Essays about: "Cox PH model"
Found 5 essays containing the words Cox PH model.
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1. Failure Probability and Lifetime Estimation for Industrial Robots : A Logistic Regression and Lifetime Analysis Approach
University essay from Umeå universitet/Institutionen för matematik och matematisk statistikAbstract : The ability to handle and process data for information extraction is getting more and more important. Using extracted data from the business to improve productivity is seen as an important part in developing the business processes. In this thesis, industrial robots and their survival times are analyzed. READ MORE
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2. Deep Learning Approach for Time- to-Event Modeling of Credit Risk
University essay from KTH/Matematisk statistikAbstract : This thesis explores how survival analysis models performs for default risk prediction of small-to-medium sized enterprises (SME) and investigates when survival analysis models are preferable to use. This is examined by comparing the performance of three deep learning models in a survival analysis setting, a traditional survival analysis model Cox Proportional Hazards, and a traditional credit risk model logistic regression. READ MORE
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3. Variable selection for the Cox proportional hazards model : A simulation study comparing the stepwise, lasso and bootstrap approach
University essay from Umeå universitet/Institutionen för matematik och matematisk statistikAbstract : In a regression setting with a number of measured covariates not all may be relevant to the response. By reducing the numbers of covariates included in the final model we could improve its prediction accurarcy as well as making it easier to interpret. READ MORE
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4. A Comparsion of Multiple Imputation Methods for Missing Covariate Values in Recurrent Event Data
University essay from Uppsala universitet/Statistiska institutionenAbstract : Multiple imputation (MI) is a commonly used approach to impute missing data. This thesis studies missing covariates in recurrent event data, and discusses ways to include the survival outcomes in the imputation model. READ MORE
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5. New Evidence of Deliberate Fertility Control in Colonial Taiwan: Dajia 1906-1942
University essay from Lunds universitet/Ekonomisk-historiska institutionenAbstract : This paper deals with the disputable issue of the existence of Malthus’ Preventive Check in Chinese population. With the help of a newly established historical database (Demographic Database of Colonial Taiwan, DDCT), which currently including the individual level data regarding to the socio-demographic backgrounds of the registered population in fifteen townships in North and Western Taiwan, we thus are allowed to learn about the birth histories of colonial Taiwan. READ MORE
