Dr. Werner Ehm
Education
study of mathematics and (as secondary subjects) physics and economy at Universities Erlangen and Heidelberg
promotion (Dr. rer. nat.) in mathematics at University of Heidelberg (1979), with a dissertation about multi-parameter stochastic processes; advisor: D.W. Müller
habilitation / venia legendi in mathematics at University of Heidelberg, 1992/3; Habilitationsschrift: 'Statistical problems with many parameters: Critical quantities for approximate normality and posterior density based inference'
Positions
member of Sonderforschungsbereich 'Stochastische mathematische Modelle' at University of Heidelberg until 1992
until 1998 research, teaching, statistical consulting, and substitution of professorships at Universities of Heidelberg, Frankfurt, Trier, Munich (TU), and Bayreuth
since 1998 staff member of the department 'Theory and Data Analysis' at the Institute for Frontier Areas of Psychology and Mental Health in Freiburg
Research areas
modeling and mathematical/statistical analysis of psycho- and neurophysiological processes, applied and theoretical statistics, stochastic processes, analytic methods in probability theory
Some recent publications
I. Reimer, B. Staude, WE and S. Rotter. Modeling and analyzing higher-order correlations in non-Poissonian spike trains. J. Neurosci. Meth., to appear
WE and T. Gneiting. Local proper scoring rules of order two.
Ann. Statist. 40 (2012), 609-637
WE. A variational approach to geometric-optical illusions modeling. In D. Algom et al. (Eds.), Fechner Day 2011. Raanana, Israel: International Society for Psychophysics, 2011, 41-46
WE. Unbiased risk estimation and scoring rules.
C. R. Acad. Sci. Paris, Ser. I
349 (2011), 699-702
WE, M. Bach and J. Kornmeier. Ambiguous figures and binding: EEG frequency modulations during multistable perception. Psychophysiology 48 (2011), 547-558
WE. Broad views of the philosophy of nature: Riemann, Herbart, and the "matter of the mind". Philosophical Psychology 23 (2010), 141-162
WE. Projections on invariant subspaces.
In Algebraic Methods in Statistics and Probability II. Eds. M. Viana and H. P. Wynn. Contemporary Mathematics 516, Amer. Math. Soc., Providence, RI, 2010, 179-188
WE, B. Staude and S. Rotter. Decomposition of neuronal assembly activity via empirical de-Poissonization. Electron. J. Statist. 1 (2007), 473-495
WE. A Riemann zeta stochastic process.
C. R. Acad. Sci. Paris, Ser. I
345 (2007), 279-282
J. Kornmeier, WE, H. Bigalke and M. Bach. Discontinuous presentation of ambiguous figures:
How interstimulus-interval durations affect reversal dynamics and ERPs.
Psychophysiology 44 (2007), 552-560
J. Wackermann and WE. The dual klepsydra model of internal time representation and time reproduction. J. Theoret. Biol. 239 (2006), 482-493
WE. Meta-analysis of mind-matter experiments: A statistical modeling perspective.
Mind & Matter 3 (2005), 85-132
WE, T. Gneiting and D. Richards. Convolution roots of radial positive definite functions with compact support. Trans. Amer. Math. Soc. 356 (2004), 4655-4685
