Of categorizers and describers: an evaluation of quantitative measures for tagging motivation

While recent research has advanced our understanding about the structure and dynamics of social tagging systems, we know little about (i) the underlying motivations for tagging (why users tag), and (ii) how they influence the properties of resulting tags and folksonomies. In this paper, we focus on problem (i) based on a distinction between two types of user motivations that we have identified in earlier work: Categorizers vs. Describers. To that end, we systematically define and evaluate a number of measures designed to discriminate between describers, i.e. users who use tags for describing resources as opposed to categorizers, i.e. users who use tags for categorizing resources. Subsequently, we present empirical findings from qualitative and quantitative evaluations of the measures on real world tagging behavior. In addition, we conducted a recommender evaluation in which we study the effectiveness of each of the presented measures and found the measure based on the tag content...

• Type: Conference
• Year: 2010
• Where: HT
• Authors: Christian Körner, Roman Kern, Hans-Peter Grahsl, Markus Strohmaier
• Keywords: HT 2010, Social Tagging Systems, Tags, World Tagging Behavior