Matematicko-fyzikální fakulta
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Habilitační práce [129]
Habilitations -
Kvalifikační práce [12123]
Theses -
Kvalifikační práce obhajované před rokem 2006 [14]
Theses defended before year 2006
Poslední příspěvky
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Nonlocal Dynamics for a Discrete State in Coulomb Continuum
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This thesis develops numerical methods for constructing the nonlocal resonance model (NLRM) and solving the resulting nuclear dynamics of low-energy electron collisions with diatomic molecules and molecular cations within ... -
Testing for hyperuniformity
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026Hyperuniform systems have long been popular within materials science and the clas- sical physics of particle systems; in this context. For example, perfect crystals or qua- sicrystals are hyperuniform. In recent years, the ... -
Optimizing Propaganda using a Graphical Model and Mathematical Programming
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026Tato práce zavádí pojem Cognitive Bribery jako formální rámec pro mo- delování propagandy jakožto problému minimální perturbace parametrů ko- gnitivního modelu tak, aby cílový výsledek překročil zadaný práh. Tento obecný ... -
Defining robot trajectory using augmented reality
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This work investigates whether collaborative-robot tasks that change frequently can be authored more directly by specifying spatial intent in the real workspace instead of editing low-level robot programs through a teach ... -
Measuring Semantic Consistency in Consistency Models
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026Current evaluations of text-to-image generative models focus on percep- tual quality while overlooking semantic consistency, how accurately a generated image matches its input prompt. This thesis introduces the Prompt-Aligned ... -
Bayesian Stacking of Predictive Distributions
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This thesis develops a structured introduction to Bayesian statistical modelling from a probabilistic foundation, including a consistent notation and derivation of core Bayesian concepts. Building on this framework, Bayesian ... -
Charged Black Holes beyond Einstein-Maxwell Theory
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026Charged black holes are an inevitable consequence of combining General Relativity and electromagnetism. The electromagnetic field profoundly affects the spacetime geom- etry with far-reaching theoretical and observational ... -
Score-based stochastic smoothing
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This thesis develops methods for stochastic smoothing in signal and observation sys- tems with nonlinear dynamics. It builds on score-based diffusion models, first introduced in 2021, which have since become the standard ... -
Retrospektivní analýza pandemie COVID v ČR
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026In this thesis, we conduct a retrospective analysis of the COVID-19 pandemic in the Czech Republic in 2020 and 2021 using compartmental models and dynamic program- ming. The first major contribution is the construction and ... -
LLM-Based Synthetic Data Generation for NLP Metric Validation
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026Validating evaluation metrics for NLG typically relies on expensive and time-consuming human annotations, which predominantly exist for English datasets. We propose Meta-Judge, a scalable framework that uses LLMs to generate ... -
Specifikační testy v ACD modelech časových řad
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This thesis deals with specification tests in ACD (Autoregressive Conditional Dura- tion) models for time series. The first part focuses on the definition of the ACD model, parameter estimation using the maximum likelihood ... -
Initialization in neural networks
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This thesis examines how weight initialization affects the training of deep neural net- works, specifically targeting the ResNet architecture, which utilizes full pre-activation residual blocks and ReLU activations. We ... -
Přizpůsobení Curling sondy pro vyšší koncentrace plazmatu
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026The subject of this thesis is the improvement of electron concentration mea- surements using a Curling probe in a system with a hot cathode and an argon atmosphere. For this purpose, new Curling probes with a shorter spiral ... -
Finite element method with degenerate elements
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026The classical finite element method (FEM) is known to lose its convergence properties on meshes that contain degenerate (near zero-measure) elements. To address this issue, a recently developed Tempered FEM method (TFEM) ... -
AI-assisted creation of knowledge maps
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026Search engines and LLM chatbots retrieve and summarise information well, but nei- ther helps a learner see how a topic is shaped or how its parts relate. MapTopics is a web application built to bring those two worlds closer ... -
Molekulární symetrie a křížení rezonančních stavů.
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026In this work, we present an analytical study of a minimal molecular C2 model coupled to a continuum of states. Based on symmetry, we derive an effective Hamiltonian whose dependence on vibrational coordinates and energy ... -
Testy dobré shody pro modely časových řad založené na periodogramu
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This diploma thesis deals with diagnostic methods for ARMA time series models that are based on the cumulative periodogram. The core of this approach lies in analyzing the spectral distribution function of the estimated ... -
Logo Detection in Video
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026A significant portion of the sports industry is funded by companies in exchange for brand promotion, primarily through on-screen logo visibility. These companies require reliable verification that the promised exposure is ... -
Generative agents for simulation of social behaviour
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026Simulating believable human behavior has been a long-standing chal- lenge in artificial intelligence. Large language models (LLMs) have shown emergent capabilities in approximating human behavior, making LLM-based generative ... -
Resonant particle production of an evolving oscillating scalar field
Výsledek obhajoby: OBHÁJENO(Univerzita Karlova, Matematicko-fyzikální fakulta, 2026)Datum obhajoby: 8. 6. 2026This thesis studies scalar-field production through parametric resonance dur- ing preheating, when the oscillating inflaton background has a slowly varying amplitude and frequency. The Fourier modes of the scalar field are ...
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