Flashcards

Semantic Web

Man Liu Inglês 4,0Avaliação média 4,0 de 5 (1 avaliação) 7 flashcards

Flashcards do conjunto (7)

1What is the Semantic Web?- Vision of new Web
- Based on technologies like:
XML
RDF
OWL
Ontologies
- Uses inference Services
2Why are metadata becoming more important and how are they used in the Web?- Metadata "data over data"
- Used to represent meaning of some content (e.g. a Picture or a Video)
3Why are metadata becoming more important and how are they used in the Web?- Content on the Web becomes more & more multimedia -> more difficult to process
4Why are metadata becoming more important and how are they used in the Web?- Semantic technologies like RDF or OWL -> used to encode metdata
- Metadata -> can be included in the web by "Microformats", "Microdata", or as "RDFa"
5What is "Linked Open Data"?- Is about using the Web to connect related Data that wasn't previously linked
- DBpedia -> plays a central role to link different vocabularies
- Data is available as RDF triples
6Explain the words taxonomy!- Hierarchy of classes/concepts
- Kind of ontology (weak ontology)
7Explain the words ontology!- Formal representation of knowledge as a set of concepts within a domain, and the
relationships between pairs of concepts
- Can be used to model a domain and support reasoning about entities.