Sökning: "Bootstrap"
Visar resultat 1 - 5 av 198 uppsatser innehållade ordet Bootstrap.
1. Decision Trees for Classification of Repeated Measurements
Kandidat-uppsats, Linköpings universitet/Tillämpad matematik; Linköpings universitet/Tekniska fakultetenSammanfattning : Classification of data from repeated measurements is useful in various disciplines, for example that of medicine. This thesis explores how classification trees (CART) can be used for classifying repeated measures data. LÄS MER
2. Predictive Modeling and Statistical Inference for CTA returns : A Hidden Markov Approach with Sparse Logistic Regression
Master-uppsats, Umeå universitet/Institutionen för matematik och matematisk statistikSammanfattning : This thesis focuses on predicting trends in Commodity Trading Advisors (CTAs), also known as trend-following hedge funds. The paper applies a Hidden Markov Model (HMM) for classifying trends. Additionally, by incorporating additional features, a regularized logistic regression model is used to enhance prediction capability. LÄS MER
3. Bootstrapping methods for assessing causality in survival analysis: A case study on major adverse cardiovascular events
Master-uppsats, Lunds universitet/Matematisk statistikSammanfattning : The combination of graphical models with Aalen's additive hazards model, resulting in a model known as dynamical path analysis, permits assessing the effects of different variables on times until an event and decomposing these total effects into direct and indirect effects. This thesis proposes novel bootstrapping methods designed for left-truncated right-censored data, conditional on covariates within the framework of Aalen's additive hazards model, in order to obtain confidence intervals for the estimates. LÄS MER
4. Computational prediction of cell-cell interactions in the brain-tumour microenvironment
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Glioblastoma is the fastest-growing, and the most common malignant brain tumour in adults. It is normally treated with surgery and radio- or chemotherapy, but the approximate life expectancy is of 15 months with a high probability of cancer recurring. Therefore, there is a need for decreasing its severity. LÄS MER
5. Att dela eller inte dela? : En kvantitativ studie om sambandet mellan stress och kunskapsdelning på arbetsplatsen
Kandidat-uppsats, Högskolan Väst/Institutionen för individ och samhälleSammanfattning : Bakgrund: Arbetsrelaterad stress kan relateras till arbetstagarnas hälsa och bidrar till hög personalomsättning och ökade kostnader. Samtidigt är kunskapsdelning en betydande resurs för organisationers förmåga att ta vara på kunskap, främja medarbetarnas välmående samt behålla sin personal. LÄS MER