Ralph C.A. Rippe

Curriculum Vitae

  • PhD Candidate at the Data Theory Group, Department of Education, Leiden University. The research project focuses on nonlinear modeling with high volume data set from systems biology (2006 - present).
  • PhD Representative IOPS 2008-2009 (2 full years).
  • Jury Member for best Student Thesis in the Faculty of Social and Behavioral Sciences 2008.
  • Jury Member for best Student Thesis in the Faculty of Social and Behavioral Sciences 2007.
  • Jury Member for best Student Thesis in the Faculty of Social and Behavioral Sciences 2006.
  • Alumni-representative Master track 'Methods and Statistics' for Educational Assessment 2006.
  • Master's thesis on restricted multiple correspondence analysis (HOMALS), supervised by prof. dr. W.J. Heiser and dr. C.M. van Putten (2006).
  • M.Sc. in Psychology, cum laude, at the Methods and Statistics division, Department of Psychology, Leiden University (2006).
  • Student Member in Master Track-committee 2005-2006.
  • Teaching assistant with prof. dr. A. Mooijaart (2006).
  • University education in Psychometrics and Research Methodology, at the Department of Psychology, Leiden University (2002-2006).

Research Areas

  • Nonlinear Optimal Scaling methods (Wide Data Sets)
  • Systems Biology
  • Genotyping
  • Software Development
  • Requirements Engineering
  • Data Structures and Algorithm Analysis

Publications

Rippe, R.C.A., Eilers, P.H.C., French, P.J., and Meulman, J.J. (2009). Improving SNP genotyping by model-based calibration. Proceedings of the 24th International Workshop on Statistical Modelling (Ed. J. G. Booth).

Rippe, R.C.A., Eilers, P.H.C., and Meulman, J.J. (2008). Models for Fluorescence Signals on SNP Arrays. Proceedings of the 23rd InternationalWorkshop on Statistical Modelling (Ed. P.H.C. Eilers).

Unpublished works

Rippe, R.C.A. (2006). Multiple Correspondence Analysis with structurally incomplete data: Eliminating design effects with ORTHOMALS. (Master's thesis) Leiden: Department of Psychology, Psychometrics and Research Methodology division, Leiden University.

Rippe, R.C.A. (2005). Homogeniteitsanalyse van structureel onvolledige gegevens met HOMALS: Rekenstrategieen van basis- schoolleerlingen bij het oplossen van deelsommen uit de PPON 2004. (Bachelor's thesis) Leiden: Department of Psychology, Psychometrics and Research Methodology division, Leiden University.

Honors, Awards, Grants, Funds

2009: Awarded for Best Student Paper at the 24th International Workshop on Statistical Modeling (Ithaca, NY, USA).

2009: Awarded for Best Poster at the Second IBS Channel Network Conference (Ghent, Belgium).

2008: Invitation for KNAW symposium: Onzekerheid in Meten en Weten

2008: Invitation for Graduate School seminar Networking: Do's and Don'ts

2007: LUF travel fund

2007: Invitation for KNAW Colloquia: Advising on Research Methods

2006: Nomination Van de Geer-award for Best MSc Thesis 2005-2006, Dept. of Psychology

Teaching Acitivities

  • Course Organizer & Daily Coordinator
    'Applied Multivariate Data Analysis' (2006 - 2009)
  • Teacher SPSS sessions (2007 - 2009)
  • Teacher Oefenonderzoek 'Interacties in de kinderopvang' (2006)

Presentations

Rippe, R.C.A., Eilers, P.H.C., French, P.J. and Meulman, J.J. (2009). Improving SNP genotyping by model-based calibration. 24th International Workshop on Statistical Modelling, Ithaca NY (USA). July, 2009.

Rippe, R.C.A., Eilers, P.H.C. and Meulman, J.J. (2009). Improving SNP genotyping by model-based data correction. Second IBS Channel Network Conference, Ghent (Belgium). April, 2009.

Rippe, R.C.A., Eilers, P.H.C. and Meulman, J.J. (2009). Improving SNP genotyping by model-based data correction. 11th Biennial Conference of the International Federation of Classification Societies, Dresden (Germany). March, 2009.

Rippe, R.C.A., Eilers, P.H.C. and Meulman, J.J. (2008). Models for fluorescence Signals on SNP Arrays. IWSM, Utrecht. July, 2008.

Rippe, R.C.A. (2007). Systematic modelling of large biological datasets. IOPS Winter Conference, Groningen, The Netherlands. December 12-13, 2007.

Rippe, R.C.A. (2007). Systematic modelling of DNA data: Predicting fluorescence intensities of SNP arrays. International Meeting of the Psychometric Society, Tokyo, Japan. July 12, 2007.

Software

SCALA FileConvertor (2009-2010). Converts several SNP platforms to SCALA format.
Download

SCALA FileConvertor Manual (PDF) (2009-2010).
Download

SCALA (2008-2010). R program for modelling SNP data.
Download

SCALA Manual (PDF) (2008-2010).
Download

SCALAMap (2009-2010). R program for CNV and LOH detection and quantification in SNP data.
Download

SCALAMap Manual (PDF) (2009-2010).
Download

Page last modified on Thursday, February 18, 2010.