Blar i Institutt for matematiske fag på forfatter "Bakke, Øyvind"
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Binary Classification, Logistic and Nominal Regression: Application to Bank Customer Loyalty Data
Uthus, Sindre Nybakk (Master thesis, 2019)Kunder er grunnlaget for enhver forretning sin suksess, og en forretning kan aldri være for takknemlig for sine trofaste kunder. I denne masteroppgaven skal vi finne signifikante forskjeller mellom ulike typer kunder. Ved ... -
Computationally efficient familywise error rate control in genome‐wide association studies using score tests for generalized linear models
Halle, Kari Krizak; Bakke, Øyvind; Djurovic, Srdjan; Bye, Anja; Ryeng, Einar; Wisløff, Ulrik; Andreassen, Ole Andreas; Langaas, Mette (Peer reviewed; Journal article, 2020)In genetic association studies, detecting phenotype–genotype association is a primary goal. We assume that the relationship between the data—phenotype, genetic markers and environmental covariates—can be modeled by a ... -
Contextual and time dependent pain in fibromyalgia: An explorative study
Fors, Egil Andreas; Landmark, Tormod; Bakke, Øyvind (Journal article; Peer reviewed, 2012)Background Little is known about contextual effects on chronic pain, and how vulnerability factors influence pain in different contexts. We wanted to examine if fibromyalgia (FM) pain varied between two social contexts, ... -
Controlling FWER
Fineid, Bård (Bachelor thesis, 2023)Bonferroni, Holm (1979), Hochberg (1988) og Hommel's (1988) metoder for multippel hypotese testing vises å ha sterk kontroll av FWER ved å kombinere Bonferroni og Simes' (1986) globale tester med Marcus et al. (1976) lukket ... -
Copula
Stenvik, Sigurd (Master thesis, 2020)Copulaen er et interessant verktøy i statistikken. Den er brukt i mange forskjellige områder fra finans til klimamodeller. En stor grunn til at copulaen er nyttig er hvordan man kan bruke copulaen til å splitte en bivariat ... -
Different Approaches for Calculating the Confidence Intervals for the Binomial Proportion
Tollefsen, Ylva Sofie (Bachelor thesis, 2023)Det finnes mange forskjellige metoder for å konstruere konfidensintervall for p i den binomiske fordelingen, der p er sannsynligheten for suksess i hvert forsøk. De kan bli delt inn i to grupper: eksakte og asymptotiske ... -
Exact inference conditioned on the selection event
Næss, Fanny Øverbø (Master thesis, 2024)Klassiske statistiske verktøy for inferens bygger på antagelsen om at modellene som tilpasses og hypotesene som testes er forhåndsspesifiserte. I praksis er det vanlig at en modell velges ved å inkludere de forklaringsvariablene ... -
Flow-times in an M/G/1 Queue under a Combined Preemptive/Non-preemptive Priority Discipline.: Scheduled Waiting Time on Single Track Railway Lines
Fatnes, Johan Narvestad (Master thesis, 2010)A priority based rule for use during the process of scheduling trains oper- ating on a single track railway line was proposed by the Norwegian railway operator and owner, Jernbaneverket. The purpose of this study is to ... -
Genetic Association in Case-Control Studies: Methods for Calculating Statistical Significance
Fineid, Anita Sklander (Master thesis, 2010)Summary -
Properties of the closed testing procedure, with applications in pairwise comparisons and model selection
Nevjen, Fredrik (Master thesis, 2019)I denne oppgaven diskuterer vi metoder for multippel hypotesetesting generelt, og fokuserer spesifikt på lukket testing, introdusert av Marcus et al. (1976). Ulike lukkede testmetoder ble brukt for å kontrollere familywise ... -
Pseudo-R2 for Generalized Linear Models - A Study of Various Pseudo-R2s for the Logit Model and the Log-Linear Poisson Model
Dising, Ingunn Elisabeth Holen (Master thesis, 2018)No equivalent measure to R2 for ordinary least square regression exist for generalized linear models to assess model fit. Therefore, this master's project addresses various pseudo-R2s for generalized linear models. Six ... -
Saddlepoint approximations to score test statistics in logistic regression for analyzing genome-wide association studies
Johnsen, Pål Vegard; Bakke, Øyvind; Bjørnland, Thea; DeWan, Andrew Thomas; Langaas, Mette (Peer reviewed; Journal article, 2023)We investigate saddlepoint approximations of tail probabilities of the score test statistic in logistic regression for genome-wide association studies. The inaccuracy in the normal approximation of the score test statistic ... -
Statistical methods for control of the familywise error rate when testing for genotype-phenotype associations
Halle, Kari Krizak (Doctoral theses at NTNU;2017:060, Doctoral thesis, 2017) -
Testing equality of the success probabilities in two independent binomial distributions
Aanes, Fredrik Lohne (Master thesis, 2016)The aim of this thesis is to compare the power of tests of equality of the success probabilities in two independent binomial distributions for different sample sizes and for different significance levels. The null hypothesis ... -
Two-sided p-values for a non-symmetric distribution of test statistics
Dåsvand, Mathias (Bachelor thesis, 2022)I denne oppgaven undersøkes ulike måter å beregne p-verdier for en tosidig hypotesetest hvor testobservatoren har en usymmetrisk sannsynlighetsfordeling. Først gis en kort introduksjon til statistiske begreper før Fishers ...