Research interests

• hidden Markov and semi-Markov models
• state-space models
• point processes
• ecological and environmental statistics
• statistical modelling of animal movement
• nonparametric methods

Short biography

Scientific work

• Langrock, R., 2012. "Flexible latent-state modelling of Old Faithful's eruption inter-arrival times in 2009"
  tentatively accepted for publication in the Australian and New Zealand Journal of Statistics.
• Schliehe-Diecks, S., Kappeler, P. M., Langrock, R., 2012. "On the application of mixed hidden Markov models to multiple behavioural time series"
  Interface Focus, 2 (2), pp. 180-189.
• Langrock, R., MacDonald, I., Zucchini, W., 2012. "Some nonstandard stochastic volatility models and their estimation using structured hidden Markov models"
  Journal of Empirical Finance, 19 (1), pp. 147-161.
• Langrock, R., 2011. "Some applications of nonlinear and non-Gaussian state-space modelling by means of hidden Markov models"
  Journal of Applied Statistics, 38 (12), pp. 2955-2970.
• Langrock, R., Zucchini, W., 2011. "Hidden Markov models with arbitrary dwell-time distributions"
  Computational Statistics and Data Analysis, 55 (1), pp. 715-724.

• Heidenreich, N., Langrock, R., Sperlich, S., 2011. (A paper on multivariate kernel regression)
  in revision
• Wichelhaus, C., Langrock, R., 2011. (A paper on point processes)
  in revision
• Langrock, R., Swihart, B., Caffo, B., Crainiceanu, C., Punjabi, N., 2011. (A paper on an HMM application to sleep EEG data)
  in revision
• Langrock, R., King, R., Matthiopoulos, J., Thomas, L., Fortin, D., Morales, J. M., 2011. (A paper on HMMs for animal movement)
  in revision
• Langrock, R., King, R., 2012. (A paper on mark-recapture-recovery studies with continuous covariates)
  in preparation
• Borchers, D., Langrock, R., Skaug, H., 2012. (A paper on availability modelling in distance sampling)
  in preparation

• Langrock, R., 2011. "On some special-purpose hidden Markov models" (pdf)
  PhD thesis, University of Goettingen.
• Langrock, R., 2008. "Spectral analysis of multivariate random measures" (pdf of short version without simulation section)
  Diploma thesis, University of Heidelberg.

Forthcoming
• "Extensions of hidden Markov models for animal telemetry data"
  ISEC 2012, Oslo, July 2012

Past
• "Availability modelling in distance sampling" (slides)
  Research Unit for Wildlife Population Assessment, St Andrews, UK, April 2012
• "Flexible hidden Markov-type modelling of the eruption inter-arrival times of the Old Faithful geyser" (slides)
  YSM 2012, Cambridge, UK, April 2012
• "Animal movement modelling: overview of approaches and an example application to multiple bison movement paths" (slides)
  Durham statistics seminar series, Durham, UK, 2012
• "A non-exhaustive overview of animal movement models" (slides)
  Inaugural joint meeting of the Computational Ecology Special Interest Group of the BES and the British and Irish Region of the IBS 2011, London, UK, 2011
• "Modelling the feeding behavior of a population of Madagascan grey mouse lemurs via nonhomogeneous mixed hidden Markov models" (slides)
  Mathematical and Theoretical Ecology 2011, Colchester, UK, 2011
• "Nonlinear and non-Gaussian state-space modelling by means of hidden Markov models" (slides)
  University of St Andrews, UK, 2010
• "Estimating standard and nonstandard stochastic volatility models using structured hidden Markov models" (slides)
  28th European Meeting of Statisticians, Piräus, Greece, 2010
• "Representing hidden semi-Markov models as hidden Markov models" (slides)
  2nd International Workshop of the ERCIM Working Group on Computing & Statistics, Limassol, Cyprus, 2009
• "Approximating hidden semi-Markov models by hidden Markov models" (paper in proceedings)
  The 57th Session of the International Statistical Institute, Durban, South Africa, 2009

Former courses

• Bayesian Methods and Hidden Markov Models
  - WS 2010/11, exercise course
  
• Time Series Analysis
  - WS 2008/09, exercise course (German)
  
• Generalized Linear Models and Nonparametric Methods
  - SS 2008, exercise course
  - SS 2009, exercise course
  - SS 2010, exercise course
  - SS 2011, exercise course
  
• Model Selection and Bootstrapping
  - WS 2009/10, exercise course

• Hüte, Nägel und Schuhkartons - Faszinierende Mathematik
  - July/August 2009, Deutsche SchülerAkademie (German)


• »It's magic« - Kaum zu glaubende mathematische Problemlösungen
  - July/August 2010, Deutsche SchülerAkademie (German)

Links

• My bicycle journeys (German)
• PhD comics