Sökning: "Leo Zethraeus"

Hittade 2 uppsatser innehållade orden Leo Zethraeus.

1. 1. Deep Learning techniques for classification of data with missing values

   Magister-uppsats, Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

   Författare :Leo Zethraeus; [2019]
   Nyckelord :Deep Learning; VAE; Variational Autoencoder; Missing Data; Artificial Neural Networks; CNN; Multiple Imputation; Physics and Astronomy;

   Sammanfattning : Two deep learning techniques for classification on corrupt data are investigated and compared by performance. A simple imputation before classification is compared to imputation using a Variational Autoencoder (VAE). LÄS MER

3. 2. Flavour-changing neutral currents in top quark decays to Higgs bosons in a two-Higgs-doublet model

   Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

   Författare :Leo Zethraeus; [2015]
   Nyckelord :2HDM; Particle Physics; High Energy Physics; Higgs; two-Higgs-doublet model; FCNC; Physics and Astronomy;

   Sammanfattning : In this thesis top quark decays to a charm quark and a (CP even) Higgs boson are investigated in a general two-Higgs-doublet model (2HDM) allowing flavour-changing neutral currents. The theory behind 2HDMs is introduced and the specific choice of 2HDM is put to test under theoretical constraints that require the potential in the Lagrangian density of the model to satisfy vacuum stability, tree-level unitarity and perturbativity. LÄS MER