Press photo

Sara Sjöstedt de Luna

Deputy Dean at the Faculty of Science and Technology and board member of The Wallenberg AI, Autonomous Systems & Software Program, WASP.

Research qualifications: Docent

Contact

sara.sjostedt.de.luna@umu.se

+46 90 786 54 06

Works as

Professor at Department of Mathematics and Mathematical Statistics

MIT-huset, plan 3, Matematik och matematisk statistik, MIT.F.320 Umeå universitet, 901 87 Umeå

I am professor in Mathematical Statistics. My research focuses on functional data analysis and spatial statistics, with applications in climatology, forestry and human motor control.

I am the Deputy Dean at the Faculty of Science and Technology, and a member of the board of The Wallenberg AI, Autonomous Systems & Software Program, WASP.

fiberLD: Fiber Length Determination. R package version 0.1-8

Pya Arnqvist, Natalya; Sjöstedt de Luna, Sara; Abramowicz, Konrad

Domain selection and family-wise error rate for functional data: a unified framework

Biometrics, John Wiley & Sons 2023, Vol. 79, (2) : 1119-1132

Abramowicz, Konrad; Pini, Alessia; Schelin, Lina; et al.

Nonparametric bagging clustering methods to identify latent structures from a sequence of dependent categorical data

Computational Statistics & Data Analysis, Elsevier 2023, Vol. 177

Abramowicz, Konrad; Sjöstedt de Luna, Sara; Strandberg, Johan

Simultaneous inference for functional data in sports biomechanics: Comparing statistical parametric mapping with interval-wise testing

AStA Advances in Statistical Analysis, Springer 2023, Vol. 107 : 369-392

Pataky, Todd Colin; Abramowicz, Konrad; Liebl, Dominik; et al.

fdaMocca: Model-Based Clustering for Functional Data with Covariates. R package version 0.1-1

Pya Arnqvist, Natalya; Arnqvist, Per; Sjöstedt de Luna, Sara

fiberLD: Fiber Length Determination. R package version 0.1-7

Pya Arnqvist, Natalya; Sjöstedt de Luna, Sara; Abramowicz, Konrad

Dynamic table-visiting behavior of birds at outdoor restaurants and cafés

Ethology, John Wiley & Sons 2021, Vol. 127, (7) : 505-516

Haemig, Paul D.; Sjöstedt de Luna, Sara; Blank, Henrick

fdaMocca: Model-Based Clustering for Functional Data with Covariates. R package version 0.1-0

Pya Arnqvist, Natalya; Arnqvist, Per; Sjöstedt de Luna, Sara

Non-destructive methods for assessing tree fiber length distributions in standing trees

Sjöstedt de Luna, Sara; Abramowicz, Konrad; Pya Arnqvist, Natalya

A comparison of spatiotemporal and functional kriging approaches

Geostatistical functional data analysis, John Wiley & Sons 2021 : 375-402

Strandberg, Johan; Sjöstedt de Luna, Sara; Mateu, Jorge

Multiresolution clustering of dependent functional data with application to climate reconstruction

Stat, John Wiley & Sons 2019, Vol. 8, (1)

Abramowicz, Konrad; Schelin, Lina; Sjöstedt de Luna, Sara; et al.

fiberLD: Fiber Length Determination. R package version 0.1-6

Pya Arnqvist, Natalya; Sjöstedt de Luna, Sara; Abramowicz, Konrad

Prediction of spatial functional random processes: comparing functional and spatio-temporal kriging approaches

Stochastic environmental research and risk assessment (Print), Springer 2019, Vol. 33, (10) : 1699-1719

Strandberg, Johan; Sjöstedt de Luna, Sara; Mateu, Jorge

Nonparametric inference for functional-on-scalar linear models applied to knee kinematic hop data after injury of the anterior cruciate ligament

Scandinavian Journal of Statistics, John Wiley & Sons 2018, Vol. 45, (4) : 1036-1061

Abramowicz, Konrad; Häger, Charlotte; Pini, Alessia; et al.

Clustering misaligned dependent curves applied to varved lake sediment for climate reconstruction

Stochastic environmental research and risk assessment (Print), Springer 2017, Vol. 31, (1) : 71-85

Abramowizc, Konrad; Arnqvist, Per; Secchi, Piercesare; et al.

Fitting diameter distribution models to data from forest inventories with concentric plot design

Forest Systems, INIA 2017, Vol. 26, (2)

Nanos, Nikos; Sjöstedt de Luna, Sara

Functional clustering of varved lake sediment to reconstruct past seasonal climate

Environmental and Ecological Statistics, Springer 2016, Vol. 23, (4) : 513-529

Arnqvist, Per; Bigler, Christian; Renberg, Ingemar; et al.

Method for accurate fiber length determination from increment cores for large-scale population analyses in Norway spruce

Holzforschung, Walter de Gruyter 2016, Vol. 70, (9) : 829-838

Chen, Zhi-Qiang; Abramowicz, Konrad; Raczkowski, Rafal; et al.

Rapid adaptation of predation resistance in bacteria isolated from a seawater microcosm

Aquatic Microbial Ecology, Vol. 78, (2) : 81-92

Mathisen, Peter; Thelaus, J; Sjöstedt de Luna, Sara; et al.

DieHard: Reliable Scheduling to Survive Correlated failures in Cloud Data Centers

2016 16th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid)

Sedaghat, Mina; Wadbro, Eddie; Wilkes, John; et al.

Ecology and phylogeny of birds foraging at outdoor restaurants in Sweden

Biodiversity Data Journal, Pensoft Publishers 2015, Vol. 3

Haemig, Paul D; Sjöstedt de Luna, Sara; Blank, Henrick; et al.

Was it snowing on lake Kassjön in January 4486 BC? Functional data analysis of sediment data

The Third International Workshop on Functional and Operatorial Statistics (IWFOS 2014), Stresa, Italy, June 2014.

Abramowicz, Konrad; Arnqvist, Per; Sjöstedt de Luna, Sara; et al.

How will your workload look like in 6 years?: Analyzing Wikimedia's workload

Proceedings of the 2014 IEEE International Conference on Cloud Engineering (IC2E 2014), IEEE Computer Society 2014 : 349-354

Ali-Eldin, Ahmed; Rezaie, Ali; Mehta, Amardeep; et al.

Measuring cloud workload burstiness

2014 IEEE/ACM 7th International Conference on Utility and Cloud Computing (UCC), IEEE conference proceedings 2014 : 566-572

Ali-Eldin, Ahmed; Seleznjev, Oleg; Sjöstedt-de Luna, Sara; et al.

Association of seasonal climate variability and age-specific mortality in northern Sweden before the onset of industrialization

International Journal of Environmental Research and Public Health, Basel, Switzerland: MDPI AG 2014, Vol. 11, (7) : 6940-6954

Rocklöv, Joacim; Edvinsson, Sören; Arnqvist, Per; et al.

Spatial prediction in the presence of left-censoring

Computational Statistics & Data Analysis, Elsevier 2014, Vol. 74 : 125-141

Schelin, Lina; Sjöstedt-de Luna, Sara

Effect of resource availability on bacterial community responses to increased temperature

Aquatic Microbial Ecology, Inter-Research 2013, Vol. 68, (2) : 131-142

Degerman, Rickard; Dinasquet, Julie; Riemann, Lasse; et al.

Forecasting risk of tick-borne encephalitis (TBE): Using data from wildlife and climate to predict next year’s number of human victims

Scandinavian Journal of Infectious Diseases, Informa Healthcare 2011, Vol. 43 : 366-372

Haemig, Paul; Sjöstedt de Luna, Sara; Grafström, Anton; et al.

Inverse modeling for effective dispersal: Do we need tree size to estimate fecundity?

Ecological Modelling, Elsevier 2010, Vol. 221, (20) : 2415-2424

Nanos, Nikos; Larson, Kajsa; Milleron, Matias; et al.

Climatic influence on the inter-annual variability of late-Holocene minerogenic sediment supply in a boreal forest catchment

Earth Surface Processes and Landforms, John Wiley & Sons 2010, Vol. 35, (4) : 390-398

Petterson, Gunilla; Renberg, Ingemar; Sjöstedt-de Luna, Sara; et al.

Kriging prediction intervals based on semiparametric bootstrap

Mathematical Geosciences, Springer Verlag 2010, Vol. 42, (8) : 985-1000

Schelin, Lina; Sjöstedt-de Luna, Sara

Asymptotic properties of a stochastic EM algorithm for mixtures with censored data

Journal of Statistical Planning and Inference, Elsevier 2010, Vol. 140, (1) : 111-127

Svensson, Ingrid; Sjöstedt-de Luna, Sara

Carbon and nitrogen loss rates during aging of lake sediment: Changes over 27 years studied in varved lake sediment

Limnology and Oceanography, Waco, Tex.: American Society of Limnology and Oceanography 2008, Vol. 53, (3) : 1076-1082

Gälman, Veronika; Rydberg, Johan; Sjöstedt-de Luna, Sara; et al.

Red fox tick-borne encephalitis (TBE) in humans: can predators influence public health?

Scandinavian Journal of Infectious Diseases, Informa Healthcare 2007, Vol. 40, (6-7) : 527-532

Haemig, Paul D.; Lithner, Stefan; Sjöstedt-de Luna, Sara; et al.

Asymptotic properties of a stochastic EM algorithm for mixtures with censored data

Research Report in Mathematical Statistics, 1, 2007

Svensson, Ingrid; de Luna, Sara

A stochastic EM algorithm to estimate wood fibre length distributions from censored data

Bulletin of the International Statistical Institute, 56th session: Lissboa, August, 2007 : -

Svensson, Ingrid; de Luna, Sara

Adjusting for fibre length-biased sampling probability using increment cores from standing trees

Holzforschung, de Gruyter, ReferenceGlobal 2007, Vol. 61, (1) : 101-103

Svensson, Ingrid; Sjöstedt-de Luna, Sara; Mörling, Tommy; et al.

Estimation of wood fibre length distributions from censored data through an EM algorithm

Scandinavian Journal of Statistics, Vol. 33, (3) : 503-522

Svensson, Ingrid; Sjöstedt-de Luna, Sara; Bondesson, Lennart

Some properties of weakly approaching sequences of distributions

Statistics and Probability Letters, Vol. 75 : 119-126

Sjöstedt de Luna, Sara

Subsampling methods to estimate the variance of sample means based on nonstationary spatial data with varying expected values

Journal of the American Statistical Association, Vol. 99, (465) : 82-95

Ekström, Magnus; Sjöstedt-de Luna, Sara

A method to estimate fibre length distribution in conifers based on wood samples from increment cores

Holzforschung, Vol. 57, (3) : 248-254

Mörling, Tommy; Sjöstedt-de Luna, Sara; Svensson, Ingrid; et al.

The bootstrap and kriging prediction intervals

Scandinavian Journal of Statistics, Vol. 30 : 175-192

Sjöstedt de Luna, Sara; Young, Alastair

Resampling non-homogeneous spatial data with smoothly varying mean values

Statistics and Probability Letters, Vol. 53 : 373-379

Sjöstedt, Sara

Weakly approaching sequences of random distributions

Research report / Department of mathematical statistics, 8

Belyaev, Yuri K; Sjöstedt de-Luna, Sara

Resampling m-dependent random variables with applications to forecasting

Scandinavian Journal of Statistics, Vol. 27 : 543-562

Sjöstedt, Sara

Forecasting prices of paper products - focusing on the relation between autocorrelation structure and economic theory

Journal of Forest Economics, Vol. 5 : 23-44

Brännlund, Runar; Löfgren, Karl-Gustav; Sjöstedt, Sara

Resamplings theorems for vector valued heterogeneous random variables

Research Report, Department of Mathematical Statistics, Umeå University, 1997-9

Belyaev, Yuri K; Sjöstedt de Luna, Sara

Resampling from independent heterogeneous random variables with varying mean values

Theory of Stochastic Processes, Vol. 3, (19) : 121-131

Belyaev, Yuri; Sjöstedt, Sara

Forecasting the business-cycle without using minimum autocorrelation factors

Journal of Forecasting, Vol. 12 : 481-498

Löfgren, Karl-Gustav; Ranneby, Bo; Sjöstedt, Sara

A computational method for estimating continuum factor models

Computational statistics (Zeitschrift), Vol. 12 : 481-495

Sjöstedt, Sara; Barrlund, Anders

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