week 5 Flashcards
(10 cards)
1
Q
ontology
A
an explicit specification of a shared conceptualization that holds in a particular context
2
Q
benefits of ontologies
A
- communication between peole
- interoperability between software agents
- reuse of domain knowledge
- make domain knowledge explicit
- analyze domain knowledge
3
Q
types of ontologies
A
- OWL: expressive, high ontological commitment
- RDFS: limitations in signing instances to classes
- Thesaurus: describing things in a dictionary
- Taxonomy: classification of things in a domain
4
Q
ingredients of ontology engineering
A
- classes and their hierarchy
- properties and their hierarchy
- class restrictions
- property types
- instances
5
Q
bottom up approach
A
start with existing material (data, use cases)
6
Q
middle-out approach
A
start with fundamental concepts, work towards more abstract and more specific terms
7
Q
top down approach
A
starts with general info and works down to more specific detail
8
Q
methodology middle out approach
A
- determine purpose and scope
- capture
- coding
- integrate existing ontologies
- evaluation
- documentation
9
Q
ontology allignment
A
the process of semantic mapping between classes and properties of two or more ontologies
10
Q
ontology merging
A
the integration of two or more ontologies into a new coherent ontology
