16 citations · 31 across the 7 of their papers we have counts for
7 papers
Gradient Estimation and Variance Reduction in Stochastic and Deterministic Models
Ronan Keane
It seems that in the current age, computers, computation, and data have an increasingly important role to play in scientific research and discovery. This is reflected in part by th…
Variance Reduction for Score Functions Using Optimal Baselines
Ronan Keane, H. Oliver Gao
Many problems involve the use of models which learn probability distributions or incorporate randomness in some way. In such problems, because computing the true expected gradient…
Increasing Traffic Throughput by Controlling Autonomous Vehicles at Low Penetration Rates
Ronan L. Keane, H. Oliver Gao
Human drivers may behave in an imprecise/unstable manner, leading to traffic oscillations which are harmful to traffic throughput. Recent field experiments have shown that the cont…
A formulation of the relaxation phenomenon for lane changing dynamics in an arbitrary car following model
Ronan Keane, H. Oliver Gao
Lane changing dynamics are an important part of traffic microsimulation and are vital for modeling weaving sections and merge bottlenecks. However, there is often much more emphasi…
Fast Calibration of Car Following models to Trajectory data using the Adjoint Method
Ronan Keane, H. Oliver Gao
Before a car-following model can be applied in practice, it must first be validated against real data in a process known as calibration. This paper discusses the formulation of cal…
Estimating speech from lip dynamics
Jithin Donny George, Ronan Keane, Conor Zellmer
The goal of this project is to develop a limited lip reading algorithm for a subset of the English language. We consider a scenario in which no audio information is available. The…
Beamed Core Antimatter Propulsion: Engine Design and Optimization
Ronan Keane, Wei-Ming Zhang
A conceptual design for beamed core antimatter propulsion is reported, where electrically charged annihilation products directly generate thrust after being deflected and collimate…