Research of Michael Lees

Agent-based Modelling and Complex System Simulation


As of August 2013 I am an Assistant Professor at the Universiteit van Amsterdam in the Computational Science Lab (Informatics Institute). Before this I had been an Assistant Professor at Nanyang Technological University (NTU) Singapore.

I currently conduct regular research visits to Nanyang Technological University (NTU), Singapore and ITMO University, St Petersburg.

At the University of Amsterdam I am the Director for the Master Computational Science. Prospective students should send enquiries to

I completed my PhD Adaptive Optimistic Simulation of Multi-Agent Systems at Nottingham University and I graduated from Edinburgh University in July of 2001 with a joint honours Computer Science/Artificial Intelligence degree.

Dr Michael Lees

Office: C3.142,
Instituut voor Informatica,
University of Amsterdam,
Science Park 904, 1098 XH Amsterdam 

Email: m.h.lees [at]
Tel: +31 (0) 20 525 7538


My current research interests are primarily in modelling and simulation of large scale complex systems. I’m particularly interested in understanding the effect that human behavior has on such systems and the important role that individual behavioral interactions have on system level dynamics. Current application areas include the study of human crowds and egress, social contact networks and traffic and transportation systems. In order to simulate such systems it is often necessary to address problems of scalability, so my work also attempts to address this issue using various techniques from distributed simulation, multi-scale modelling and high performance computing.


H-Index: 17

I10-Index: 27

[what is an h-index?]


PhD students:



  • Programme Committee: SIMUTOOLS 2013, 2014, 2015, IEEE/ACM Distributed Simulation and Real Time Applications (DS-RT) 2009, 2010, 2015, Autonomous Agents & Multi-Agent Systems AAMAS 2015, International Conference on Computational Science (ICCS) 2011-present, IEEE International Conference on Advanced Information Networking and Applications 2011, MABS 12th International Workshop on Multi-Agent-Based Simulation 2011, IEEE/WIC/ACM Intelligent Agent Technologies (IAT) 2015, AsiaSim 2013
  • Editor: Journal of Computational Science 2011-present


76 entries « 1 of 2 »

Zhong, Jinghui, Hu, Nan, Cai, Wentong, Lees, Michael, Luo, Linbo

Density-based evolutionary framework for crowd model calibration (Journal Article)

Journal of Computational Science, 6 , pp. 11–22, 2015, ISSN: 18777503.

(Abstract | Links | BibTeX)


Dominik Pelzer, Heiko Aydt, Jiajian Xiao, Michael Lees,, Alois Knoll

A Partition Based Match Making Algorithm for Ridesharing (Journal Article)

IEEE Transactions on Intelligent Transportation Systems, ((to appear)), 2014.



Viswanathan, Vaisagh, Lee, Chong Eu, Lees, Michael Harold, Cheong, Siew Ann, Sloot, Peter M. A.

Quantitative comparison between crowd models for evacuation planning and evaluation (Journal Article)

The European Physical Journal B, 87 (2), pp. 27, 2014, ISSN: 1434-6028.

(Abstract | Links | BibTeX)


Luo, Linbo, Yin, Haiyan, Cai, Wentong, Lees, Michael, Othman, Nasri Bin, Zhou,, Suiping

Towards a data-driven approach to scenario generation for serious games (Journal Article)

Computer Animation and Virtual Worlds, 25 (3-4), pp. 395–404, 2014, ISSN: 15464261.

(Abstract | Links | BibTeX)


Zhong, Jinghui, Luo, Linbo, Cai, Wentong, Lees, Michael

Automatic rule identification for agent-based crowd models through gene expression programming (Inproceeding)

2014 international conference on Autonomous agents and multi-agent systems, pp. 1125–1125–1132–1132, International Foundation for Autonomous Agents and Multiagent Systems, 2014, ISBN: 978-1-4503-2738-1.

(Abstract | Links | BibTeX)


Roy, Debraj, Lees, Michael Harold, Palavalli, Bharath, Pfeffer, Karin, Sloot, M.A. Peter

The emergence of slums: A contemporary view on simulation models (Journal Article)

Environmental Modelling & Software, 59 , pp. 76–90, 2014, ISSN: 13648152.

(Abstract | Links | BibTeX)


Wagner, Michael, Cai, Wentong, Lees, Michael H., Aydt, Heiko

Evolving Agent-based Models Using Complexification Approach (Journal Article)

Procedia Computer Science, 29 , pp. 310–321, 2014, ISSN: 18770509.

(Abstract | Links | BibTeX)


Angela, Teo Yu Hui, Viswanathan, Vaisagh, Lees, Michael, Cai, Wentong

Analysing the Effectiveness of Wearable Wireless Sensors in Controlling Crowd Disasters (Journal Article)

Procedia Computer Science, 29 , pp. 1590–1599, 2014, ISSN: 18770509.

(Abstract | Links | BibTeX)


Xu, Yadong, Cai, Wentong, Aydt, Heiko, Lees, Michael

Efficient Graph-based Dynamic Load-balancing for Parallel Large-scale Agent-based Traffic Simulation (Inproceeding)

Proceedings of the 2014 Winter Simulation Conference, pp. 3483–3494, IEEE Press, Piscataway, NJ, USA, 2014.

(Abstract | Links | BibTeX)


Zhong, Jinghui, Cai, Wentong, Luo, Linbo, Lees, Michael

Ea-based Evacuation Planning Using Agent-based Crowd Simulation (Inproceeding)

Proceedings of the 2014 Winter Simulation Conference, pp. 395–406, IEEE Press, Piscataway, NJ, USA, 2014.

(Abstract | Links | BibTeX)


Suryanarayanan, Vinoth, Theodoropoulos, Georgios, Lees, Michael

PDES-MAS: Distributed Simulation of Multi-agent Systems (Journal Article)

Procedia Computer Science, 18 , pp. 671–681, 2013.

(Abstract | Links | BibTeX)


Hu, Nan, Lees, Michael Harold, Zhou, Suiping

A pattern-based modeling framework for simulating human-like pedestrian steering behaviors (Inproceeding)

Proceedings of the 19th ACM Symposium on Virtual Reality Software and Technology - VRST '13, pp. 179, ACM Press, New York, New York, USA, 2013, ISBN: 9781450323796.

(Links | BibTeX)


Othman, Nasri Bin, Luo, Linbo, Cai, Wentong, Lees, Michael

Spatial indexing in agent-based crowd simulation (Inproceeding)

SimuTools '13 Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques, pp. 92–100, ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering), 2013, ISBN: 978-1-4503-2464-9.

(Links | BibTeX)


Luo, Linbo, Yin, Haiyan, Cai, Wentong, Lees, Michael, Zhou, Suiping

Interactive scenario generation for mission-based virtual training (Journal Article)

Computer Animation and Virtual Worlds, 24 (3-4), pp. 345–354, 2013, ISSN: 15464261.

(Links | BibTeX)


Wagner, Michael, Cai, Wentong, Lees, Michael

Emergence by Strategy: Flocking Boids and their Fitness in Relation to Model Complexity (Inproceeding)

Proceedings of the 2013 Winter Simulation Conference, WSC 2013, Washington D.C., USA, December 8-11, 2013, 2013.



Zehe, Daniel, Aydt, Heiko, Lees, Michael, Knoll, Alois

JavaScript Distributed Agent Based Discrete Event Simulation (Inproceeding)

In proceedings of the The 17th IEEE/ACM International Symposium on Distributed Simulation and Real Time Applications, 2013.



Aydt, Heiko, Xu, Yadong, Lees, Michael, Knoll, Alois

A Multi-Threaded Execution Model for the Agent-based SEMSim Traffic Simulation (Inproceeding)

Proceedings of the 13th International Conference on Systems Simulation (AsiaSim), pp. 1––12, Springer Berlin Heidelberg, 2013.

(Links | BibTeX)


Luo, Linbo, Yin, Haiyan, Zhong, Jinghui, Cai, Wentong, Lees, Michael, Zhou, Suiping

Mission-based Scenario Modeling and Generation for Virtual Training (Inproceeding)

Proceedings of the Ninth Annual AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, 2013.



Xiao, Jiajian, Aydt, Heiko, Lees, Michael, Knoll, Alois

A Partition Based Match Making Algorithm for Taxi Sharing (Inproceeding)

16th International IEEE Annual Conference on Intelligent Transportation Systems, 2013.





Advances in Complex Systems, 16 (02n03), pp. 1250034, 2013, ISSN: 0219-5259.

(Abstract | Links | BibTeX)


Adamatzky, A, Lees, M H, Sloot, P M A

Physarum in the Netherlands: Responding to the Flood (Book Chapter)

Adamatzky, (Ed.): Bioevaluation of World Transport Networks, pp. 1–380, World Scientific, 2012.

(Links | BibTeX)


Aydt, Heiko, Lees, Michael, Turner, Stephen J, Cai, Wentong

Toward Simulation-based Egress Optimisation in Smart Buildings using Symbiotic Simulation (Inproceeding)

Pedestrian Evacuation Dynamics, 2012.



Aydt, Heiko, Lees, Michael, Knoll, Alois

Symbiotic simulation for future electro-mobility transportation systems (Inproceeding)

Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC), pp. 1–12, Winter Simulation Conference IEEE, 2012, ISBN: 978-1-4673-4782-2.

(Abstract | Links | BibTeX)


Fozard, J A, Lees, M, King, J R, Logan, B S

Inhibition of quorum sensing in a computational biofilm simulation. (Journal Article)

Bio Systems, 109 (2), pp. 105–14, 2012, ISSN: 1872-8324.

(Abstract | Links | BibTeX)


Xu, Yadong, Aydt, Heiko, Lees, Michael

SEMSim: A Distributed Architecture for Multi-scale Traffic Simulation (Inproceeding)

2012 ACM/IEEE/SCS 26th Workshop on Principles of Advanced and Distributed Simulation, pp. 178–180, IEEE Computer Society IEEE, 2012, ISBN: 978-1-4673-1797-9.

(Abstract | Links | BibTeX)


Viswanathan, Vaisagh, Lees, Michael

An Information-Based Model of Pre-evacuation Behavior for Agent Based Egress Simulation (Inproceeding)

Pedestrian Evacuation Dynamics, 2012.



Di Mauro, M, Lees, M, Megawati, K, Huang, Z

Pedestrian-vehicles interaction during evacuation (Inproceeding)

Pedestrian Evacuation Dynamics, 2012.



Mordvintsev, Alexander, Krzhizhanovskaya, Valeria, Lees, Michael, Sloot., Peter

Simulation of City Evacuation Coupled to Flood Dynamics (Inproceeding)

Pedestrian Evacuation Dynamics, 2012.



Xing, Pengfei, Lees, Michael, Nan, Hu, Viswanthatn, T

Validation of Agent-Based Simulation through Human Computation: An Example of Crowd Simulation (Inproceeding)

Multi-Agent-Based Simulation XII, pp. 90–102, Springer Berlin/Heidelberg, 2012.

(Links | BibTeX)


Zhang, Tianyou, Lees, Michael, Kwoh, Chee Keong, Fu, Xuju, Lee, Gary Kee Khoon, Goh, Rick Siow Mong

A contact-network-based simulation model for evaluating interventions under “what-if” scenarios in epidemic (Inproceeding)

Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC), pp. 1–12, Winter Simulation Conference IEEE, 2012, ISBN: 978-1-4673-4782-2.

(Links | BibTeX)


Viswanathan, Vaisagh, Lees, Michael

Modeling and Analyzing the Human Cognitive Limits for Perception in Crowd Simulation (Inproceeding)

Transactions on Computational Science XVI, pp. 55–76, Springer Berlin Heidelberg, 2012.



Zhang, Tianyou, Fu, Xiuju, Ma, Stefan, Xiao, Gaoxi, Wong, Limsoon, Kwoh, Chee Keong, Lees, Michael, Lee, Gary Kee Khoon, Hung, Terence

Evaluating temporal factors in combined interventions of workforce shift and school closure for mitigating the spread of influenza. (Journal Article)

PloS one, 7 (3), pp. e32203, 2012, ISSN: 1932-6203.

(Abstract | Links | BibTeX)


Wang, Yongwei, Lees, Michael, Cai, Wentong

Grid-based partitioning for large-scale distributed agent-based crowd simulation (Inproceeding)

Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC), pp. 1–12, Winter Simulation Conference IEEE, 2012, ISBN: 978-1-4673-4782-2.

(Links | BibTeX)


T., Vaisagh Viswanathan, Lees, Michael

An Information-Based Perception Model for Agent-Based Crowd and Egress Simulation (Inproceeding)

2011 International Conference on Cyberworlds, pp. 38–45, IEEE IEEE, 2011, ISBN: 978-1-4577-1453-5.

(Abstract | Links | BibTeX)


Aydt, Heiko, Lees, Michael, Luo, Linbo, Cai, Wentong, Low, Malcolm Yoke Hean, Kadirvelen, Sornum Kabilen

A Computational Model of Emotions for Agent-Based Crowds in Serious Games (Inproceeding)

2011 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology, pp. 72–80, IEEE IEEE, 2011, ISBN: 978-1-4577-1373-6.

(Abstract | Links | BibTeX)


Zhang, Tianyou, Fu, Xiuju, Kwoh, Chee Keong, Xiao, Gaoxi, Wong, Limsoon, Ma, Stefan, Soh, Harold, Lee, Gary Kee Khoon, Hung, Terence, Lees, Michael

Temporal factors in school closure policy for mitigating the spread of influenza. (Journal Article)

Journal of public health policy, 32 (2), pp. 180–97, 2011, ISSN: 1745-655X.

(Abstract | Links | BibTeX)


Luo, Linbo, Zhou, Suiping, Cai, Wentong, Lees, Michael, Low, Malcolm Yoke Hean, Sornum, Kabilen

HumDPM: A Decision Process Model for Modeling Human-like Behaviors in Time- critical and Uncertain Situation (Inproceeding)

Gavrilova Marina; Tan, Kenneth (Ed.): Transactions on Computational Science XII, pp. 260, springer, 2011.

(Links | BibTeX)


Stevens, D, Power, H, Lees, M, Morvan, H

A local hermitian RBF meshless numerical method for the solution of multi-zone problems (Journal Article)

Numerical Methods for Partial Differential Equations, 27 (5), pp. 1201–1230, 2011, ISSN: 0749159X.

(Links | BibTeX)


Orsini, P, Power, H, Lees, M

The Hermite radial basis function control volume method for multi-zones problems; A non-overlapping domain decomposition algorithm (Journal Article)

Computer Methods in Applied Mechanics and Engineering, 200 (5-8), pp. 477–493, 2011, ISSN: 0045-7825.

(Links | BibTeX)


Hu, N, Lees, M, Zhou, S, Viswanathan T, V

Pattern based motion for crowd simulation (Inproceeding)

Transactions on edutainment VI, pp. 99–110, Springer, 2011.

(Abstract | BibTeX)


Xiong, Muzhou, Lees, Michael, Cai, Wentong, Zhou, Suiping, Low, Malcolm Yoke Hean

Analysis of an efficient rule-based motion planning system for simulating human crowds (Journal Article)

The Visual Computer, 26 (5), pp. 367–383, 2010, ISSN: 0178-2789.

(Abstract | Links | BibTeX)


Luo, Linbo, Zhou, Suiping, Cai, Wentong, Lees, Michael, Low, Malcolm Yoke Hean

Modeling Human-Like Decision Making for Virtual Agents in Time-Critical Situations (Inproceeding)

2010 International Conference on Cyberworlds, pp. 360–367, IEEE, 2010, ISBN: 978-1-4244-8301-3.

(Abstract | Links | BibTeX)


Liang, Anson Yuanxi, Low, Malcolm Yoke-Hean, Lees, Michael Harold, Cai, Wentong, Zhou, Suiping

A framework of intelligent environment with smart-active objects (IESAO) for flexible and efficient crowd simulation (Inproceeding)

McGraw, Robert; Imsand, Eric; Chinni, Michael (Ed.): Proceedings of the 2010 Spring Simulation Multiconference, SpringSim 2010, Orlando, Florida, USA, April 11-15, 2010, pp. 19, SCS/ACM, 2010, ISBN: 978-1-4503-0069-8.

(Abstract | BibTeX)


Le Tran, Hoai Nam, Sornum, Kabilen, Seah, Hock Soon, Cai, Wentong, Low, Malcolm Yoke Hean, Zhou, Suiping, Lees, Michael

A systematic approach for rapid 3D reconstruction from photosets (Inproceeding)

2010 11th International Conference on Control Automation Robotics & Vision, pp. 1167–1174, IEEE, 2010, ISBN: 978-1-4244-7814-9.

(Links | BibTeX)


Xiong, Muzhou, Lees, Michael, Cai, Wentong, Zhou, Suiping, Low, Malcolm Yoke Hean

Hybrid modelling of crowd simulation (Journal Article)

Procedia Computer Science, 1 (1), pp. 57–65, 2010, ISSN: 18770509.

(Abstract | Links | BibTeX)


Chen, Dan, Turner, Stephen John, Cai, Wentong, Theodoropoulos, Georgios K, Xiong, Muzhou, Lees, Michael

Synchronization in federation community networks (Journal Article)

Journal of Parallel and Distributed Computing, 70 (2), pp. 144–159, 2010, ISSN: 07437315.

(Abstract | Links | BibTeX)


Wang, Yongwei, Lees, Michael, Cai, Wentong, Zhou, Suiping, Low, Malcol

Cluster based partitioning for agent-based crowd simulations (Inproceeding)

Dunkin, Ann; Ingalls, Ricki; Yücesan, Enver; Rossetti, Manuel; Hill, Ray; Johansson, Björn (Ed.): Proceedings of the 2009 Winter Simulation Conference (WSC), pp. 1047–1058, IEEE, 2009, ISBN: 978-1-4244-5770-0.

(Abstract | Links | BibTeX)


Stevens, David, Power, Henry, Lees, Michael, Morvan, Herve

The use of PDE centres in the local RBF Hermitian method for 3D convective-diffusion problems (Journal Article)

Journal of Computational Physics, 228 (12), pp. 4606–4624, 2009, ISSN: 00219991.

(Links | BibTeX)


Stevens, David, Power, Henry, Lees, Michael, Morvan, Herve

A Meshless Solution Technique for the Solution of 3D Unsaturated Zone Problems, Based on Local Hermitian Interpolation with Radial Basis Functions (Journal Article)

Transport in Porous Media, 79 (2), pp. 149–169, 2009, ISSN: 0169-3913.

(Links | BibTeX)


Lees, Michael, Logan, Brian, Theodoropoulos, Georgios

Analysing probabilistically constrained optimism (Journal Article)

Concurrency and Computation: Practice and Experience, 21 (11), pp. 1467–1482, 2009, ISSN: 15320626.

(Abstract | Links | BibTeX)

76 entries « 1 of 2 »


I am the director for the Master Computational Science at UvA. Please visit the programme website or contact the programme manager ( for further information.

University of Amsterdam: 2013-present

Semester 1 : 2014 : Modelling Your World – Amsterdam University College; Introduction Computational Science, BSc UvA

Semester 2 : 2014 :

Semester 2 : 2013 : Introduction to Intelligent Agents, NTU; Complex System Simulation – Master Computational Science, UvA

Semester 1 : 2013 : Modelling Your World – Amsterdam University College

Nanyang Technological University: 2009-2012


Semester 2 : 2012 : Introduction to Intelligent Agents; Introduction to Computational Thinking*

Semester 1 : 2012 : Introduction to Computational Thinking

Semester 2 : 2011 : Introduction to Intelligent Agents

Semester 1 : 2011 : Introduction to Computational Thinking*

Semester 2 : 2010 : Introduction to Intelligent Agents*

Semester 1 : 2010 : Software Systems and Models*

Semester 2 : 2009 : Software Systems and Models*

*Course coordinator


Semester 2 : 2012 : Introduction to Intelligent Agents; Introduction to Computational Thinking

Semester 1 : 2012 : Introduction to Computational Thinking; Operating Systems

Semester 2 : 2011 : Introduction to Intelligent Agents; Operating Systems

Semester 1 : 2011 : Introduction to Computational Thinking

Semester 2 : 2010 : Introduction to Intelligent Agents; Operating Systems

Semester 1 : 2010 : Software Systems and Models

Semester 2 : 2009 : Software Systems and Models

For all teaching materials please visit blackboard

Ongoing Projects


I worked as the NTU-PI of Research Package 5 (RP5) of the TUM-CREATE project. For more details of the project please visit I am still involved with the project as a collaborator


CROSIT – COSMOS – Crowd Simulation

While I was working in Singapore I was involved in a number of projects related to Crowd Simulation. For details about all of this work please see


Youth Violence

This is a project looking at developing data driven agent-based models to understand the development at identifying risk criteria for youth violence in Singapore. I am a collaborator on this project which will start officially in 2013.



I was also a member of the MAGIC research team at NTU:

Past Projects

Validation of Agent-based models through human computation

Agent-based modeling as a methodology for understanding natural phenomena is becoming increasingly popular in many disciplines of scientific research. Validation is still a significant problem for agent- based modelers and while various validation methodologies have been proposed, none have been widely adopted. Data plays a key role in the validation of any simulation system, typically large amounts of observable real world data are necessary to compare with model outputs. However, the complex nature of the studied natural systems will often make data collection difficult. This is certainly true for crowd and egress simulation, where data is limited and difficult to collect. In this project we attempt to develop a new technique for validation of agent-based models, particularly those which relate to human behavior. This methodology adopts ideas from the field of Human Computation as a means of collecting large amounts of contextual behavioral data. The key principle is to use games as a means of framing behavioral questions to try and capture people’s natural and instinctive decisions. We investigate some key design challenges for such games and plan to develop one example game in the form of Escape. Escape is an egress based game where people are tasked to escape from rooms inhabited by other people.


DEPATHSS – Dynamic Egrees PlAnning ThrougH valid Symbiotic Simulation

This project proposes to investigate the feasibility of using agent-based simulation and sensor technology to design an intelligent dynamic building or venue evacuation system. The system assumes an “intelligent” building, designed to have multiple static and dynamic sensors for: smoke intensity, temperature, crowd density (through image processing and CCTV), etc. During an emergency situation these sensors are used to dynamically gather information about the unfolding scenario. We consider a system that is equipped with electronic displays, which can be changed to indicate location specific directions (forward, back, left, right, down and up) by some control mechanism. With sensors and signs, it would be possible to dynamically adjust the exit directions depending on the environmental conditions and movement of the evacuees. Alone, these mechanisms (sensors and dynamic signs) would provide an effective method for a human safety controller to guide building inhabitants from the building. However, this rests on the assumption that the controller is able to make a fast and safe evacuation plan. In reality: fire spread, smoke spread, overcrowding and human panic make this planning process very complex. Moreover, the dynamic nature of the environment in emergency scenarios means events unfold in highly unpredictable ways (that would be very difficult for a fixed simulation, or prior planning to account for, e.g., bomb explosion) and effectively invalidate the effectiveness of any pre-chosen route.

DEPATHSS intends to develop a simulation system which, given sensory input from the environment, will automatically build a simulation model and then execute and evaluate a series of simulated evacuation plans to determine the safest egress plan. Once an appropriate plan is determined, the system will configure the exit signboards to direct the inhabitants to safety. The simulation will also be able to interact with the environment and effectively investigate and build its own understanding of the environment through the use of dynamic sensors.


COSMOS – CrOwd Simulation for Military OperationS


The project is looking at various aspects of modeling, simulation and visualisation of large human crowds for military operations. The project aims to develop an entire framework for agent-based modelling of crowds under a variety of different scenarios. The application of crowd simulation to military scenarios is quite unique but is relevant to planning, training and operational decision making. The are five main areas of work being investigated by a team of 6 researchers.

GABARDINE – Groundwater Artificial recharge Based on Alternative sources of wateR: aDvanced INtegrated technologies and managEment


I worked as a research fellow in the Department of Mechanical, Materials and Manufacturing Engineering at Nottingham University. This was as part of a European project GABARDINE. The aim of the project was the development of an integrative methodology for: 1) the evaluation of aquifer water budgets as a basis for the determination of hydrologic deficits; 2) mapping of areas according to groundwater quality and vulnerability to contamination factors; 3) areas potentially suitable for seasonal and long-term storage; 4) Delineation and characterization of replenishment areas to groundwater aquifers, using state-of-the-art remote sensing, aerial and satellite imaging, incorporating them into a GIS system and for the identification of propitious areas for artificial replenishment. At Nottingham we were developing new numerical techniques for the simulation of groundwater flow. As part of this we developed CFD style software which allows experimenters to apply the newly developed numerical techniques to a variety of flow problems. We also investigated the application of parallel techniques and in particular GPGPUs to the problem of simulating flow in porous media. As a consequence of this work I am now a member of a commercial consultancy team which offer modelling and simulation services in the fields water resource management, pollution control, computational hydrology, R&D projects in hydrology, hydro-geology and other environmental issues and energy related problems (geothermal energy, energy storage in porous formations and CO2 sequestration).

Distributed P2P Simulation


I worked for a short period of 3 months as a research consultant at Birmingham University. In this time I was focused on development of a system for large scale simulation of p2p networks. This work was an adaptation of the PeerSim simulation tool developed as part of the BISON project. I was also involved with a team of people responsible for installation and promotion of the Blue-Bear cluster.

BacGrid – Agent-based Integrative Modelling of Bacterial Populations


I was a Research Fellow at the University of Nottingham working on a BBSRC project, Agent-based Integrative Modelling of Bacterial Populations. The aim of this project is to explore the feasibility of using distributed Grid-based simulation techniques for studying complex agent-based models of cell populations. The project will investigate the computational efficiency of biological simulations built using HLA-compliant simulators instantiated and linked using Grid services and, more generally, assess the suitability of the HLA framework for biological modelling. This is a collaborative project with the Centre for Mathematical Medicine at the University of Nottingham.

PDESMAS – Parallel Discrete Event Simulation for Multi-Agent Systems


I completed my PhD Adaptive Optimistic Simulation of Multi-Agent Systems at Nottingham University as part of pdes-mas a large EPSRC project with Birmingham University. My PhD developed two new synchronisation algorithms for PDES, with a particular focus on multi-agent simulation. I was also involved with the development of methods for dynamic load balancing and interest management and investigated how these areas relate to synchronisation. The project team developed a simulation kernel in C++ which is still currently being developed and adapted. Towards the beginning of my PhD work I adapted the SIM_AGENT toolkit and made it possible to write HLA compatible agent simulations. The resulting system is a collection of SIM_AGENT libraries which we have called HLA_AGENT.





[SoundCloud] – Mixes from 10 years ago…


Michael Lees

mhlees @mhlees
Michael Lees  @mhlees
@UvA_CSL congratulations to Dr Mountrakis on your graduation @lmountr 
Michael Lees  @mhlees
Out new paper - The influence of memory on indoor environment exploration: A numerical study #springerlink 
Michael Lees  @mhlees
UK Science and EU membership: United we stand… 
Michael Lees  @mhlees
Another year, another iccs. #iccs2015 Reykjavik, Iceland. 
Michael Lees  @mhlees
End of the car age: how cities are outgrowing the automobile 
Michael Lees  @mhlees
New assistant professor position in Urban Geography & Big Data: #urbanplanning #BigData 
Michael Lees  @mhlees
“To photograph: it is to put on the same line of sight the head, the eye and the heart.” 
Michael Lees  @mhlees
Tourists v locals: city heat maps show where sightseers flock – in pictures 
Michael Lees  @mhlees
@derekruths talking about pitfalls of data and studying social systems 
Michael Lees  @mhlees
The ten largest gatherings in human history 
Michael Lees  @mhlees
RT @techreview:Astrophysicists Prove That Cities On Earth Grow in the Same Way As Galaxies in Space 
Michael Lees  @mhlees
RT @barabasi:Ebola Is Coming. A Travel Ban Won't Stop Outbreaks