C.6.4.+-+Ontology+vs.+Folksonomy

=__**C.6.4 - Distinguish between an ontology and folksonomy.**__= __**Ontology**__
 * Ontology
 * A data model that represents knowledge as a set of concepts within a domain and the relationships between these concepts
 * simplify data management
 * naming/definition of types, properties and interrelationships of entities in certain discourse
 * sorts variables used for computing and establishing relationship
 * 2 standards
 * RDF — Resource Description Framework
 * OWL — Ontology Web Language
 * Triple
 * consists of Subject (Class), Predicate (Relation) & Object (Class)
 * [|WordnetWeb Definition]: "a rigorous and exhaustive organization of some knowledge domain that is usually hierarchical and contains all the relevant entities and their relations"
 * 3 Types
 * Domain ontology
 * representation of world concepts
 * e.g. card —> used for domains: playing card or computer hardware
 * different ontologies in same domain due to interpretation, failure in translation, etc.
 * Upper ontology
 * model of common objects
 * has core glossary
 * Hybrid ontology
 * combination of upper and domain ontology
 * SUMO - Suggested Upper Merged Ontology
 * largest formal public ontology

__**Folksonomy**__
 * Its the practice and method of collaboratively creating “tags”
 * comes from “Folk” + “Taxonomy”
 * “Taxonomy” is a structured classification system
 * with rules and regulation
 * “Folksonomy” is different because it has no regulations
 * single or collaboratively created classifications identifying content by labels called “tags” to annotate and categorize content
 * chosen by the user
 * used to find content later on
 * available for the public
 * can be added by others
 * Basicly the “Folk” can add “Tags” (Labels) to web content (images, videos, texts, …)
 * Why is it used:
 * web used to find information
 * vast amount of information in the web
 * with different purposes and categories
 * Folksonomy adds metadata to the content (it adds meaning)

> > >> > > > > > > || * complex in size > > > > > > || * error in translation > > ||
 * ONTOLOGY || FOLKSONOMY || Similarities ||
 * * complex in size
 * hard to create
 * specialist needed
 * specific terminology
 * need engineering/CompSci background
 * needed for semantic web
 * must not be computer based (pre-electricity)
 * not mainly machine based
 * explicit meaning
 * easy to create by everyone
 * no rules or terminology for users
 * everyone can add those tags
 * various meanings for tags = personal relation
 * based on library system (mainly networked based though)
 * form of knowledge representation / data organisation

Created By: Lucie Magister Last update: 25/02/2015

Sources:
 * Class Notes.