Henrik Stryhn

Welcome to my home page.

I am a statistician. From September 1st 2001, I work as associate professor in biostatistics at the Atlantic Veterinary College, University of Prince Edward Island, Prince Edward Island, Canada. This is the version of my homepage in Denmark, as of 27/9-2001; updates will from now on take place only on the Canadian version of my homepage.

From May 1997 to August 2001, I worked as a senior scientist at the Danish Veterinary Laboratory (SVS) in Copenhagen. Before then I was at the Department of Mathematics and Physics of the Royal Veterinary and Agricultural University (KVL) in Copenhagen, Denmark. (For convenience I still maintain my home page at the old address.)

My work involves research within statistical methods in veterinary epidemiology. One of my major involvements at SVS was in the IBIS project (Informatics-Based monitoring of Infections and prevention of Spread of infections in livestock production). Also I am affiliated to Dina, Danish Informatics Network in the Agricultural Sciences, in particular as a consultant in statistics for the Dina Postgraduate School.

Research

My work in the IBIS project aims at development/adaptation of statistical methods to analysis of observational veterinary data extracted from the Danish databases within the animal agricultural production. In March 2001 I gave an

The statistical methods relevant to such data include survival analysis and generalised linear mixed models. Some of my work in the latter field is summarised in the following conference presentations, paper on Salmonella in chickens and lecture on clustered data analysis: Another topic in the IBIS project is risk analysis. The IBIS project hosts a one-day seminar on Risk Analysis in Veterinary Science. Joint work with a PhD student, Mimi Folden Jensen, on Newcastle Disease in poultry has been presented at the 9th Conference of the Society for Risk Analysis, Rotterdam, October 1999. This is a link to the presentation (Powerpoint) by Mimi Folden Jensen.

I have also worked on diagnostic tests, in particular combination of tests and estimation by latent class models,

My previous research has involved spatial statistics and image analysis, change-point models, inference in stochastic processes - in particular diffusion and marked point process models - as well as many aspects of `classical' statistics, including generalised linear (mixed) models. Some references:

Teaching

In May 2001, I participated as a lecturer in the CAVEPM course An Introduction to Multi-level Modelling, at Prince Edward Island, Canada. Slightly revised versions of the lecture notes and of lecture overheads are available as zipped pdf-files. Also, some supplementary material for the practicals is available as zipped text files and MLwiN worksheets.

Since 1997, I have been affiliated to the Dina Postgraduate School, which among other things organises workshops and summer schools for PhD students. The most recent activity primarily in statistics was a Nordic Summer School on Computer-intensive Statistical Methods with Biological Applications, (August 1999, Tune, Denmark). Other activities involving statistics were Danish workshops on Biosekvensanalyse (April 2000, Koldk‘rgaard, Denmark) Bayesian networks (April 1999, Koldk‘rgaard, Denmark) and on Statistical Simulation (April 1998, Tune, Denmark).

In August 2000, I participated as a lecturer in the pre-ISVEE course Mixed Models for Continuous and Discrete Data in Veterinary Epidemiology. Notes on Introduction to variance components and Variance component estimation in linear data - Applications are available as pdf-files (both 4 pages, the latter part of joint notes with Ian Dohoo).

In the 1997-98 semester I gave a course in Stochastic Processes (Statistik 1B) at the Department of Theoretical Statistics, University of Copenhagen.

In June 1998, I participated (as lecturer) in the Nordic Course in Advanced Veterinary Epidemiology given by Ian Dohoo. This is a link to some of my teaching material there (lecture, exercises, programs; ftp-address, please read file readme.txt).

In the spring semester of 1997 I gave the PhD course Basic Statistics for Veterinary and Related Sciences at KVL. This is a link to the homepage (in English) of the '97 version of the course.

During the years 1990-97 I have taught most of the statistics courses at KVL.

Other teaching material

Administration/Organisation

Address

Department of Health Management, Atlantic Veterinary College, University of P.E.I., Charlottetown, Prince Edward Island, C1A 4P3 CANADA, phone: (1-902) 894-2847, fax: (1-902) 566-0823, e-mail: hstryhn@upei.ca.
Henrik Stryhn (hes@dina.kvl.dk) 2001-09-27