Complex networks have emerged as a simple yet powerful framework to represent and
analyze a wide range of complex systems. The problem of ranking the nodes and the edges …

Networked systems are becoming increasingly complex in development and operation. Due
to this complexity, it is mostly impossible to follow a simple sequential designdeploy-use …

It is widely recognized that citation counts for papers from different fields cannot be directly
compared because different scientific fields adopt different citation practices. Citation counts …

When users search online for content, they are constantly exposed to rankings. For example,
web search results are presented as a ranking of relevant websites, and online bookstores …

Better understanding and controlling complex systems has become a grand challenge not
only for computer science, but also for the natural and social sciences. Many of these …

A major means to encode and share scientific knowledge are publications, which cite each
other and which are authored by one or more scientists. Citation networks of publications …

Decide Madrid is the civic technology of Madrid City Council which allows users to create
and support online petitions. Despite the initial success, the platform is encountering …

This thesis aims to improve our understanding of the role of knowledge in economics and
science. We analyze collaboration activities in these two domains, and show how the …

Informations-und Kommunikationstechnologie (IKT) ist inzwischen so allgegenwärtig, dass
sie als zentraler Bestandteil unseres täglichen Lebens gilt. Diese Integration in unseren …

Die entstehenden technischen Systeme bieten zunehmend mehr Funktionalität an, werden
gleichzeitig aber auch immer komplexer–objektive Zeugnisse dieser Beobachtung sind …