>
• <?Property> SubPropertyOf <?Property>
• CharacteristicsOf <Property>

<Class> indicates a specific class whereas <?Class> indicates any class. Same for properties

Chatbot library

• A simple UI with a scrollable display area + a text box
• A command line tool
• Any chatbot library of your choice

Extra Credit

• A simple UI (5%)
• Chatbot library (5%)
• Queries in natural language (10%)
• Is <Individual> a <Class>?
• What are the subclasses of <Class>?
• How are <Class1> and <Class2> related to each other?
• ...
• Spell correction can also be used if the queries are in natural language
• Support for synonyms in queries from WordNet (5%)
• A chatbot integrated UI for adding axioms (5%-10%)
• SubClassOf axioms
• ObjectPropertyAssertions
• ...