2024 Seminar Schedule
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Wensday, November the 20h, 2024. Time: 12:30
Louise McMillan. School of Mathematics and Statistics at Victoria University of Wellington.
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Thursday, May the 16th, 2024. Time: 12:30
Albert Solà Vilalta. Departament d'Estadística i Investigació Operativa. Universitat Politècnica de Catalunya
Adventures with residuals for ordinal data
SPEAKER: Louise McMillan
LANGUAGE: Anglès
PLACE: Edifici C5, Sala C5-202, Campus Nord, UPC, Barcelona
DATE: Wensday, November the 20th, 2024 Time: 12:30
ABSTRACT: We are all familiar with using residuals to check the fit of linear regression models, but what should you use if you have ordinal data? I will discuss randomised quantile residuals, also called PIT residuals, but I will also introduce a newer type of residual known as surrogate residuals (Liu & Zhang 2018), which are particularly suited for use with ordinal data. I will also discuss my latest research which investigates whether these residuals can be used for clustering as well as for regression. The applications of this range from questionnaires and surveys to population genetics and invasive pest management. Finally, I will talk briefly about a computer game I am developing to help students revise first year statistics topics.
ABOUT THE AUTOR: Louise McMillan is a lecturer in the School of Mathematics and Statistics at Victoria University of Wellington. She initially studied mathematics, focusing on particle physics, general relativity, and complex analysis. After earning her MMath, she worked as a technical consultant, analyzing data across various industries, and later pursued a master’s in statistics in Auckland. She completed her PhD in 2019 and now researches statistical methods for animal population genetics and model-based clustering of categorical data, collaborating closely with colleagues Ivy Liu and Richard Arnold. For more information about the speaker, visit: https://people.wgtn.ac.nz/louise.mcmillan.
SPEAKER: Albert Solà Vilalta
LANGUAGE: Català
PLACE: C5 Building, Fooma C5-016, Campus Nord, UPC, Barcelona.
DATE: Thursday, May the 16th, 2024 Time: 12:30
ABSTRACT: In this talk I will present some of the research projects in which I am working, or I have been working recently. The goal is to discover sinergies with the DEIO seminar participans, as well as to promote future collaborations. I'll focus in the presentation of three different projects: unified participation of energy communities into multiple electrical markets, optimal coordination of several energy storage units and decomposition methors, and economical implication and prospect for the sustainable development in Zambia.
The title of this talk is a tribute to the seminar that takes place at the University of Edinbrugh and at Heriot-Watt University under the same name, where researchers of both universities present their research interests to first year doctoral students to help them choosing the subject of their doctoral thesis.
ABOUT THE AUTOR: Albert Solà Vilalta is a postdoctoral researcher ath the Statistics and Operations Research Department of Universitat Politècnica de Catalunya, where he will work as Lecturer starting next September. His research interests include optimization and operations research aplications in energy transition and in sustainable development, decomposition techniques in optimization, and knowledge transfer within these areas. Previously, he has been a Maxwell Institute Postdoctoral Research Fellow in Knowledge Exchange at University of Edinburgh. He holds a PhD in Optimization and Operations Research by the University of Edibnburgh, a Masters degree in Mathematics from Bonn University, and a Bachelors' degree in Mathematics from Universitat de Barcelona.
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