Africa

Europe

airfare

airline

amazing

book

booking

budget

cheap

deal

elder

flier

flight

guidebook

health

hostel

hotel

house

housing

immunization

imported

information

leisure

map

packing

recipe

reference

reference book

review

search

shopping

solo

ticket

tip

travel

vacation

web site

site

backpacking

europe

flyer

frequent

guide

holiday

accommodation

and

inn

library

lodging

list

reservation

study

summer

rental

home

website

youth

An ontology that describes links between tags and concepts, as used in the popular del.icio.us and Flickr systems.
Tags to Concepts ontology
An ontology for semantic tagging.

A composed tag with more than one concept in it. E.g. 'java_island'
Composed Tag

A token representation of a tag. Corresponds to the cleaned up tag. E.g. 'blogs'->'blog'. A tag in itself is often hard to link to a meaning, however, its cleaned version can be easily linked to a synset in wordnet, etc.
token

a list of tokens that make up a composed tag, or a single token that is the cleaned up version of a tag.
list of tokens of a tag

A tags:Tag is made of one or more :Token that have a commontag:means link to a skos:Concept, this is the symetric link from the skos:Concept to the particular :Token.
Meaning of a Token

a Token is part of Tag and therefore makes up a complex skos:Concept (as 'java'+'island' is not exactly the same concept as 'java island'), it is thus important to know to which tag this particular token belongs if it has a commontag:means of its own.
to which Tag does this Token belong?

a Token is part of Tag and therefore makes up a complex skos:Concept (as 'java'+'island' is not exactly the same concept as 'java island'), it is thus important to know the position of the token in the composed tag. The position is relative to the other tags so it doesn't have to start from 0, even if it would be better to keep it like this. If the token is the only component of the Tag, then the position is not mandatory.
position of the token

the set of tags that is used by a particular agent. For example, all the concept that are used to tag someones bookmarks on delicious
vocabulary

While the linked data is available as RDF/XML format, you can add a .n3 extension to the URIs to get the n3 version.

Available as linked data in RDF/XML format

RDF data describing semantic tagging of a sample of del.icio.us

Friend of a Friend (FOAF) description, containing personal metadata for Paolo Bouquet