200 zoekresultaten voor “random wang” in de Publieke website
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Jiahui Wang -
Ying-ting WangFaculteit der Geesteswetenschappen
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Knowledge extraction in the quantum random-oracle model
The aim of this thesis is to present novel techniques for proving cryptographic schemes secure against quantum adversaries. Most results are within the context of an idealized model called the ‘quantum random-oracle model’.
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Approaching equilibrium in a dynamic network
This dissertation presents four separate chapters, all striving towards the same goal: to understand dynamic phenomena occurring in dynamic networks and to explore the emergence of equilibrium in a broad sense.
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Random walks: als een groep dronken studenten door de straten
Wiskundige Oliver Nagy kan zich nog levendig herinneren dat hij voor het eerst leerde over ‘random walks’. ‘De docent liet ons denken aan een groep dronken studenten die door de straten dwaalden. Bij elk kruispunt draaien ze één van hen in de rondte en gaan ze in de richting waar diegene tot stilstand…
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Exploration on and of Networks
This dissertation consists of two parts, with the common theme
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The parabolic Anderson model on Galton-Watson trees
The parabolic Anderson model (PAM), which is the Cauchy problem for the heat equation with random potential. The PAM is a mathematical model that describes how mass (i.e. matter or energy) flows in a medium in the presence of a field of sources and sinks.
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Joon Hyung Lee -
Spectral signatures of breaking of ensemble equivalence
This thesis explores Breaking of Ensemble Equivalence (BEE) in random graph models by examining the spectral properties of adjacency matrices. The goal is to identify spectral characteristics that differentiate random graph ensembles, enhancing the understanding of complex network structures and beh…
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Jian Wang ontvangt eerste Eugene Garfield Award
De eerste Eugene Garfield Award for Innovation In Citation Analysis is toegekend aan Jian Wang, universitair docent bij Science Based Business aan de Universiteit Leiden.
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Spectral Analysis of Inhomogeneous Networks
This thesis explores Breaking of Ensemble Equivalence (BEE) in random graph models by examining the spectral properties of adjacency matrices. The goal is to identify spectral characteristics that differentiate random graph ensembles, enhancing the understanding of complex network structures and beh…
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Duurzame Dinsdag: 4 vragen aan milieuwetenschapper Ranran Wang
Op Duurzame Dinsdag, twee weken voor Prinsjesdag, neemt het kabinet een koffer vol duurzame ideeën en initiatieven in ontvangst. Doel van de initiatiefnemers: de komende troonrede een stukje duurzamer maken. Bij het Centrum voor Milieuwetenschappen Leiden (CML) onderzoekt universitair docent Ranran…
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Beyond random and forbidden interactions : how optimizing energy gain results in morphological matching among subalpine Asteraceae and their
Plants and their pollinators form complex interaction networks. Within these networks, species differ widely in the number of species they interact with.
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Katherine Hamilton -
The stochastic geometry of non-Gaussian fields
Promotor: V. Vitelli, Co-promotor: J. Paulose
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Rationally designed peptide based functional biomaterials
Promotor: Prof.dr. J.G.E.M. Fraaije, Co-promotor: A. Kros
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Empirical signatures of universality, hierarchy and clustering in culture
In this thesis,
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hoe bezorgd moeten we zijn? Vijf vragen aan milieuwetenschapper Meiru Wang
Kunnen we onze plastic snijplank nog wel gebruiken? Er is steeds meer bezorgdheid over micro- en nanoplastics. Milieuwetenschapper Meiru Wang onderzoekt hoe deze plasticdeeltjes ons lichaam kunnen binnendringen en welke gezondheidsrisico's daarmee gepaard gaan. NEMO Kennislink stelde haar vijf vrage…
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Signatures of Majorana zero-modes in nanowires, quantum spin Hall edges, and quantum dots
Promotor: Prof.dr. C.W.J. Beenakker
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Uniform infinite and Gibbs causal triangulations
Promotor: Richard D. Gill
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CIRM interviewt Frank den Hollander
Van 2 t/m 6 juni 2014 heeft Prof. dr. Frank den Hollander 2 voordrachten verzorgd tijdens de workshop ‘Recent Models in Random Media’ op het Centre International de Rencontres Mathematiques in Marseille (CIRM), een instituut dat gedurende het hele jaar workshops voor wiskundigen organiseert.
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The integration of meta-analysis and classification & regression trees: meta-CART
In meta-analysis, heterogeneity often exists between studies. In such cases, it is essential to investigate the sources of heterogeneity and understand the relationship between effect size and study characteristics (i.e., moderators).
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Nandan Malhotra -
The parabolic Anderson model and long-range percolation
Promotor: Prof.dr. F. den Hollander, G.Maillard
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Measures and Matching for Number Systems
This thesis provides explicit expressions for the density functions of absolutely continuous invariant measures for general families of interval maps, that include random maps and infinite measure transformations, not necessarily number systems.
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Cryptography from quantum uncertainty in the presence of quantum side information
Promotor: Ronald Cramer, Co-promotor: Serge Fehr
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Dynamical Gibbs-non-Gibbs transitions and Brownian percolation
Promotor: Prof.dr. W.Th.F. den Hollander, Co-promotor: R. Fernandez.
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Counting problems for number rings
Promotor: H.W. Lenstra
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Digits & Deviations of Dynamical Systems
Dynamical systems describe the evolution of objects in a space over time and may be used to model physical phenomena. Due to this, much research is dedicated to understanding the mathematics of dynamical systems.
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Analysis and Stochastics
The research of the Applied Mathematics cluster is concerned with such diverse topics as dynamical systems, representation theory, differential equations and pattern recognition.
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Dancing with the Stars
This thesis develops a method for direction dependent calibration of the ionosphere in radio interferometric data.
- Quantum Computers
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Trends in social assistance, minimum income benefits and income polarization in an international perspective
Op woensdag 15 september promoveert Jinxian Wang op haar proefschrift: Trends in social assistance, minimum income benefits and income polarization in an international perspective.
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Essays on trends in income distribution and redistribution in affluent countries and China
De wereldwijde ongelijkheid neemt steeds meer toe. Het is belangrijk om de oorzaken te weten zodat de toenemende ongelijkheid bestreden kan worden.
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Experimentele taalkunde
Hoe verwerken we taal en spraak? Hoe voegen we de informatie op verschillende niveaus – intonatie, zinsstructuur, betekenis, toon, woorden, klanken - samen? Hoe staat de informatie op het ene niveau in verband met informatie op een ander niveau?
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Databases
Databases in het kader van het onderzoeksproject Zelfredzaamheid en sociale bescherming over de levenscyclus (aug 2017 – aug 2022).
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Publicaties
Publicaties die verschijnen in het kader van het onderzoeksproject Zelfredzaamheid en sociale bescherming over de levenscyclus.
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Betrokkenheid van studenten bij blended learning in het hoger onderwijs
Op welke manier kunnen docenten de betrokkenheid van studenten ondersteunen en vergroten in de context van blended learning?
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Risk bounds for deep learning
In this thesis, deep learning is studied from a statistical perspective. Convergence rates for the worst case risk bounds of neural network estimators are obtained in the classification, density estimation and linear regression model.
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Bayes and Networks
Promotor: A.W. van der Vaart
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Scattering and absorption in 2D optics
Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.
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LCN2 Seminars
Een maandelijks seminar over complexe netwerken, gericht op wetenschappers uit alle disciplines.
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On electronic signatures of topological superconductivity
Promotor: Prof.dr. C.W.J. Beenakker
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Growth-induced self-organization in bacterial colonies
Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.
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Steady-State Analysis of Large Scale Systems
Promotor: W.Th.F. den Hollander Co-Promotor: F.M. Spieksma
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Machine learning for radio galaxy morphology analysis
We explored how to morphologically classify well-resolved jetted radio-loud active galactic nuclei (RLAGN) in the LOw Frequency Array (LOFAR) Two-metre Sky Survey (LoTSS) using machine learning.
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Insights from scanning tunneling microscopy experiments into correlated electron systems
This thesis presents insights from our study of various correlated electron systems with a scanning tunneling microscope (STM). In ordinary metals, electron-electron interactions exist, but get substantially screened due to the sheer number of electrons.
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Algorithms for analyzing and mining real-world graphs
Promotor: Prof.dr. J.N. Kok, Co-Promotor: W.A. Kosters
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Combining classic and novel tools in the study of Historical Collections of Chinese Materia Medica in the Netherlands
Chinese materia medica (CMM), comprising a diverse array of natural substances from plants, animals, and minerals, has been integral to Traditional Chinese Medicine (TCM) throughout history. This study investigates the dynamic evolution of CMM, noting shifts in species for improved therapeutic effects…
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Model-assisted robust optimization for continuous black-box problems
Uncertainty and noise are frequently-encountered obstacles in real-world applications of numerical optimization. The practice of optimization that deals with uncertainties and noise is commonly referred to as robust optimization.