Chair for computeroriented statistics and
data analysis
Visualising Information
Interactive graphics are a very effective and intuitive way of
gaining insights from data. We have developed and are further
developing these methods in the MANET package, especially for larger
data sets, to provide Data Mining Visualisation software.
Large Data Sets
Large data sets are complex, there are far more date, far more
variables and far more structure. They arise in environmental
investigations, financial data bases and everywhere. The data can be
analysed in much greater depth, but classical statistical methods do
not always scale up. We are interested in more flexible data
manipulation tools, better analytic tools and new visualisation
methods. Visualisation is essential to get an overview of the data,
to monitor data quality and to interpret results.
Exploratory Data Analysis and Exploratory Modelling
Analysis
Modern, innovative software enables not only true Exploratory
Data Analysis but also Exploratory Modelling Analysis, that is the
reviewing and comparison of multiple competing models of data. MANET
is primarily designed for EDA, but also gives an overview of many
models through graphical analyses of residuals. TURNER offers many
tools for exploratory investigation and manipulation of contingency
tables, but its strength is the flexible comparison of loglinear
models. It is a major aim of the department to extend the ideas
underlying Exploratory Modelling Analysis.
Software development
Methods have to be theoretically researched, implemented in
software and tried out in practice. Our group lays great store on the
elegant, consistent and intuitive software implementation of our
ideas.
Cooperation
We cooperate with other university researchers, with
administrative organisations and with commercial companies. We are
always interested in new applications for testing our ideas and for
the generation of novel visualisation and analytical methods.
|