EXTENDING THE BASIC TAGGING MODEL: CONTEXT AWARE TAGGING
Christoph Trattner, Denis Helić · 2009
Tagging systems are very popular tools for organizing and structuring information about arbitrary Web resources by assigning simple keywords (tags) to those resources in a collaborative fashion. Folksonomy is a data structure resulting from the tagging process and is characterized as a flat collection of triples of the form user-resource-tag. Research on folksonomies is only taking off and as of now a number of open research questions and problems require to be answered. One of such problems is the problem of tag ambiguity – a situation where one and the same tag might have multiple meanings depending on users, topics, or context in which the tags have been created. In this paper we present a simple solution to the ambiguity problem by extending the basic triple model of tagging systems with the fourth element: context. Thus, each tag is (automatically) put into a context. Note here that the notion of context is a general one. That is the context might be inferred from the content of a resource, external information structures existing on the top of a resource, or from properties of the user profile. Lastly, the paper presents an implementation of this principle in an online Wiki-based encyclopedia called Austria-Forum and discusses directions for the future work.