More info about Hans J. Skaug

Hans J. Skaug

Research interests

I am interested in applications of statistics and probability to biology, especially to marine ecology. A second field of research is computational statistics. My conjecture about the future is that a combination of the Laplace approximation and Automatic Differentiation will enable the statistician to build and fit (almost) all the latent variable models he/she would like.

I am involved with the AD Model Builder project.

Topics on which I have published:

Line transect methods (double observer data)
Use of DNA-profiler in the study of animal populations
Hierarchical statistical models
Computational statistics, automatic differentiation

Software

R code for method in Skaug et al (2010) "Detecting dyads of related individuals in large collections of dna-profiles by controlling the false discovery rate"

Publications

Mauritzen, M., Skaug, H.J., Øen, N. (2009) Line transects, environmental data and GIS: cetacean habitat and prey selection along the Barents Sea shelf edge. I Øen, N., Pike, D. (Eds.) North Atlantic Sighting Surveys. North Atlantic Marine Mammal Commission Scientific Publications, Troms
Kleppe, T.S., Skaug, H.J. (2008) Building and Fitting non-Gaussian latent variable models via the moment generating function. Scandinavian Journal of Statistics 35: 664-676.
Skaug, H.J., Berube, M., Rew, M.B. Palsboll, P.J. (2008) Genetic analyses reveal promiscuous mating in female minke whales, Balaenoptera acutorostrata. Journal of Cetacean Research and Management 9:249-251.
Lunde, A., Paulsen, J., Skaug, H.J. (2008). Fitting mixed-effects models when data are left truncated. Insurance: Mathematics and Economics 41: 121-133.
Skaug, H.J., Frimannslund, L., Øien, N. (2007) Historical population assessment of Barents Sea harp sea's (Pagophilus groenlandicus). ICES Journal of Marine Science 64: 1356-1365.
Kitakado, T., Kitada, S., Kishino, H., Skaug H. (2006), An integrated likelihood method for estimating genetic differentiation between populations; Genetics. 173: p. 2073-2082.
Palsbøll, P.J., Bérubé, M., Skaug, H.J., Raymakers, C. (2006), DNA registers of legally obtained wildlife and derived products as means to identify illegal takes; Conservation Biology. 4: p. 1284-1293.
Skaug, H.J., Fournier D. (2006), Automatic Approximation of the Marginal Likelihood in non-Gaussian Hierarchical Models; Computational Statistics and Data Analysis. 51: 699-709
Skaug, H.J. (2006), Markov modulated Poisson processes for clustered line transect data; Environmental and Ecological Statistics. 13: 199-211
Trenkel, V., Skaug, H.J. (2005), Disentangling the effects of trawl efficiency and population abundance on catch data using random effects models; ICES Journal of Marine Science. 62: 1543-1555
Skaug, H.J., Nils Øien, Tore Schweder, Gjermund Bøthun (2004), Abundance of minke whales (Balaenoptera acutorostrata) in the Northeastern Atlantic; Canadian Journal of Fisheries and Aquatic Sciences. 61 p. 870-886.
Skaug, H.J. (2002), Automatic differentiation to facilitate maximum likelihood estimation in nonlinear random effects models. Journal of Computational and Graphical Statistics. 11: p. 458-470.
Skaug, H.J. (2001), Allele-sharing methods for estimation of population size. Biometrics, 55: p. 750-756.
Skaug, H.J. (2001), Automatic differentiation, in A. El-Shaarawi and W. Piegorsch, eds. Encyclopedia of Environmetrics, J. Wiley, p. 136-139.
Schweder, T., Skaug, H.J., Langaas, M., Dimakos, X. (1999), Simulated likelihood methods for complex double-platform line transect surveys, Biometrics, 55: p. 678-687.
Skaug, H.J. and Schweder, T. (1999), Hazard models for line transect surveys with independent observers, Biometrics, 55: p. 29-36.
Skaug, H.J., Gjøsæter, H., Haug, T, Lindstrøm, U., Nilssen, K. (1997), Do minke whales Balaenoptera Acutorostrata exhibit particullar prey preferences? J. Northw. Atl. Fish. Sci. 22: p. 91-104.
Skaug, H.J (1997), Perpendicular Distance Line Transect Methods based on Integrated Spatial Hazard Probability Models, Rep. int. Whal. Commn., 47: p. 493-497.
Schweder, T., Skaug, H.J., Dimakos, X., Langaas, M. and Øien, N. (1997), Abundance estimates for northeastern Atlantic minke whales, Estimates for 1989 and 1995, Rep. int. Whal. Commn., 47: p. 453-483.
Skaug, H.J. and Tjøstheim, D. (1996), Testing for serial independence using measures of distance between densities. Athens Conference on Applied Probability and Time Series, P.M. Robinson and M. Rosenblatt eds. Springer Lecture Notes in Statistics 115, Springer, New York.
Skaug, H.J. and Tjøstheim, D. (1993), A nonparametric test of serial independence based on the empirical distribution function. Biometrika, 80: p. 591-602
Skaug, H.J. and Tjøstheim, D. (1993), Nonparametric Tests of Serial Independence, in Developments in Time Series Analysis, edited by T. Subba Rao, Chapman and Hall.