Zusammenfassung
While recent progress has been achieved in understanding the structure
and dynamics of social tagging systems, we know little about the
underlying user motivations for tagging, and how they influence resulting
folksonomies and tags. This paper addresses three issues related
to this question: 1.) What motivates users to tag resources, and
in what ways is user motivation amenable to quantitative analysis?
2.) Does users' motivation for tagging vary within and across social
tagging systems, and if so how? and 3.) How does variability in user
motivation influence resulting tags and folksonomies? In this paper,
we present measures to detect whether a tagger is primarily motivated
by categorizing or describing resources, and apply the measures to
datasets from 8 different tagging systems. Our results show that
a) users' motivation for tagging varies not only across, but also
within tagging systems, and that b) tag agreement among users who
are motivated by categorizing resources is significantly lower than
among users who are motivated by describing resources. Our findings
are relevant for (i) the development of tag recommenders, (ii) the
analysis of tag semantics and (iii) the design of search algorithms
for social tagging systems.
Nutzer