This paper estimates the impact of peer achievement and variance on math achievement growth. It exploits exogenous variation in peer characteristics generated at the transition to upper-secondary school in a sample of Berlin fifth graders. Parents and schools are barely able to condition their...

Peer-to-peer (P2P) networks comprise structures of autonomous, egalitarian nodes which collaboratively share resources without relying on central coordination mecha-nisms. Traditional networks store data and information on centralized servers, whereas computers in P2P networks act simultaneously...

Dieser Bericht dokumentiert das System VUWizard, Version 1.0. Das Tool dient zur Darstellung eines VU mit seinen Partnern, Anwendungssystemen, Kopplungsbeziehungen und Datenkonvertierungsvorschriften. Zunächst motiviert die Arbeit die Notwendigkeit und Einsatzumgebung des Prototypen. Dann...

Der Beitrag stellt mit Business Service Blueprint Modeling (BSBM) einen konzeptionellenAnsatz zur Modellierung von Dienstleistungen vor, der ein systematischesund standardisiertes Vorgehen zur Modellierung von Dienstleistungen mitKundeninteraktion anstrebt. BSBM verwendet hierzu die Business...

We propose a new approach for mobile visualization andinteraction of temporal information by integrating supportfor time with today's most prevalent visualization of spatialinformation, the map. Our approach allows for an easy andprecise selection of the time that is of interest and...

Geographical Information Systems (GISs) are often used to assist marketing planners inidentifying suitable retail locations, regionally distributing advertising campaigns, or targetingdirect marketing activities. GIS–thematic maps facilitate the visual assessment of mapregions.A broad set of...

Exploratory factor analysis (EFA) is an important tool in data analyses,particularly in social science. Usually four steps are carried out which contain alarge number of options. One important option is the number of factors and theassociation of variables with a factor. Our tools aim to...

This paper presents a method for visualizing competitive market structures based on scanner panel data where asymmetries are taken into account. For this, I combined consumer choice models based on mixed logit models with three-mode principal component analysis. This approach can be used to...

This book is the third volume of the Handbook of Computational Statisticsand covers the field of Data Visualization. In line with the companion volumes,it contains a collection of chapters by experts in the field to present readerswith an up-to-date and comprehensive overview of the state of the...

Das Ziel dieses Forschungsvorhabens war die Entwicklung eines praxistauglichenKonzepts zur Leistungs- und Qualitätssteigerung in der manuellen Kommissionierungdurch den Einsatz der Augmented Reality Technologie (Pick-by-Vision). Dem Kommissioniererwerden mittels einer Datenbrille alle für die...