Essays about: "matematisk statistik"

Showing result 16 - 20 of 1299 essays containing the words matematisk statistik.

1. 16. Modelling Factors Affecting Academic Performance in Swedish Schools with Multiple Linear Regression

   University essay from KTH/Matematisk statistik

   Author : Johanna Breivold; [2023]
   Keywords : Academic performance; average qualification point; foreign background; educational level; teacher s degree; students per teacher; staffing ratio; organizer; multiple linear regression; Studieresultat; genomsnittligt meritvärde; utländsk bakgrund; utbildningsnivå; lärarexamen; lärartäthet; huvudman; multipel linjär regression;

   Abstract : This bachelor thesis examines factors affecting the academic performance in Swedish schools. Specifically, the average qualification point among ninth grade students in schools in Stockholm municipality during the academic year 2021-2022 are studied. READ MORE

3. 17. An Algorithm for Sampling from Bandlimited Circular Probability Distributions

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Mattias Olofsson; [2023]
   Keywords : Matematisk Statistik;

   Abstract : In this Bachelor thesis, a novel algorithm for sampling from bandlimited circular probability distributions is presented. The algorithm leverages results from Fourier analysis concerning the Fejér kernel to simulate data with some desired probability distribution, realized as a sum of data sampled from a discrete distribution and a small continuous perturbation sampled from the Fejér kernel distribution. READ MORE

4. 18. Robust Portfolio Optimization with Correlation Penalties

   University essay from KTH/Matematisk statistik

   Author : Pelle Nydahl; [2023]
   Keywords : Portfolio Optimization; Portfolio Allocation; Robust Optimization; Correlation; Risk Factor Model; EMA Filtering; Weighted Linear Regression; Portföljoptimering; Portföljallokering; Robust optimering; Korrelation; Riskfaktor-modell; EMA-filtrering; Viktad linjär regression;

   Abstract : Robust portfolio optimization models attempt to address the standard optimization method's high sensitivity to noise in the parameter estimates, by taking an investor's uncertainty about the estimates into account when finding an optimal portfolio. In this thesis, we study robust variations of an extension of the mean-variance problem, where an additional term penalizing the portfolio's correlation with an exogenous return sequence is included in the objective. READ MORE

5. 19. Robust Statistical Jump Models with Feature Selection

   University essay from Lunds universitet/Matematisk statistik

   Author : Jonatan Persson; [2023]
   Keywords : Clustering; Jump; Feature selection; Robust; Mathematics and Statistics;

   Abstract : A large area in statistics and machine learning is cluster analysis. This field of research concerns the design of algorithms that allow computers to automatically categorize a set of observations into different groups in a reasonable way, without any prior information about which observations belongs to which group. READ MORE

6. 20. Assessment and evaluation of heterogeneity in data from immune infiltration spatial niches in lung cancer

   University essay from Lunds universitet/Matematisk statistik

   Author : Mahta Keivani Najafabadi; [2023]
   Keywords : Mathematics and Statistics;

   Abstract : The protein biomarker expressions in three types of sampled immune INFILTration spatial niches in lung cancer tissue were measured using the new technology Digital Spatial Profiler (DSP). The three types of immune INFILTration that were observed in lung tumors were STROMA identified as immune cells separate from tumor cells, Tertiary lymphoid structures (TLS) identified as dense structures of organized immune cells and finally Infiltraterate where immune cells dispersed among and in direct contact with tumor cells (INFILT). READ MORE