| Location, Date | Title | Description | Download |
| Leiden Observatory Colloquium, January 2012 | Patterns in astronomical impacts on the Earth: Testing the claims | astroimpacts.org | [PDF] |
| Gaia Ground Segment Implementation Review, 28 September 2011, ESOC | Inferring interstellar Galactic extinction with Gaia | Presentation to the Science Panel | [PDF] |
| ISM Workshop, Leiden, July 2011 | Inferring interstellar Galactic extinction with Gaia | Overview of what Gaia will do for extinction | [PDF] |
| JENAM 2010
and AG 2010
in September 2010 and ADASS 2010 November 2010 |
Bayesian inference of stellar parameters and interstellar extinction using parallaxes and multiband photometry | Based on the qmethod paper | [PDF] |
| ELSA Workshop, Heidelberg October 2009 | Estimating parameters from multidimensional data | ILIUM | [PDF] |
| JENAM 2009
21 April 2009 |
Classification for large surveys: building pure samples of rare objects | Based on the DSC QSO paper | [PDF] |
| Presentation to the group of Bernhard Schölkopf at the Max Planck Institute
for Biological Cybernetics 19 November 2008 |
Finding rare objects in astronomical surveys | Based on the DSC QSO paper | [PDF] |
| ESLAB08 "Cosmic
Cataclysms and Life" 11 November 2008 |
Revealing the relevance of the solar orbit on terrestrial climate and cataclysms using Gaia | A review of this controversial topic and a look ahead to how Gaia might partly resolve it. See this paper for a full discussion | [PDF] |
| ELSA workshop on software engineering and numerics, Barcelona 5 Sept 2008 |
Classification algorithms for Gaia | An outline of the Gaia DSC and GSP-Phot algorithms, based on Support Vector Machines | [PDF] |
| IAU Symposium 254, The Galactic disk in a cosmological
context 13 June 2008 |
What will Gaia do for the Galactic disk? | Mission, science, spiral arms and ice ages | [PDF] |
| University College London, Department of Mathematical Statistics 4 February 2008 |
Classification and parameter estimation in astronomy | [ODP] [PDF] | |
| 2nd Heidelberg Astronomy School, 5 September 2007 |
The Gaia Galactic Survey Mission | Mission, satellite, science | [ODP] [PDF] |
| MPIA Galaxy Coffee, 29 June 2007 |
The Gaia Galactic Survey Mission | Mission, satellite, data processing and the role of MPIA | [ODP] |
| IAU General Assembly, Prague August 2006 |
Gaia data processing | [ODP] | |
| Armagh Observatory, 29 June 2007 |
The Gaia all-sky astrometric and spectrophotometric survey | Principle, instruments, mission and science overview | [ODP] |
| Strasbourg Observatory, 25 November 2005 |
The Gaia Challenge | Principle, instruments, mission and science overview | [SXI] [PPT] [PDF] |
| University of Potsdam, 14 October 2005 |
The impact of Gaia on the future of astrophysics | Focus on some of the Gaia science contributions | [SXI] [PPT] |
| University of Basel, 1 July 2005 |
Mapping the universe in six dimensions with Gaia | Overview of Gaia science and mission as of mid 2005 | [SXI] [PDF] |
| German Gaia co-ordination meeting, Heidelberg, November 2004 | Overview of the Gaia project | Summary of Gaia mission/science (brief) and organization of community for the data processing | [SXI] [PDF] |
| The three dimensional universe with Gaia, Paris, October 2004 | Object classification and the determination of stellar parameters | Classification objectives and issues with Gaia | [SXI] [PDF] |
| PWG meeting, Copenhagen, June 2004 | HFD filter system design for Gaia | A design strategy for designing filters for surveys | [SXI] [PDF] |
| IAU Symposium 196 (Transits of Venus), Preston, June 2004 | Microarcsecond Astrometry with Gaia: The Solar System, the Galaxy and Beyond | Overview of the Gaia mission and science as of mid 2004 | [SXI] [PDF] |
| PWG meeting, Leiden, October 2003 | Heuristic design of filter systems using an evolutionary algorithm | A design strategy for designing filters for surveys | [SXI] [PDF] |
| Monte Rosa conference, September 2002 | Classification of GAIA data | Overview of classification issues and some examples | [PPT] |
| National Astronomy Meeting (UK), Bristol, April 2002 | Object classification physical parametrization with GAIA and other large surveys | Classification objectives and issues | [PPT] |
| Max-Planck-Institute for Astronomy, 2002 | GAIA. Composition, Formation and Evoltion of Our Galaxy | Overview of Gaia science and mission as of 2002 | [PPT] |