Sökning: "causal models"

Visar resultat 6 - 10 av 162 avhandlingar innehållade orden causal models.

  1. 6. An architecture for diagnostic reasoning based on causal models

    Författare :Jan Olsson; Stockholms universitet; []
    Nyckelord :Diagnostiska metoder; Dynamisk programmering; Expertsystem; Databehandling;

    Sammanfattning : This thesis proposes an architecture for diagnostic reasoning employing causal models. The architecture embodies a knowledge representation at the problem-solving layer. That is, the way a problem is solved—in this case to arrive at a diagnosis—is an integral part of the knowledge representation. LÄS MER

  3. 7. Elucidating causal relationships between energy homeostasis and cardiometabolic outcomes

    Författare :Pascal Mutie; Genetisk och molekylär epidemiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Adiposity; causal inference; Cardiometabolic disease; Mendelian randomization;

    Sammanfattning : Energy metabolism dyshomeostasis is associated with multiple health problems. For example, abundant epidemiological data show that obesity and overweight increase the risk of cardiometabolic diseases and early mortality. LÄS MER

  4. 8. Valid causal inference in high-dimensional and complex settings

    Författare :Niloofar Moosavi; Xavier de Luna; Jenny Häggström; Edward Kennedy; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Causal inference; high dimension; sensitivity analysis; variable selection; convolutional neural network; semiparametric efficiency bound; Statistics; statistik;

    Sammanfattning : The objective of this thesis is to consider some challenges that arise when conducting causal inference based on observational data. High dimensionality can occur when it is necessary to adjust for many covariates, and flexible models must be used to meet convergence assumptions. The latter may require the use of a novel machine learning estimator. LÄS MER

  5. 9. Covariate selection and propensity score specification in causal inference

    Författare :Ingeborg Waernbaum; Xavier de Luna; Elena Stanghellini; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Covariate selection; graphical models; matching; observational studies; treatment effects; unconfoundedness; Statistics; Statistik;

    Sammanfattning : This thesis makes contributions to the statistical research field of causal inference in observational studies. The results obtained are directly applicable in many scientific fields where effects of treatments are investigated and yet controlled experiments are difficult or impossible to implement. LÄS MER

  7. 10. Taking Control : The role of manipulation in theories of causation

    Författare :Henning Strandin; Peter Pagin; Richard Dawid; Michael Baumgartner; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; philosophy of science; causation; causal models; manipulationism; interventionism; Theoretical Philosophy; teoretisk filosofi;

    Sammanfattning : Causation has always been a philosophically controversial subject matter. While David Hume’s empiricist account of causation has been the dominant influence in analytic philosophy and science during modern times, a minority view has instead connected causation essentially to agency and manipulation. LÄS MER