Hamilton Institute Seminars (HD / large)

The Hamilton Institute is a multi-disciplinary research centre established at the National University of Ireland, Maynooth in November 2001. The Institute seeks to provide a bridge between mathematics and its applications in ICT and biology.In this podcast feed, we make accessible some of the best seminars held by members of the Hamilton Institute, visitors or guest speakers.Futhermore, it will also contain the lectures give as part of the 'Network Mathematics Graduate Programme'.

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The Hamilton Institute is a multi-disciplinary research centre established at the National University of Ireland, Maynooth in November 2001. The Institute seeks to provide a bridge between mathematics and its applications in ICT and biology. In this podcast feed, we make accessible some of the best seminars held by members of the Hamilton Institute, visitors or guest speakers. Futhermore, it will also contain the lectures give as part of the 'Network Mathematics Graduate Programme'.
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last modified
2018-10-31 16:54
last episode published
2013-08-06 23:01
publication frequency
30.81 days
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Education Science & Medicine Natural Sciences Higher Education



Date Thumb Title & Description Contributors

Periodicity of Matrix Powers in Max Algebra

Speaker: Dr. S. Sergeev Abstract: It is well known that the sequence of max-algebraic powers of irreducible nonnegative matrices is ultimately periodic. We express this periodicity in terms of CSR-representations and give new bounds on the transien...
Dr. S. Sergeev author

Very High Speed Networking in VMs and Bare Metal

Speaker: Prof. L. Rizzo Abstract: In this talk I will give a survey of solutions and tools that we have developed in recent years to achieve extremely high packet processing rates in commodity operating systems, running on bare metal and on virtual...
Prof. L. Rizzo author

ROMA: Random Overlook Mastering ATFM

Speaker: C. Lancia Abstract: Consider the arrival process defined by t_i=i + \xi_i, where \xi_i are i.i.d random variables. First introduced in the 50's, this arrival process is of remarkable importance in Air Traffic Flow Management and other tran...
C. Lancia author

Machine-to-Machine in Smart Cities& Smart Grids Vision, Technology& Applications

Speaker: Dr. M. Dohler Abstract: The unprecedented communication paradigm of machine-to-machine (M2M), facilitating 24/7 ultra-reliable connectivity between a prior unseen number of automated devices, is currently gripping both industrial as well a...
Dr. M. Dohler author

State Constrained Optimal Control

Speaker: Prof. R. Vinter Abstract: Estimates on the distance of a nominal state trajectory from the set of state trajectories that are confined to a closed set have an important unifying role in optimal control theory. They can be used to establish...
Prof. R. Vinter author

Effective Information Delivery Through Opportunistic Replication in Wireless Networks

Speaker: Prof. L. Tassiulas Abstract: Increased replication of information is observed in modern wireless networks either in pre-planned content replication schemes or through opportunistic caching in intermediate relay nodes as the information flo...
Prof. L. Tassiulas author

Dynamics of Some Cholera Models

Speaker: Prof. P. van den Driessche Abstract: The World Health Organization estimates that there are 3 to 5 million cholera cases per year with 100 thousand deaths spread over 40 to 50 countries. For example, there has been a recent cholera outbrea...
Prof. P. van den Driessche author

Distributed Opportunistic Scheduling: A Control Theoretic Approach

Speaker: Prof. A. Banchs Abstract: Distributed Opportunistic Scheduling (DOS) techniques have been recently proposed to improve the throughput performance of wireless networks. With DOS, each station contends for the channel with a certain access p...
Prof. A. Banchs author

Large-scale urban vehicular networks: mobility and connectivity

Speaker: Dr. M. Fiore Abstract: Vehicular networks are large scale communication systems that exploit wireless technologies to interconnect moving cars. Vehicular networks are envisioned to provide drivers with real time information on potential da...
Dr. M. Fiore author

Learning Cell Cycle Variability at theLevel of each phase

Speaker: Dr. T. Weber Abstract: Inter-cellular variability in the duration of the cell cycle is a well documented phenomena which has been integrated into mathematical models of cell proliferation since the 70’s. Here I present a minimalist stochas...
Dr. T. Weber author

EPT functions: Non-negativity analysis, Levy processes and Financial applications

Speaker: Prof. B. Hanzon Abstract: Exponential Polynomial Trigonometric (EPT) functions are being considered as probability density functions. A specific matrix-vector representation is proposed for doing calculations with these functions. We inves...
Prof. B. Hanzon author

Playing with Standards: the IEEE 802.11 case

Speaker: Dr. F. Gringoli Abstract: Experimenting in the field is a key activity for the evolution of the modern Internet: this is especially true for radio access protocols like IEEE 802.11 that are usually affected by unpredictable issues due to n...
Dr. F. Gringoli author

In Search of Optimality: Network Coding for Wireless Networks

Speaker: Dr. M. A. Chaudry Abstract: Network coding has gained significant interest from the research community since the first paper by Alshwede et al., in 2000. Network coding techniques can significantly increase the overall throughput of wirele...
Dr. M. A. Chaudry author

On Continuous Counting and Learningin a Distributed System

Speaker: Dr. B. Radunović Abstract: Consider a distributed system that consists of a coordinator node connected to multiple sites. Items from a data stream arrive to the system one by one, and are arbitrarily distributed to different sites. The goa...
Dr. B. Radunović author

Multi-channel MAC Protocols for Wireless Sensor Networks

Speaker: Dr. C. Cano Abstract: Wireless Sensor Networks (WSNs) are networks formed byhighly constrained devices that communicate measured environmentaldata using low-power wireless transmissions. The increase of spectrumutilization in non-licensed ...
Dr. C. Cano author

Networking Infrastructure and Data Management for Cyber-Physical Systems

Speaker: S. Han Abstract: A cyber-physical system (CPS) is a system featuring a tight combination of, and coordination between, the system's computational and physical elements. A large-scale CPS usually consists of several subsystems which are for...
S. Han author

Cracking the Cutoff Window

Speaker: C. Lancia Abstract: The cutoff phenomenon is the abrupt convergence to stationarity of a Markov chain. It is characterized by a narrow window centered around a cutoff-time in which the distance from stationarity suddenly drops from 1 to 0....
C. Lancia author

Reaching Consensus about Gossip

Speaker: Prof. P. Thiran Abstract: An increasingly larger number of applications require networks to perform decentralized computations over distributed data. A representative problem of these “in-network processing” tasks is the distributed comput...
Prof. P. Thiran author

The Role of Kemeny's Constant in Properties of Markov Chains

Speaker: Prof. J. J. Hunter Abstract: In a finite m-state irreducible Markov chain with stationary probabilities {\pi_i} and mean first passage times m_{ij} (mean recurrence time when i=j) it was first shown, by Kemeny and Snell, that \sum_{j=1}^{m...
Prof. J. J. Hunter author

Experiences in Industrial Mathematics in Ireland

Speaker: Prof. S. O'Brien Abstract: In the context of the Macsi industrial mathematics group, we look at the types of problems which have arisen from industrial collaboration and examine a couple of these in detail.In particular, we look at a mathe...
Prof. S. O'Brien author

Geographically weighted regression: modelling spatial heterogeneity

Speaker: Martin Charlton Abstract: Geographically Weighted Regression is a technique for exploratory spatial data analysis. In "normal" regression with data for spatial objects we assume that the relationship we are modelling is uniform across the ...
Martin Charlton author

Cascade Dynamics on Complex Networks

Speaker: Dr. A. Hackett Abstract: A cascade or avalanche is observed when interactions between the components of a system allow an initially localized effect to propagate globally. For example, the malfunction of technological systems like email ne...
Dr. A. Hackett author

Exploit prediction to handle mobility in wireless ad hoc networks

Speaker: Dr. X. Li Abstract: Node mobility is often a hindering factor of the networking process in wireless ad hoc networks. In this talk, we will introduce our two recent works that address this problem through a prediction approach.The first wor...
Dr. X. Li author

Juggler's Exclusion Process

Speaker: Prof. L. Leskelä Abstract: Juggler's exclusion process describes a system of particles on the positive integers where particles drift down to zero at unit speed. After a particle hits zero, it jumps into a randomly chosen unoccupied site. ...
Prof. L. Leskelä author

Exploratory analysis of human mobility and activities from geo-referenced communication data streams

Speaker: Dr. A. Pozdnoukhov Abstract: Communication technologies with their very high penetration into society can serve as particularly rich source of information to explore and model evolution of complex social systems.This talk presents a framew...
Dr. A. Pozdnoukhov author

Diagonal Stability and Completely Positive Matrices

Speaker: Prof. A. Berman Abstract: In this paper a general notion of common diagonal Lyapunov matrix is formulated for a collection of n×n matrices A_1,...,A_s and polyhedral cones k_1,...,k_s in R^n. Necessary and sufficient conditions are derived...
Prof. A. Berman author

Load balancing for Markov chains

Speaker: Prof. S. Kirkland Abstract: A square matrix T is called stochastic if its entries are nonnegative and its row sums are all equal to one. Stochastic matrices are the centrepiece of the theory of discrete-time, time homogenous Markov chains ...
Prof. S. Kirkland author

The Symmetric Nonnegative Inverse Eigenvalue Problem

Speaker: Dr. H. Šmigoc Abstract: The question of which lists of complex numbers are the spectra of nonnegative matrices, is known as the nonnegative inverse eigenvalue problem, and the same question posed for symmetric nonnegative matrices is calle...
Dr. H. Šmigoc author

On the Block Numerical Range of Operators in Banach Spaces

Speaker: Prof. K.-H. Förster Abstract: In this talk following topics will be discussed:- The Numerical Range of Operators in Banach Spaces.- The Block Numerical Range of Operators.- The Block Numerical Range of Operator Functions.- The Block Numeri...
Prof. K.-H. Förster author

Essentially Negative News About Positive Systems

Speaker: Prof. P. Colaneri Abstract: In this paper the discretisation of switched and non-switched linear positive systems using Padé approximations is considered. Padé approximations to the matrix exponential are sometimes used by control engineer...
Prof. P. Colaneri author

Some relationships between formal power series and nonnegative matrices

Speaker: Prof. T. Laffey Abstract: Let σ = (λ_1,...,λ_n) be a list of complex numbers which we aim to realize constructively as the spectrum of a nonnegative matrix. Most constructions available in the literature rely on building matrices related t...
Prof. T. Laffey author

Maximal exponents of polyhedral cones

Speaker: Prof. R. Loewy Abstract: Let K be a proper (i.e., closed, pointed, full and convex) cone in R^n. We consider A∈R^(n×n) which is K-primitive, that is, there exists a positive integer l such that A^l.x ∈ int K for every 0≠x∈K. The smallest s...
Prof. R. Loewy author

From nonnegative matrices to nonnegative tensors

Speaker: Prof. S. Friedland Abstract: In this talk we will discuss a number of generalizations of results on nonnegative matrices to nonnegative tensors as: irreducibility and weak irreducibility, Perron-Frobenius theorem, Collatz-Wielandt characte...
Prof. S. Friedland author

Fundamental delay bounds in peer-to-peer chunk-based real-time streaming systems

Speaker: Prof. G. Bianchi Abstract: In this talk we address the following question: What is the minimum theoretical delay performance achievable by an overlay peer-to-peer streaming system where the streamed content is subdivided into chunks? We f...
Prof. G. Bianchi author

Robot Navigation and Mapping

Speaker: Prof. J. Leonard Abstract: This talk will have two parts. In part one, we will review recent progress in mobile robotics, focusing on the problems of simultaneous mapping and localization (SLAM) and cooperative navigation of mobile sensor ...
Prof. J. Leonard author

Humanoid Robot Soccer 101

Speaker: Dr. T. Röfer Abstract: Building the software for a competitive robot soccer team is a challenging task. The robots have to perceive their environment, estimate where they and the other relevant object are located on the field, decide what ...
Dr. T. Röfer author

An Introduction to R

Speaker: C. Walz Abstract: A first introduction to R.
C. Walz author

Advances in non-linear distortion methods of synthesis and processing of musical signals

Speaker: Dr. V. Lazzarini Abstract: Non-linear distortion methods form a set of elegant and computationally economic methods of synthesis and processing for musical applications. Among these, we find the famous Frequency Modulation synthesis, as d...
Dr. V. Lazzarini author

Lifecycle of HIV-infected cells

Speaker: Dr. J. Petravic Abstract: In HIV dynamics models, it is commonly assumed that HIV-infected cells all have the same viral production and death rates. We explored the dynamics of viral production and death in vitro to determine the validity...
Dr. J. Petravic author

Programming stem cells: modeling stem cell dynamics and organ development

Speaker: Dr. Y. Setty Abstract: In recent years, we have used software engineering tools to develop reactive models to simulate and analyze the development of organs. The modeled systems embody highly complex and dynamic processes, by which a set o...
Dr. Y. Setty author

Vehicle-2-x Communication

Speaker: Dr. I. Radusch Abstract: Future drivers and vehicles will benefit from upcoming integrated communication devices three-fold. Communication will increase safety and efficiency in traffic as well as making driving more enjoyable. Upcoming ...
Dr. I. Radusch author

Event-Driven Automation in Laser-Scanning Microscopy Applied to Live Cell Imaging

Speaker: Dr. J. Wenus Abstract: Microscopy of living cells is heavily employed in biomedicine to understand the mechanisms of disease progression and to develop novel pharmaceuticals. In particular, confocal microscopy which relies on laser-based e...
Dr. J. Wenus author

Spectrum Sharing in Cognitive Radio with Quantized Channel Information

Speaker: Dr. S. Dey Abstract: In this talk, we consider a wideband spectrum sharing system where a secondary user can share a number of orthogonal frequency bands each licensed to a distinct primary user. We address the problem of optimum secondary...
Dr. S. Dey author

Large deviation theory and its applications in statistical mechanics

Speaker: Dr. H. Touchette Abstract: The theory of large deviations, initiated by Cramer in the 1930s and later developed by Donsker and Varadhan in the 1970s, is an active field of probability theory that finds applications in many subjects, includ...
Dr. H. Touchette author

Asymptotic Stability Region of Slotted Aloha

Speaker: Dr. C. Bordenave Abstract: Consider N queues with non-homogeneous packet arrivals. The queues share a common communication channel. At the beginning of each timeslot, if queue i has a packet, it attempts to access the channel with probab...
Dr. C. Bordenave author

On the stabilization of discrete-time positive switched systems by means of Lyapunov based switching strategies

Speaker: Prof. M. E. Valcher Abstract: Abstract: Positive switched systems typically arise to cope with two distinct modeling needs. On the one hand, switching among different models mathematically formalizes the fact that the system laws change un...
Prof. M. E. Valcher author

A Phylogenetic Hidden Markov Model for Immune Epitope Discovery

Speaker: Prof. C. Seoighe Abstract: We describe a phylogenetic model of protein-coding sequence evolution that includes environmental variables. We apply it to a set of viral sequences from individuals with known human leukocyte antigen (HLA) genot...
Prof. C. Seoighe author

Stochastic Modelling of T Cell Repertoire Diversity

Speaker: Dr. C. Molina-París Abstract: T cells are specialised white blood cells that protect the body from infection and are also able to kill infected cells. T cells are characterised by the presence of a special receptor on their cell surface ca...
Dr. C. Molina-París author

The Brain is an Embedding Machine

Speaker: Dr. R. Clement Abstract: Neural responses are often generated by the physical movement of an object or a limb. Each such set of responses corresponds a point on a smooth geometrical surface. To be able to manipulate such a representation ...
Dr. R. Clement author

From idea to product: Best practices for improving the impact of product development in large organistations

Speaker: Dr. N. Pettit Abstract: As part of a wider improvement initiative across all parts of our value chain, Danfoss, in 2007, launched an initiative to significantly improve its product development processes. The goal was to make radical impro...
Dr. N. Pettit author