Sökning: "Matematisk Statistik"

Visar resultat 6 - 10 av 1613 uppsatser innehållade orden Matematisk Statistik.

  1. 6. Classifying Previous Covid-19 Infection : Advanced Logistic Regression Approach

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Daniel Westerholm; [2023]
    Nyckelord :Covid-19; logistic regression; clustering;

    Sammanfattning : The study aimed to developed a logistic model based on antibody proteins, vaccinations and demographic factors that predicts previous infection in Covid-19. The data set comprised of 2750 individuals from eldercare homes in Sweden, with four test dates executed between October of 2021 and August of 2022. LÄS MER

  3. 7. Failure Probability and Lifetime Estimation for Industrial Robots : A Logistic Regression and Lifetime Analysis Approach

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Erik Fahlbeck Carlsson; Martin Herbert; [2023]
    Nyckelord :Lifetime Analysis; Logistic regression; Prediction; Lifetime estimation; Industrial robots; Livslängdsanalys; Logistisk regression; Prediktion; Livslängdsestimering; Industriella robotar;

    Sammanfattning : 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. LÄS MER

  4. 8. The impact of "loose " restrictions in Sweden during the COVID-19 virus , compared to the neighbouring Scandinavian countries.

    Kandidat-uppsats, Lunds universitet/Matematisk statistik

    Författare :Anie Kdlian; [2023]
    Nyckelord :Covid-19; Corona virus pandemic; Sweden; Scandinavian countries; Coronavirus; coronaviruspandemin; skandinaviskaländer; Sverige; Data Analysis; Dataanalys; Denmark; Finland; Norway; variants; excess mortality; vaccination; waves of covid; covid cases; stringency index; first wave; second wave; third wave; fourth wave; milda restriktioner.; Mathematics and Statistics;

    Sammanfattning : Covid-19 is the first type of coronavirus that was characterized as a pandemic, year 2020. The prevention methods to minimize the spread of the corona virus did vary somehow between the countries. LÄS MER

  5. 9. Staff Shortage on SJ Trains

    Kandidat-uppsats, KTH/Matematisk statistik

    Författare :Casper Öberg; Nora Moro; [2023]
    Nyckelord :Multiple linear regression; Residual analysis; Multicollinearity; Staff shortage; Forecast; Trains; Multipel linjär regression; Residualanalys; Multikollinearitet; Personalbrist; Prognos; Tåg;

    Sammanfattning : This thesis is a case study in collaboration with SJ AB, a government owned railway companyin Sweden. The employees aboard the trains are an essential part of operating thetrains efficiently. Therefore, it is vital to forecast absences well in order to avoid havingto cancel train trips or having employees work over time. LÄS MER

  7. 10. Factors Affecting Employment Duration in the Food Retail Industry

    M1-uppsats, KTH/Matematisk statistik

    Författare :Beata Sundling; Lova Höft; [2023]
    Nyckelord :statistics; applied mathematics; regression analysis; multiple linear regression; employment duration; employment turnover rate; food retail industry; statistik; tillämpad matematik; regressionsanalys; multipel linjär regression; anställningens varaktighet; personalomsättningshastighet; dagligvaruhandeln;

    Sammanfattning : Measuring and tracking the employee turnover rate is a crucial part when evaluating a company’s performance. An important part of this is measuring the employment duration within an organization. LÄS MER