Sökning: "Variational inference"

Visar resultat 1 - 5 av 19 uppsatser innehållade orden Variational inference.

  1. 1. Branching Out with Mixtures: Phylogenetic Inference That’s Not Afraid of a Little Uncertainty

    Master-uppsats, KTH/Matematisk statistik

    Författare :Ricky Molén; [2023]
    Nyckelord :Phylogeny; Bayesian analysis; Markov chain Monte Carlo; Variational inference; Mixture of proposal distributions; Fylogeni; Bayesiansk analys; Markov Chain Monte Carlo; Variationsinferens; Mixturer av förslagsfördelningar;

    Sammanfattning : Phylogeny, the study of evolutionary relationships among species and other taxa, plays a crucial role in understanding the history of life. Bayesian analysis using Markov chain Monte Carlo (MCMC) is a widely used approach for inferring phylogenetic trees, but it suffers from slow convergence in higher dimensions and is slow to converge. LÄS MER

  3. 2. Capturing genes with high impact based on reconstruction errors produced by variational autoencoders

    Master-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Utz Lovis Rieger; [2023]
    Nyckelord :;

    Sammanfattning : In this work we present a novel method to extract potential hub genes, transcription factors and regions with densely interconnected protein-protein-interaction networks from RNAseq data. To achieve this we deploy variational autoencoders, a generative machine learning framework, and extract the gene-wise reconstruction errors. LÄS MER

  4. 3. Causal Reinforcement Learning for Bandits with Unobserved Confounders

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Mingwei Deng; [2023]
    Nyckelord :;

    Sammanfattning : Reinforcement Learning (RL) has been recognized as a valuable tool in various fields. However, its application is limited by its reliance on extensive data through a trial-and-error approach and challenges in generalizing learned policies. LÄS MER

  5. 4. Study of Automated Step Detection Methods and Dwell Time Analysis of Single-Molecule Data : Case of Study: The Turnover of Single Fluorescent ATP on The Active Site of Myosin

    Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Lathifa Nur Ramdhania; [2022]
    Nyckelord :Single-molecule; step detection; dwell time analysis;

    Sammanfattning : Single-molecule methods were developed with the objective to obtain kinetic information of biomolecular processes from a single biomolecule. This objective can be achieved by analyzing the binding events in recordings (“trajectories”) of single molecules (e.g., using fluorescence); the so-called dwell times. LÄS MER

  7. 5. Copula Modelling of High-Dimensional Longitudinal Binary Response Data

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Nils Henningsson; [2022]
    Nyckelord :Copula; latent model; variational inference; Copula; latent modell; variational inference;

    Sammanfattning : This thesis treats the modelling of a high-dimensional data set of longitudinal binary responses. The data consists of default indicators from different nations around the world as well as some explanatory variables such as exposure to underlying assets. LÄS MER