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Zobrazují se záznamy 641-660 z 11244
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Multi-agent trading environment for training robust reinforcement learning agents
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 13. 2. 2024This thesis presents a comprehensive study of the application of reinforcement learning to algorithmic trading. The main focus of this thesis is on the generalization properties of various reinforcement learning algorithms, ... -
Analysis of topological magnetic phases using generative machine learning models
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 8. 2. 2024 -
Polomřížky a nerozložitelné prvky
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 7. 2. 2024This thesis concerns the theory of semilattices, which are non-trivial discrete additive submonoids of Rn , which are contained in a cone. Special emphasis is on their indecomposable elements. The most important example ... -
Reprezentační neuronové sítě pro diferencovatelné renderování objemu
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 14. 2. 2024This thesis investigates the possibility of using a representation neural network as a data structure for an appearance prediction model. We present the representation network as an adaptation of the popular neural radiance ... -
Mapping of changes in optical and magneto-optical responses of Ni-Mn-Ga thin films across martensitic transformation and strain relaxation
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 8. 2. 2024This thesis studies optical and magneto-optical responses of thin epitaxial Ni-Mn- Ga films prepared by magnetron sputtering. The relative permittivity tensor spectra were computed from the spectroscopic ellipsometry data ... -
Příprava nanočástic přechodných kovů a jejich oxidů pomocí plynových agregačních zdrojů
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 8. 2. 2024This work focuses on the synthesis of nanoparticles of vanadium, titanium and their oxides. Magnetron-based gas aggregation source was used for nanoparticle preparation. Metallic nanoparticles of vanadium and titanium ... -
Representation of Gay and Bisexual Women in Video Games and Players' Attitudes: An Empirical Study
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 14. 2. 2024The aim of this empirical study was to examine how players' explicit and implicit attitudes towards content depicted in a video game influence their interaction with the game and their game experience. In order to do so, ... -
Ultrarychlá dynamika nosičů náboje ve 2D materiálech
Výsledek obhajoby: UZNÁNO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 25. 3. 2024Title: Ultrafast dynamics of charge carriers in 2D materials Author: Bc. Petr Koutenský Department: Department of Chemical Physics and Optics Supervisor: RNDr. Martin Kozák, Ph.D., Department of Chemical Physics and Optics ... -
Information Extraction from structured business documents by learning from similarity
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 21. 9. 2023The automation of document processing is gaining recent attention due to the great potential to reduce manual work through improved methods and hardware. In this area, neural networks have been applied before - even though ... -
Forward and Backward Modelling of Spectroscopic Diagnostics in Fusion Plasmas
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 11. 3. 2024Title: Forward and Backward Modelling of Spectroscopic Diagnostics in Fusion Plasmas Author: Matěj Tomeš Department: Department of Surface and Plasma Science Supervisor: Mgr. Jakub Seidl, Ph.D., Institute of Plasma Physics ... -
Object layout in a 2D room based on text description
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 5. 2. 2024This thesis presents a solution for generating structured description a 2D map of a room from a bird's eye view based on textual description in Czech. It focuses on identifying physical objects and their mutual relative ... -
Simulation of rings surrounding the progenitor of SN1987A
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 14. 2. 2024SN1987A, the first supernova visible by the naked eye since 1600s, is anomalous by existence of preexisting triple ring nebula around it. One candidate explanation of the nebula is a binary merger of SN1987A's progenitors. ... -
Kvantové jizvení v mnohočásticových systémech
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 9. 2. 2024In this work, we will introduce the concept of quantum scarring. Quantum scarring refers to the states inside the chaotic parts of spectra, which significantly differ from predictions for chaotic states. In this work, we ... -
Investigation of Ir(Ox)-Ru(Oy) thin-film catalysts for oxygen evolution reaction in proton exchange membrane water electrolyzers
Výsledek obhajoby: UZNÁNO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 24. 1. 2024The main focus of this work is the investigation of the anode catalysts for the Proton Exchange Membrane Water Electrolyzers (PEM-WEs). PEM-WEs play a pivotal role in the hydrogen economy concept as they allow water ... -
Extending Data Lineage Analysis for Python with Runtime Types
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 14. 2. 2024There is an increasing demand in the domain of data science for auto- mated tools analyzing the data lineage of software systems. In situations where general-purpose programming languages are used, Python is among the most ... -
Hawkesov proces
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 8. 2. 2024This bachelor thesis is dedicated to Hawkes process. It is divided into six chapters. Chapter one consists of an introduction into the theory of random processes and a de- scription of Poisson process, the second chapter ... -
Generování hudebních symbolů pomocí neuronových sítí
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 5. 2. 2024We create more training data for the optical music recognition (OMR) task by generating artificial images of the music symbols. We follow up Mashcima and the model J. Mayer trained on it. We take the Rebelo dataset (dataset ... -
Motional electromagnetic induction in the subsurface ocean in Europa
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 13. 9. 2023Europa is one of the Jovian icy moons with confirmed subsurface ocean. Circulation of the ocean in presence of the Jovian ambient magnetic field leads to generation of the ocean-induced magnetic field (OIMF). On Earth, the ... -
Affordable optical measurement methods for predictive rendering
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2023)Datum obhajoby: 19. 9. 2023Predictive rendering, a part of computer graphics, is based on the light transport equation and focuses on accurately predicting the appearance of objects and materials under various conditions. A variety of problems can ... -
Studium variability ionosféry
Výsledek obhajoby: UZNÁNO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2024)Datum obhajoby: 24. 1. 2024Study of ionospheric variability High variability of the ionosphere is connected to geomagnetic, solar, and neutral atmosphere wave activity. Results of scaling analysis of solar data (F10.7, SSN), geomagnetic indices (Dst, ...