487 search results for “random graphs” in the Public website

Wireless RandomAccess Networks and Spectra of Random Graph
This thesis is divided into two parts. In Part I we study metastability properties of queuebased randomaccess protocols for wireless networks. The network is modeledas a bipartite graph whose edges represent interference constraints. In Part II we study spectra of inhomogeneous ErdősRényi random…

LCN2 Seminar: Sparse random graphs with many triangles.
Lecture

Exploration on and of Networks
This dissertation consists of two parts, with the common theme

Random walks in dynamic random environments
Promotor: W.Th.F. den Hollander

Random walks and the contact process
Promotores: W. Th. F. den Hollander, M.O. Heydenreich

Algorithms for analyzing and mining realworld graphs
Promotor: Prof.dr. J.N. Kok, CoPromotor: W.A. Kosters

Some case studies of random walks in dynamic random environments
Promotor: Promotor: W.Th.F. den Hollander, Copromotor: V. Sidoravicius.

Using factchecks to combat misleading graphs
How can misleading graphs be effectively corrected, specifically for people with low graph literacy?

Graphing algebraic formulas
Many students have difficulties to read and give meaning to algebraic formulas. In this study it is explored whether graphing formulas with pen and paper will improve students’ability to reason with algebraic formulas.

LCN2 Seminar: Spectra of random graphs: a random matrix perspective
Lecture

On the randommatrix theory of Majorana fermions in topological superconductors
The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

Isogeny graphs, modular polynomials, and applications
This thesis has three main parts. The first part gives an algorithm to compute Hilbert modular polynomials for ordinary abelian varieties with maximal real multiplication. Hilbert modular polynomials of a given level b give a way of finding all of the abelian varieties that are bisogeneous to any given…

Wireless RandomAccess Networks and Spectra of Random Graph
PhD Defence
 Academic Writing Plus: Tables, Charts & Graphs

Guide to prospective students
If you are intrested instudying stochastics, the following information will help you to choose the right path

Research
Research in the PODgroup addresses all features of random phenomena – modelling, structuring, analysis, control, optimisation – and covers both fundamental and applied aspects.

LCN2 Seminar: Breaking of ensemble equivalence for dense random graphs under a single constraint
Lecture

About LCN2
Mission statement

Graphing formulas by hand to promote symbol sense: Becoming friends with algebraic formulas
In this research we have studied how teaching graphing formulas by hand (i.e. sketching a graph of a formula) could promote grade 11 and 12students’ symbol sense.

LCN2 Seminar: Dynamic random graph model for polymerisation in a confined environment
Lecture

LCN2 Seminars
A monthly seminar on complex networks, aimed at scientists from all disciplines.

Web Privacy Measurement in RealTime Bidding Systems, A Graph Based Approach to RTB system classification
On 29 January 2019, Robbert van Eijk defended his thesis 'Web Privacy Measurement in RealTime Bidding Systems, A Graph Based Approach to RTB system classification'. The doctoral research was supervised by Prof. dr. H.J. van den Herik.

Random walks: wandering the streets like a group of drunk students
Mathematician Oliver Nagy still vividly remembers the first time he learned about a random walk. ‘The lecturer told us to imagine a company of drunken students who wander in the streets. At each intersection, they would spin one of them around and all would go in the direction where he or she came to…

with attention only for people with HIV and depressive symptoms: A randomized controlled trial
We found that, next to the effectiveness of the intervention, it’s also very likely that the intervention is costeffective compared to attention only.

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.

Events
LIACS organizes different lectures and colloquia, like the Florence Nightingale Colloquium, LCN2 Seminars, the Ada Lovelace Distinguished Lecture Series and the OTICS Colloquium.

Diego Garlaschelli Group (Econophysics and Network Theory)
We study the structure, dynamics and physics of complex networks emerging from the intricate interconnectedness of the constituents of large systems.

The stochastic geometry of nonGaussian fields
Promotor: V. Vitelli, Copromotor: J. Paulose

Seminars
LCN2 organizes seminars on the last Friday of each month.

LCN2 Seminar: Random walks on dynamic configuration model
Lecture

Dual Complexes of Semistable Varieties
This thesis is comprised of three chapters covering the theme of studying semistable varieties by looking at their dual combinatorial objects.

Nina Komrij
Faculteit der Sociale Wetenschappen

LCN2 Seminar: Learning in Social Networks with Random Communication
Lecture

NETWORKS consortium receives COFUND grant from European Commission
The Gravitation programme NETWORKS has been awarded a COFUND grant of 3 million euros. Half of this comes from the European Commission's Marie SkłodowskaCurie Actions programme, with industry partners paying the other half. Of the fourteen new PhD candidates, two will join Frank den Hollander's research…

Rationally designed peptide based functional biomaterials
Promoter: J.G.E.M.Fraaije, Copromotor: A. Kros

Garnet Akeyr
Science

Frank den Hollander interviewed by CIRM
From 2 to 6 June 2014, Prof. dr. Frank den Hollander has provided 2 lectures during the workshop ‘Recent Models in Random Media’ at the Centre International de Rencontres Mathematique in Marseille (CIRM). This center facilitates workshops for mathematicians throughout the year.

Signatures of Majorana zeromodes in nanowires, quantum spin Hall edges, and quantum dots
Promotor: C.W.J. Beenakker, Copromotor: M.T. Wimmer

Empirical signatures of universality, hierarchy and clustering in culture
In this thesis,

LCN2 Seminar: Queuebased activation protocols in randomaccess wireless networks
Lecture

Uniform infinite and Gibbs causal triangulations
Promotor: Richard D. Gill

Data mining and algorithm development
Due to the modern techniques of combinatorial chemistry and highthroughput screening, data on the biological activity of many millions of compounds is known. However, it is still very difficult to transfer this data into knowledge: if we know that compounds A and B bind to a certain protein with high…

Fall of Misinformation Series: Ionica Smeets
Misinformation spreads easily and fast. It gets presented as news, whereas actual news gets dismissed as fake. Conflicting streams of information allows all sides to cherrypick whatever is most comfortable, boosting degrees of confidence and confusing the deliberation of both politicians and voters.…

Scientific computing for Drug Discovery in Python and/or R
Data analysis with Python and R are rapidly becoming essential skills for modern scientists. Therefore, we are offering courses to develop your scientific computing skills. Those courses are optional for LACDR PhD candidates.

Education
The information below concerns courses that our group teaches in Leiden.

Cool little kids
Effectiveness of an early intervention program for anxietyprone toddlers in the Netherlands

VARIS
When does it rain when air is oversaturated with moisture? How does an infection spread among the population? The problems that mathematician Professor Frank den Hollander tries to solve come from physics, chemistry and biology.

Travelling patterns on Discrete Media
This thesis describes how complex and realworld relevant analytical solutions can be found starting from a simple Nagumo problem posed on one or twodimensional lattices.

The integration of metaanalysis and classification & regression trees: metaCART
In metaanalysis, 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).

Complex Patterns in Streams
The goal of the project is the development of stream mining techniques for complex patterns such as graphs. We will try to extend the existing stateoftheart techniques into two, orthogonal directions: on the one hand, the mining of more complex patterns in streams, such as sequential patterns and…