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Statistics Seminars

March 25th 11am

Marco Stefanucci

Università degli Studi di Padova

"Functional data analysis: classification with missing and compositional data"


Link to the seminar here

Link to the doodle book a slot:




April 2nd 9am

Vaidotas Characiejus

 Department of Statistics, University of California, Davis

Title: Detection of periodic signals in a sequence of functional data

Abstract: We investigate detection of periodic signals in functional time series when the length of the period is not assumed to be known. A natural test statistic for detection of periodicities is the maximum over all fundamental frequencies of the Hilbert-Schmidt norm of the periodogram operator. We show that under certain assumptions the appropriately standardised test statistic belongs to the domain of attraction of the Gumbel distribution. An empirical study is conducted to demonstrate how the theory that we develop works with simulated as well as real data. A small simulation study shows that the finite sample performance of our test is very good. We also illustrate the usefulness of our approach by examining periodicities in the air quality data from Graz, Austria and showing that our approach is not only able to detect the presence of periodic signals but it is also able to reveal the structure of periodicities in the data which can be used to accurately deseasonalize data.

The talk is based on the preprint that is available on arXiv:

Link to the semina here

Link to the doodle to book a slot:



April 8th 11am

Euloge Clovis Kenne Pagui

Dipartimento di Scienze Statistiche dell'Università degli Studi di Padova.

“Adjusted scores based inference with applications

to general regression models”

Link to the seminar here

Link to the doodle to book a slot:





Monday, March 1, 2021