Essays about: "Multivariate statistics"
Showing result 16 - 20 of 57 essays containing the words Multivariate statistics.
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16. Testing Structure of Covariance Matrix under High-dimensional Regime
University essay from Linköpings universitet/Statistik och maskininlärningAbstract : Statisticians are interested in testing the structure of covariance matrices, especially under the high-dimensional scenario in which the dimensionality of data matrices exceeds the sample size. Many test statistics have been introduced to test whether the covariance matrix is equal to identity structure (), sphericity structure () or diagonal structure (). READ MORE
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17. Clinical Assessment of Disturbed Central Pain Modulation in Orofacial Pain
University essay from Malmö universitet/Odontologiska fakulteten (OD)Abstract : Syfte. Studiens syfte var att retrospektivt undersöka vilka kliniska variabler, bedömda under specialistundersökning av orofacial smärta, som kan förutsäga närvaro av en störd central smärtmodulering (DCPM). Material och metod. READ MORE
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18. Multivariate Risk: From Univariate to High-Dimensional Graphical Models
University essay from Lunds universitet/Statistiska institutionenAbstract : We present a comparison of different univariate and multivariate extreme value risk models. Our focus is on exploring how these can be used to model financial risk. We use simulated as well as real data and compare deterministic and cross-validation threshold selection methods for the GP model to a GEV model. READ MORE
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19. Election Forecasting in a Multiparty System
University essay from Göteborgs universitet/Institutionen för nationalekonomi med statistikAbstract : This bachelor thesis in statistics covers the subject of election forecasting in a multiparty system, using polling data, that is data collected to measure party support, and dynamic linear models (DLMs) with Kalman filtering. In terms of decision-making the outcome of an election can be thought of as an uncertainty. READ MORE
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20. Modelling user interaction at scale with deep generative methods
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Understanding how users interact with a company's service is essential for data-driven businesses that want to better cater to their users and improve their offering. By using a generative machine learning approach it is possible to model user behaviour and generate new data to simulate or recognize and explain typical usage patterns. READ MORE