Without the 'spillover effects' of open content production, the growth in Wikipedia editing activity between 2002 and 2010 would have been halved. That is the central finding of research by Aleksi Aaltonen and Stephan Seiler, which analyses editing data by Wikipedia users to show how content...

Digital goods are bitstrings, sequences of 0s and 1s, which have economic value. They are distinguished from other goods by five characteristics: digital goods are nonrival, infinitely expansible, discrete, aspatial, and recombinant. The New Economy is one where the economics of digital goods...

Using detailed edit-level data over eight years across a large number of articles on Wikipedia, we find evidence for a positive spillover effect in editing activity. Cumulative past contributions, embodied by the current article length, lead to significantly more editing activity, while...

For the reliable communication network design (RCND) problem links areunreliable and for each link several options are available with dierent reliabilitiesand costs. The goal is to nd a cost-minimal communicationnetwork design that satises a pre-dened overall reliability constraint.This paper...

OptiNet ist ein objektorientiertes Optimierungswerkzeug für die Lösung von baumförmigen Netzwerkproblemen mit Hilfe von naturanalogen Optimierungsverfahren. In OptiNet können verschiedene naturanaloge Optimierungsverfahren mit unterschiedlichen Problemrepräsentatio-nen (charakteristische...

This paper investigates GA approaches for solving the reliable communicationnetwork design problem. For solving this problem a graph withminimum cost must be found that satises a given network reliabilityconstraint. To consider the additional reliability constraint dierent approachesare...

OECD countries are increasingly referred to as "network societies". This prompts questions about educational networks: to what extent can they replace cumbersome bureaucracies as forms of management and as sources of innovation and professionalism? Some predict the demise of large, slow-changing...