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Jesper Rydén

Jesper Rydén
I am a senior lecturer in Biometry.

Presentation

Main duties: research in biometry (i.e. the application of mathematics and statistics to problems in the agricultural, environmental, and biological sciences); statistical consulting; teaching at various levels.

Director of studies for courses at the unit Applied statistics and mathematics.

Teaching

The academic year 2022-2023:

MS0073, Basic mathematical statistics

I have a broad experience of teaching courses in applied statistics, in particular from Uppsala University, e.g. courses in time-series analysis, random processes, regression and analysis of variance, generalised linear models, statistical risk analysis.

Research

Regression models for count data; extreme-value analysis with applications in the earth and engineering sciences. 

Cooperation

2022- : Member of editorial board, Musicae Scientiae.

2019-2021: Secretary in Cramérsällskapet, a division within Swedish Statistical Society.

2018-2019: Collaboration with Pearson Education Ltd as external subject expert.

Projects, ongoing and earlier:

Swedish Radiation Safety Authority: Skattning av extremvärden för naturfenomen för de svenska kärnkraftverken. Principal investigator: Jesper Rydén, SLU. HT2022-HT2023.

Formas: Loss of beef during primary production in Sweden: quantities, causes, food potential and carbon footprint and economically assessed measures. Principal investigator: Dr. Ingrid Strid, SLU (J. Rydén 1.25%). 2021-12-01 - 2025-11-30.

Formas: Investigation of ventilation and indoor-environment related parameters in modern detached houses. Principal investigator: Dr. Hans Bagge, LTH (J. Rydén 3%). 2016-07-01 - 2020-03-31.​

SweGRIDS: Novel application of computational intense statistical methods for improved asset management. Principal investigator: Dr. Patrik Hilber, KTH (J. Rydén 0%). 2018-03-01 - 2020-03-01​.

Background

Docent in Mathematical Statistics (2010), Uppsala University. 

PhD in Mathematical Statistics (2002), Lund Institute of Technology.

MSc in Engineering Physics (1996), Lund Institute of Technology.

Supervision

Assistant supervisor for PhD student Harimurti Buntaran (licentiate thesis, September 2019).

Selected publications

Articles in journals

Submitted:

Hanås, S., Larsson, A., Rydén, J., Lilliehök, I., Häggström, J., Tidholm, A., Höglund, K., Ljungvall I., Holst, B.S. Cardiac troponin I in healthy Norwegian Forest, Birman, and Domestic Shorthair cats and in cats with hypertrophic cardiomyopathy.

Published:

Rydén, J. (2022). A tale of two stations: A note on rejecting the Gumbel distribution. Acta Geophysica [Accepted]

Rydén, J. (2022). Statistical analysis of possible trends for extreme floods in northern Sweden. River Research and Applications. [Accepted]

Rydén, J. (2022). Tales of the Wakeby tail and alternatives when modelling extreme floods. REVSTAT - Statistical Journal [Accepted for publication]

Larsson, R., Rydén, J. (2022). Applications of discrete factor analysis. Communications in Statistics - Simulation and Computation. [Online version]

Johansson, M., Johansson, D., Ström, A., Rydén, J., Nilsson, K., Karlsson, J., Moriana, R., Langton, M. Effect of starch and fibre on faba bean protein gel characteristics (2022). Food Hydrocolloids 131, 107741

Bäcklund, F.G., Schmuck, B., Miranda, G.H.B., Greco, G., Pugno, N.M., Rydén, J., Rising, A. (2022). An image analysis-based method for prediction of recombinant protein fiber tensile strength. Materials 2022, 15(3), 708

Dzieciolowski, T., Boqvist, S. Rydén, J., Hansson, I. (2022). Cleaning and disinfection of transport crates for poultry – comparison of four treatments at slaughter plant. Poultry Science 101, 101521.

Holst, B.S., Carlin, S., Fouriez-Lablée, V., Hanås, S., Ödling, S., Langborg, L-M, Ubhayasekera, S.J.K.A., Bergquist, J., Rydén, J.,  Holmroos, E., Hansson, K. (2021). Concentrations of canine prostate specific esterase, CPSE, at baseline are associated with the relative size of the prostate at three-year follow-up. BMC Veterinary Research 17:173.

Wrang, L., Katsidoniotaki, E., Nilsson, E., Rutgersson, A., Rydén, J., Göteman, M. (2021). Comparative analysis of environmental contour approaches to estimating extreme waves for offshore installations for the Baltic Sea and the North Sea. Journal of Marine Science and Engineering 2021, 9, 96.

Moazzami, M., Bergenkvist, E., Fernström, L.-L., Rydén, J., Hansson, I. (2021). Reducing Campylobacter jejuni, Enterobacteriaceae, Escherichia coli, and total aerobic bacteria on broiler carcasses using combined ultrasound and steam. Journal of Food Protection 84, pp. 572-578.

Buntaran, H., Piepho H.-P., Schmidt, P., Rydén, J., Halling, M., Forkman, J. (2020). Cross-validation of stage-wise mixed-model analysis of Swedish variety trials with winter wheat and spring barley. Crop Science 60, pp. 2221-2240.

Rydén, J. (2020). On features of fugue subjects. A comparison of J.S. Bach and later composers. Journal of Mathematics and Music 14, pp. 1-20.

Rydén, J. (2019). A note on analysis of extreme minimum temperatures with the GAMLSS framework. Acta Geophysica 67, pp. 1599-1604. 

Nedelcu, R., Olsson, P., Nyström, I., Rydén, J., Thor, A. (2018). Accuracy and precision of 3 intraoral scanners and accuracy of conventional impressions: a novel in vivo analysis method.  Journal of Dentistry 69, pp. 110-118.

Olauson, J., Edström, P., Rydén, J. (2017). Wind turbine performance decline in Sweden. Wind Energy 20, pp. 2049-2053.

Jonsson, F., Rydén, J. (2017). Statistical studies of the Beta Gumbel distribution: estimation of extreme levels of precipitation. Statistica Applicata 29, pp. 5-27.

Rydén, J. (2017). Statistical modelling of warm-spell duration series using hurdle models. SORT - Statistics and Operations Research Transactions 41, pp. 177-188.

Olauson, J., Bergkvist, M., Rydén, J. (2017). Simulating intra-hourly wind power fluctuations on a power system level. Wind Energy 20, pp. 973-985.

Munkhammar, J., Mattsson, L., Rydén, J. (2017). Polynomial probability distribution estimation using the method of moments. PLoS ONE 12(4), e0174573.

Conference proceedings

Eriksson, W., Brodersson, A.L., Rydén, J., Persson, J., He, Y. (2021). Study of manoeuvre time of distributed MV disconnectors. The 26th International Conference and Exhibition on Electricity Distribution, pp. 6 – 10.

Reports

Bagge, H., Johansson D., Jönsson D., Rydén, J., Fransson, V. (2021). Ventilation och innemiljö i moderna småhus - mätningar och analys. Rapport TVIT—0X/7002. Avdelningen för Byggnadsfysik & Avdelningen för installationsteknik, Institutionen för bygg- och miljöteknologi, Lunds tekniska högskola, Lunds universitet.

Bagge, H., Fransson, V., Hiller, C., Johansson, D., Rydén, J. (2018). Brukarnas påverkan på energianvändning och effektbehov i NNE-byggnader. E2B2 Rapport 2018:12. (98 pp)

Miscellaneous

Rydén, J., Sundberg, R. (2021). En gigant inom sannolikhetsteorin på svensk mark: Willy Feller vid Stockholms högskola, 1934-1939. Qvintensen nr 2 2021, 4-8.

Books

Rydén, J. (2015). Stokastik för ingenjörer. (2nd ed). Studentlitteratur.

Rychlik, I., Rydén, J. (2006). Probability and Risk Analysis. An Introduction for Engineers. Springer-Verlag.


Contact

Senior Lecturer at the Department of Energy and Technology; Applied statistics and mathematics
Telephone: +4618673557
Postal address:
Inst för Energi och Teknik
Box 7032
75007 Uppsala
Visiting address: Lennart Hjelms väg 9, Uppsala