Sökning: "proportional"

Visar resultat 1 - 5 av 552 avhandlingar innehållade ordet proportional.

  1. 1. Essays on the Assumption of Proportional Hazards in Cox Regression

    Författare :Inger Persson; Kenneth Carling; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Informatics; computer and systems science; Proportional hazards; Cox regression; Proportionality assumption; Informatik; data- och systemvetenskap; Informatics; computer and systems science; Informatik; data- och systemvetenskap; statistik; Statistics;

    Sammanfattning : This thesis consists of four papers about the assumption of proportional hazards for the Cox model in survival analysis. The first paper compares the hazard ratio estimated from the Cox model to an exact calculation of the geometric average of the hazard ratio when the underlying assumption of proportional hazards is false, i.e. LÄS MER

  3. 2. Statistical Methods for Computational Markets : Proportional Share Market Prediction and Admission Control

    Författare :Thomas Sandholm; Magnus Boman; Mark Baker; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Distributed Systems; Grid Computing; Performance Analysis; Workload Modeling; Middleware; Quality of Service; Prediction; Admission Control; Computer and systems science; Data- och systemvetenskap;

    Sammanfattning : We design, implement and evaluate statistical methods for managing uncertainty when consuming and provisioning resources in a federated computational market. To enable efficient allocation of resources in this environment, providers need to know consumers' risk preferences, and the expected future demand. LÄS MER

  4. 3. Strategic Voting under Coalition Governments

    Författare :Annika Fredén; Statsvetenskapliga institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; strategic; voting; coalitions; PR-systems; Statsvetenskap; Political Science; strategic; voting; coalitions; proportional representation;

    Sammanfattning : If a voter defects from preference under the consideration of policy outcomes and others' behavior, it is a "strategic vote". This thesis relates voters' strategic considerations to the government formation process: the chances for a party to gain seats, enter office, and affect overall policies. LÄS MER

  5. 4. Den godtyckliga demokratin : En studie av olika metoder att tillgodose kravet på proportionell rättvisa

    Författare :Sverker Härd; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Political science; Social choice; proportional representation; electoral systems; plurality rule; approval voting; borda count; Statsvetenskap; Political science; Statsvetenskap; statskunskap; Political Science;

    Sammanfattning : This thesis focuses the electoral systems, one of the most important instruments in theconstitutional toolbox of democratic institutions. Theories of collective decisionmaking offer several ways to reach collective decisions and there are various ways of distributing seats in parliament. LÄS MER

  7. 5. Incumbent Renomination : Accountability and Gender Bias

    Författare :Michal Grahn; Elin Bjarnegård; Johanna Kantola; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; political recruitment; party politics; proportional representation; gender; incumbency; re-selection; accountability; representation; delegation; preference voting; flexible lists; Czech Republic; Slovakia.; Statskunskap; Political Science;

    Sammanfattning : Party recruiters in proportional-representation (PR) systems are forced to do what their majoritarian counterparts are not: they need to rank-order all their candidates on the party ballots based on whom they most wish to get elected. Consequently, new candidates and incumbents alike compete for a limited number of electable ballot slots. LÄS MER