Sökning: "panel data analysis"

Visar resultat 1 - 5 av 220 avhandlingar innehållade orden panel data analysis.

  1. 1. Smart Cities and Big Data Analytics : A Data-Driven Decision-Making Perspective

    Författare :Ahmed M. Shahat Osman; Ahmed Elragal; Anna Ståhlbröst; Eli Hustad; Luleå tekniska universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; smart cities; big data analytics; data-driven decision-making; Informationssystem; Information Systems;

    Sammanfattning : The phenomenon of digitalization has led to the emergence of a new term—big data. Big data refers to the vast volumes of digital data characterized by its volume, velocity, variety, veracity, and value. LÄS MER

  3. 2. Nonlinear Quantile Regression for Longitudinal Data

    Författare :Andreas Karlsson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; bootstrap; dependent errors; median regression; Monte Carlo simulation; panel data; repeated measures; Statistics; Statistik; Biostatistics; Biostatistik;

    Sammanfattning : The overall objective of the two papers in this thesis is to examine the properties of the weighted nonlinear quantile regression estimator for the analysis of longitudinal data. To this end, the question of which weights to be used, the bias of the estimator and the possibility to calculate confidence intervals has to be examined. LÄS MER

  4. 3. Towards Automatic Image Analysis for Computerised Mammography

    Författare :Christina Olsén; Frank Drewes; Fredrik Georgsson; Gunilla Borgefors; Umeå universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Computer Aided Diagnosis; Quality Assessment; Image Analysis; Ground Truth Assessment; Artificial Intelligence; Measurements; Segmentation Evaluation; Performance Measures; Pattern Recognition; Validation; Decision Support; Medicine; Computer science; Datavetenskap;

    Sammanfattning : Mammographic screening is an effective way to detect breast cancer. Early detection of breast cancer depends to a high degree on the adequacy of the mammogram from which the diagnosis is made. Today, most of the analysis of the mammogram is performed by radiologists. LÄS MER

  5. 4. Essays on Social Capital, Health and Socioeconomic Inequalities in Health A Health Economic Study

    Författare :Kamrul Islam; Socialepidemiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; economic systems; economic theory; Economics; econometrics; Samhällsvetenskaper; Social sciences; epidemiologi; Folkhälsa; epidemiology; Public health; Sweden; Panel data fixed-effect model; Decomposition analysis; Concentration index; Socioeconomic health inequality; Population aging; Survival analysis; Extended Cox model; Multilevel analysis; Unbalanced panel data; Externalities; Crime rates; Election participation rates; Community social capital; Municipality-level social capital; Systematic review; Egalitarianism; Determinants of health; Mortality; Health-related quality of life; Health; Keywords; Social capital; economic policy; Nationalekonomi; ekonometri; ekonomisk teori; ekonomiska system; ekonomisk politik;

    Sammanfattning : The thesis comprises four independent research papers and a summary that focus on two related dimensions. The first dimension focuses on the understanding of the production of health. Particularly, the question is asked whether community's stock of social capital influence individual's health. LÄS MER

  7. 5. Differences and similarities in work absence behavior : - empirical evidence from micro data

    Författare :Maria Nilsson; Mårten Palme; Jan Erik Askildsen; Växjö universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; moral hazard; gender difference; immigrants; panel data; count data models; fixed effects; finite mixture models; Economics; Nationalekonomi; Economics; Nationalekonomi;

    Sammanfattning : This thesis consists of three self-contained essays about absenteeism. Essay I analyzes if the design of the insurance system affects work absence, i.e. the classic insurance problem of moral hazard. LÄS MER