activity
20182023
most citedCalibrating COVID-19 SEIR models with time-varying effective contact rates

33 citations · 103 across the 9 of their papers we have counts for

collaborators

10 papers

nlin.PS2023★ 10 cited

Persistence of chimera states and the challenge for synchronization in real-world networks

Riccardo Muolo, Joseph D. O'Brien, Timoteo Carletti +1

The emergence of order in nature manifests in different phenomena, with synchronization being one of the most representative examples. Understanding the role played by the interact…

physics.soc-ph2021★ 33 cited

Calibrating COVID-19 SEIR models with time-varying effective contact rates

James P. Gleeson, Thomas Brendan Murphy, Joseph D. O'Brien +3

We describe the population-based SEIR (susceptible, exposed, infected, removed) model developed by the Irish Epidemiological Modelling Advisory Group (IEMAG), which advises the Iri…

physics.soc-ph2021

Memory-cognizant generalization to Simon's random-copying neutral model

Joseph D. O'Brien, James P. Gleeson

Simon's classical random-copying model, introduced in 1955, has garnered much attention for its ability, in spite of an apparent simplicity, to produce characteristics similar to t…

physics.soc-ph2020★ 1 cited

Hierarchical route to the emergence of leader nodes in real-world networks

Joseph D. O'Brien, Kleber A. Oliveira, James P. Gleeson +1

A large number of complex systems, naturally emerging in various domains, are well described by directed networks, resulting in numerous interesting features that are absent from t…

physics.soc-ph2020

A complex networks approach to ranking professional Snooker players

Joseph D. O'Brien, James P. Gleeson

A detailed analysis of matches played in the sport of Snooker during the period 1968-2020 is used to calculate a directed and weighted dominance network based upon the correspondin…

physics.soc-ph2020★ 10 cited

Identification of skill in an online game: The case of Fantasy Premier League

Joseph D. O'Brien, James P. Gleeson, David J. P. O'Sullivan

In all competitions where results are based upon an individual's performance the question of whether the outcome is a consequence of skill or luck arises. We explore this question…

math.OC2020★ 5 cited

A Generalization of the Classical Kelly Betting Formula to the Case of Temporal Correlation

Joseph D. O'Brien, Kevin Burke, Mark E. Burke +1

For sequential betting games, Kelly's theory, aimed at maximization of the logarithmic growth of one's account value, involves optimization of the so-called betting fraction . I…

physics.soc-ph2020★ 10 cited

Quantifying Uncertainty in a Predictive Model for Popularity Dynamics

Joseph D. O'Brien, Alberto Aleta, Yamir Moreno +1

The Hawkes process has garnered attention in recent years for its suitability to describe the behavior of online information cascades. Here, we present a fully tractable approach t…

physics.soc-ph2018★ 21 cited

Spreading of Memes on Multiplex Networks

Joseph D. O'Brien, Ioannis K. Dassios, James P. Gleeson

A model for the spreading of online information or "memes" on multiplex networks is introduced and analyzed using branching-process methods. The model generalizes that of [Gleeson…

q-fin.TR2018★ 13 cited

A Generalized Framework for Simultaneous Long-Short Feedback Trading

Joseph D. O'Brien, Mark E. Burke, Kevin Burke

We present a generalization of the Simultaneous Long-Short (SLS) trading strategy described in recent control literature wherein we allow for different parameters across the short…