Publications de James Pugh | EPFL Graph Search

The e-puck, a Robot Designed for Education in Engineering

Dario Floreano, Alcherio Martinoli, Francesco Mondada, Jean-Christophe Zufferey, Michael Bonani, Stéphane Magnenat, James Pugh, Adam Klaptocz, Christopher Cianci, Xavier Raemy

Mobile robots have the potential to become the ideal tool to teach a broad range of engineering disciplines. Indeed, mobile robots are getting increasingly complex and accessible. They embed elements from diverse ﬁelds such as mechanics, digital electronic ...

IPCB: Instituto Politécnico de Castelo Branco2009

A Fast On-Board Relative Positioning Module for Multi-Robot Systems

Alcherio Martinoli, James Pugh, Xavier Raemy, Riccardo Falconi, Cédric Favre

We present an on-board robotic module which can determine relative positions among miniature robots. The module uses high-frequency modulated infrared emissions to enable nearby robots to determine the range, bearing, and message of the sender with a rapid ...

2009

Distributed Scalable Multi-Robot Learning using Particle Swarm Optimization

Alcherio Martinoli, James Pugh

Designing effective behavioral controllers for mobile robots can be difficult and tedious; this process can be circumvented by using online learning techniques which allow robots to generate their own controllers online in an automated fash- ion. In multi- ...

2009

Synthesis, modeling, and experimental validation of distributed robotic search

James Pugh

The work of this thesis centers around the research subject of distributed robotic search. Within the field of distributed robotic systems, a task of particular interest is attempting to locate one or more targets in a possibly unknown environment. While n ...

EPFL2008

The Collective Memory of Amnesic Processes

Rachid Guerraoui, Bastian Pochon, James Pugh, Ron Levy

This paper considers the problem of robustly emulating a shared atomic memory over a distributed message passing system where processes can fail by crashing and possibly recover. We revisit the notion of atomicity in the crash-recovery context and introduc ...

2008

Exploration of an Incremental Suite of Microscopic Models for Acoustic Event Monitoring Using a Robotic Sensor Network

Alcherio Martinoli, James Pugh, Christopher Cianci

Simulation is frequently used in the study of multi-agent systems. Unfortunately, in many cases, it is not necessarily clear how faithfully the details of the simulated model represent the behavior of the physical system. Often, the effects of the environm ...

IEEE2008

Distributed Adaptation in Multi-Robot Search using Particle Swarm Optimization

Alcherio Martinoli, James Pugh

We present an adaptive strategy for a group of robots engaged in the localization of multiple targets. The robotic search algorithm is inspired by chemotaxis behavior in bacteria, and the algorithmic parameters are updated using a distributed implementatio ...

2008

Communication in a Swarm of Miniature Robots: The e-Puck as an Educational Tool for Swarm Robotics

Alcherio Martinoli, James Pugh, Christopher Cianci, Xavier Raemy

Swarm intelligence, and swarm robotics in particular, are reaching a point where leveraging the potential of communication within an artificial systempromises to uncover newand varied directions for interesting research without compromising the key propert ...

2007

Parallel Learning in Heterogeneous Multi-Robot Swarms

Alcherio Martinoli, James Pugh

Designing effective behavioral controllers for mobile robots can be difficult and tedious; this process can be circumvented by using unsupervised learning techniques which allow robots to evolve their own controllers in an automated fashion. In multi-robot ...

2007

The Cost of Reality: Effects of Real-World Factors on Multi-Robot Search

Alcherio Martinoli, James Pugh

Designing algorithms for multi-robot systems can be a complex and difficult process: the cost of such systems can be very high, collecting experimental data can be time consuming, and individual robots may malfunction, invalidating experiments. These const ...

2007