Stellar parameter estimation in the Gaia Data Processing and Analysis Consortium, Frontiers of Stellar Spectroscopy in the Local Group and Beyond, MPIA Heidelberg, April 2015 [PDF]
A Bayesian method for the analysis of deterministic and stochastic time series, DPG Spring meeting, March 2015 [PDF]
Gaia and MPIA, MPIA PSF Seminar, February 2013 [PDF]
Patterns in astronomical impacts on the Earth: Testing the claims, Leiden Observatory Colloquium, January 2012 [astroimpacts.org] [PDF]
Overview of the DPAC "Astrophysical Parameters" Coordination Unit, Gaia Ground Segment Implementation Review, 28 September 2011, ESOC [PDF]
Inferring interstellar Galactic extinction with Gaia, ISM Workshop, Leiden, July 2011 [PDF]
Bayesian inference of stellar parameters and interstellar extinction using parallaxes and multiband photometry, JENAM 2010 and AG 2010 in September 2010 and ADASS 2010 November 2010 [PDF]
Estimating parameters from multidimensional data, ELSA Workshop, Heidelberg October 2009 [PDF]
Classification for large surveys: building pure samples of rare objects, JENAM 2009, 21 April 2009 [PDF]
Finding rare objects in astronomical surveys, Presentation to the group of Bernhard Schölkopf at the Max Planck Institute for Biological Cybernetics, 19 November 2008 [PDF]
Revealing the relevance of the solar orbit on terrestrial climate and cataclysms using Gaia, ESLAB08 "Cosmic Cataclysms and Life", 11 November 2008, [PDF]
Classification algorithms for Gaia, ELSA workshop on software engineering and numerics, Barcelona, 5 Sept 2008 [PDF]
What will Gaia do for the Galactic disk?, IAU Symposium 254, The Galactic disk in a cosmological context, 13 June 2008 [PDF]
Classification and parameter estimation in astronomy, University College London, Department of Mathematical Statistics, 4 February 2008 [PDF] [ODP]
The Gaia Galactic Survey Mission, 2nd Heidelberg Astronomy School, 5 September 2007 [PDF] [ODP]
The Gaia Galactic Survey Mission, MPIA Galaxy Coffee, 29 June 2007 [ODP]
Gaia data processing, IAU General Assembly, Prague, August 2006 [ODP]
The Gaia all-sky astrometric and spectrophotometric survey, Armagh Observatory, 29 June 2007 [PDF]
The Gaia Challenge, Strasbourg Observatory, 25 November 2005 [PDF] [PPT]
The impact of Gaia on the future of astrophysics, University of Potsdam, 14 October 2005 [PPT]
Mapping the universe in six dimensions with Gaia, University of Basel, 1 July 2005 [PDF]
Overview of the Gaia project, German Gaia co-ordination meeting, Heidelberg, November 2004 [PDF]
Object classification and the determination of stellar parameters, The three dimensional universe with Gaia, Paris, October 2004 [PDF]
HFD filter system design for Gaia, PWG meeting, Copenhagen, June 2004 [PDF]
Microarcsecond Astrometry with Gaia: The Solar System, the Galaxy and Beyond, IAU Symposium 196 (Transits of Venus), Preston, June 2004 [PDF]
Heuristic design of filter systems using an evolutionary algorithm, PWG meeting, Leiden, October 2003 [PDF]
Classification of GAIA data, Monte Rosa conference, September 2002 [PPT]
Object classification physical parametrization with GAIA and other large surveys, National Astronomy Meeting (UK), Bristol, April 2002 [PPT]
GAIA. Composition, Formation and Evoltion of Our Galaxy, Max-Planck-Institute for Astronomy, 2002 [PPT]