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Visar resultat 1 - 5 av 162 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Causal Combinatorics : Edges of the Characteristic Imset Polytopes

    Författare :Petter Restadh; Svante Linusson; Liam Solus; James Cussens; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

    Sammanfattning : Explaining data in a concise and efficient manner has become increasingly important in today's society. This thesis pertains to the problem of finding causal links within data, and how that can be done from a mathematical perspective. Using the framework of graphical models has several advantages, from interpretability to efficiency. LÄS MER

  3. 2. Probabilistic Sequence Models with Speech and Language Applications

    Författare :Gustav Eje Henter; W. Bastiaan Kleijn; Arne Leijon; Gernot Kubin; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Time series; acoustic modelling; speech synthesis; stochastic processes; causal-state splitting reconstruction; robust causal states; pattern discovery; Markov models; HMMs; nonparametric models; Gaussian processes; Gaussian process dynamical models; nonlinear Kalman filters; information theory; minimum entropy rate simplification; kernel density estimation; time-series bootstrap;

    Sammanfattning : Series data, sequences of measured values, are ubiquitous. Whenever observations are made along a path in space or time, a data sequence results. To comprehend nature and shape it to our will, or to make informed decisions based on what we know, we need methods to make sense of such data. LÄS MER

  4. 3. Causal after all : a model of mental causation for dualists

    Författare :Bram Vaassen; Pär Sundström; Torfinn Thomesen Huvenes; Gunnar Björnsson; David Papineau; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Mental Causation; Dualism; Non-Reductionism; Causal Exclusion; Causation; Interventionism; Negative Causation; Omissions; Neo-Russellianism; Causation and Physics;

    Sammanfattning : In this dissertation, I develop and defend a model of causation that allows for dualist mental causation in worlds where the physical domain is physically complete.In Part I, I present the dualist ontology that will be assumed throughout the thesis and identify two challenges for models of mental causation within such an ontology: the exclusion worry and the common cause worry. LÄS MER

  5. 4. On the Application of Short-term Causal Models

    Författare :Anders Baudin; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Causal (econometric) models are often employed as instruments for for-casting in short-term planning within organizations. The aim of this work is to contribute to an understanding of the short-term aspects of causal model building. LÄS MER

  7. 5. Models for Additive and Sufficient Cause Interaction

    Författare :Daniel Berglund; Timo Koski; Helga Westerlind; Ola Hössjer; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Causal Inference; Sufficient Cause; Potential Outcomes; Counterfactual; Additive Interaction; Interaction; MFPO; ICI; Logistic Regression; Linear Odds; Public Health; Interventions; Probabilistic Potential Outcome; Matematisk statistik; Mathematical Statistics;

    Sammanfattning : The aim of this thesis is to develop and explore models in, and related to, the sufficient cause framework, and additive interaction. Additive interaction is closely connected with public health interventions and can be used to make inferences about the sufficient causes in order to find the mechanisms behind an outcome, for instance a disease. LÄS MER