Interesse di ricerca • Pubblicazioni • Conferenze e poster • Altro

Interesse di ricerca

• Probabilità imprecisa e concetti collegati
• Metodi Bayesiani (generalizzati) e prior-data conflict
• Metodi di regressione
• Metodi statistici in epidemiologia

Pubblicazioni

Articles and conference papers (peer-reviewed)

• Gero Walter, Thomas Augustin, and Frank Coolen (2011):
  On Prior-Data Conflict in Predictive Bernoulli Inferences.
  In: Frank Coolen, Gert de Cooman, Thomas Fetz and Michael Oberguggenberger (eds.),
  ISIPTA '11: Proceedings of the Seventh International Symposium on Imprecise Probabilities and Their Applications, Innsbruck, Austria.
  (The complete Proceedings can be downloaded here.)
   
• Gero Walter and Thomas Augustin (2009):
  Imprecision and prior-data conflict in generalized Bayesian inference.
  Journal of Statistical Theory and Practice 3, pp. 255-271 (Special Issue on Imprecision).
  
  Also published as book chapter in:
  P. Coolen-Schrijner, F. Coolen, M.C.M. Troffaes, T. Augustin and S. Gupta (eds.),
  Imprecision in Statistical Theory and Practice, Grace Scientific Publishing, Greensboro, USA, 2009.
  (ISBN: 978-0-9823998-0-4)
   
• Gero Walter, Thomas Augustin, and Annette Peters (2007):
  Linear Regression Analysis under Sets of Conjugate Priors.
  In: Gert de Cooman, Jiřina Vejnarová and Marco Zaffalon (eds.),
  ISIPTA '07: Proceedings of the Fifth International Symposium on Imprecise Probabilities and Their Applications, Prague, Czech Republic, pp. 445-455.
  (The complete Proceedings can be downloaded here.)
  Supplementary material:
  • Supplement: The Normal Regression Model as a LUCK-model
  • Supplement: Sketch of an Alternative Approach to Linear Regression Analysis under Sets of Conjugate Priors

Further book chapters

• Gero Walter and Thomas Augustin (2010):
  Bayesian linear regression — different conjugate models and their (in)sensitivity to prior-data conflict.
  In: Thomas Kneib and Gerhard Tutz (eds.),
  Statistical Modelling and Regression Structures — Festschrift in the Honour of Ludwig Fahrmeir, Physica, 2010.
  
  Also published as Technical Report no. 69 of the Department of Statistics, LMU Munich.

Diploma Thesis

• Gero Walter (2006): Robuste Bayes-Regression mit Mengen von Prioris — Ein Beitrag zur Statistik unter komplexer Unsicherheit. ("Robust Bayes Regression with Sets of Priors — a Contribution to Statistics with Complex Uncertainty", in German)
  Diploma thesis, Department of Statistics, LMU Munich.

Conferenze e poster

Talks

• Sets of canonical parameters in imprecise Bayesian inference with conjugate priors,
  Workshop on Geometry of Imprecise Probability and related Statistical Methods (GEOMIP-11), Durham University, UK, November 1st, 2011.
• A New Class of Parameter Shapes for Generalized iLUCK Models,
  Forth Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 4), University of Ljubljana, September 9th, 2011.
• Imprecise Bayesian Linear Regression,
  Forth Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 4), University of Ljubljana, September 5th, 2011. (Talk at the blackboard.)
• Regression Models in Statistics — A Short Guide Through a Set of Abbreviations Containing the Letters L, M, G, and A,
  Forth Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 4), University of Ljubljana, September 5th, 2011.
• On Prior-Data Conflict in Predictive Bernoulli Inferences,
  ISIPTA '11, University of Innsbruck, Austria, July 28th, 2011.
• Prior-Data Conflict: a brief introduction,
  Third Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 3), Durham University, UK, September 7th, 2010.
• Software for Generalized iLUCK-models,
  Third Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 3), Durham University, UK, September 6th, 2010.
• "Strong happiness" and other properties of certain imprecise probability models when treating samples sequentially,
  LMU Munich, Germany, May 12th, 2010.
• The Effect of Prior-Data Conflict in Bayesian Linear Regression,
  Lecture Day with Prof. Balakrishnan at Durham University, Durham, UK, April 14th, 2010.
• Prior-Data Conflict and Generalized Bayesian Inference (extended version of March 24th talk below),
  PhD Seminar of the Statistics and Probability Group at Durham University, Durham, UK, March 31st, 2010.
• Prior-Data Conflict and Generalized Bayesian Inference,
  DAGStat 2010, Dortmund, Germany, March 24th, 2010.
• Linear regression with sets of conjugate priors,
  Second Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 2), LMU Munich, Germany, September 14th, 2009.
• Generalized iLUCK-models and prior-data conflict — A contribution to Generalized Bayesian Inference,
  Young Researchers' Workshop of Deutsche Statistische Gesellschaft, Merseburg, Germany, June 4th, 2009.
• Software for Generalized Bayesian Inference for Samples from Exponential Families — An object-oriented R implementation of generalized iLUCK-models,
  LMU Munich, Germany, February 17th, 2009.
• Generalized Bayesian Inference and Prior-data Conflict,
  First Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 1), Durham University, UK, May 16th, 2008.
• Bayesian Estimation of Linear Regression Parameters with Sets of Conjugate Priors,
  First Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 1), Durham University, UK, May 13th, 2008.
• Imprecise probability models and prior-data conflict,
  LMU Munich, Germany, December 11th, 2007.
• Linear Regression Analysis under Sets of Conjugate Priors,
  ISIPTA '07, Charles University, Prague, Czech Republic, July 17th, 2007.

Posters

• On Prior-Data Conflict in Predictive Bernoulli Inferences,
  ISIPTA '11, University of Innsbruck, Austria, July 27th, 2011.
• A Network Analysis of the Imprecise Probability Community based on ISIPTA Electronic Proceedings
  (joint work with Manuel Eugster and Thomas Augustin),
  ISIPTA '11, University of Innsbruck, Austria, July 27th, 2011. (Abstract for the poster; see also Awards.)
• Software for Generalized Bayesian Inference — An object-oriented R implementation of generalized iLUCK-models,
  ISIPTA '09, Durham University, Durham, UK, July 17th, 2009.
  Poster material (The poster was assembled on-site out of a4 prints of this material.)
• Linear Regression Analysis under Sets of Conjugate Priors,
  ISIPTA '07, Charles University, Prague, Czech Republic, July 17th, 2007.

Altro

Awards

• IJAR Young Researcher Award 2011 (Silver Award).
• Best poster award (1st Prize) at ISIPTA '11, for the poster "A Network Analysis of the Imprecise Probability Community based on ISIPTA Electronic Proceedings" (joint work with with Manuel Eugster and Thomas Augustin).

Visiting Researcher

• Research stay (2 months) at the Department of Mathematical Sciences, Durham University, by invitation of Frank Coolen, February - April 2010.

Reviewing

• Review for Biometrical Journal (2011).
• Review for International Journal of Approximate Reasoning (2010).
• Book Review for Elsevier, together with Thomas Augustin and Andrea Wiencierz (2009).
• Review for Journal of Statistical Theory and Practice: Special Issue on Imprecision (2008).

Workshop organization

• Co-organisation of the Forth Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 4) at the Faculty of Social Sciences, University of Ljubljana, September 2011, together with Damjan Škulj, Thomas Augustin, Frank Coolen, Gert de Cooman, and Matthias Troffaes.
• Co-organisation of the Third Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 3) at the Department of Mathematical Sciences, Durham University, September 2010, together with Thomas Augustin, Frank Coolen, Richard Crossman, Nathan Huntley, and Matthias Troffaes.
• Co-organisation of the Second Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 2) at the Department of Statistics, Ludwig-Maximilians-University Munich (LMU), September 2009, together with Thomas Augustin, Marco Cattaneo, and Andrea Wiencierz.

Chairing

• Co-chair of the session on modelling dependence / multivariate statistics, together with Alessio Benavoli, as part of the Forth Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 4) at the Faculty of Social Sciences, University of Ljubljana, September 2011.
• Chair of the session on prior-data conflict, as part of the Third Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 3) at the Department of Mathematical Sciences, Durham University, September 2010.
• Co-chair of the session on regression, together with Jochen Einbeck, as part of the Second Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 2) at the Department of Statistics, Ludwig-Maximilians University Munich (LMU), September 2009.
• Co-chair of the session on regression, together with Jochen Einbeck, as part of the First Workshop on Principles and Methods of Statistical Inference with Interval Probability (WPMSIIP 1) at the Department of Mathematical Sciences, Durham University, May 2008.

Vocational Training

• Participant of the Sommerklausur 2011, meeting of participants in the Promotionsprogramm "Statistik: Theorie und Methoden empirischer Modellierung" (graduate school program at the Department of Statistics, Ludwig-Maximilians University Munich (LMU)), July 22nd - 23rd, 2011.
• Voice training, as part of the Promotionsprogramm "Statistik: Theorie und Methoden empirischer Modellierung" (graduate school program at the Department of Statistics, Ludwig-Maximilians University Munich (LMU)), May - July 2011.
• Course on scientific writing, as part of the Promotionsprogramm "Statistik: Theorie und Methoden empirischer Modellierung" (graduate school program at the Department of Statistics, Ludwig-Maximilians University Munich (LMU)), October - December 2010.
• Participant of the Fourth SIPTA School on Imprecise Probabilities, Durham University, July 2010.
• Participant of the Herbstschule "Reproduzierbare Forschung & Software-Validierung" (autumn school "reproducible research and software validation"), November 2008.
• Participant of the Third SIPTA School on Imprecise Probabilities, Montpellier, July 2008.

ultima modifica: Gero Walter,