Research

"If we knew what we were doing, it wouldn't be called research, would it?" Albert Einstein.


My main researh interest is simulation modelling in general, and discrete event simulation in particular. I have developed many models and applied simulation modelling to a number of domains; military, supply chains, call centres, and healthcare.

Simulation Modelling Methodologies

Web page

To be added: SharpSim

Simulation Optimization

Web page
My current research interest is Simulation Optimization (SO). I believe that this subject is one of the interesting areas of simulation research. There are a number of definitions for SO, but according to me it is; "an optimization problem that can be solved better with simulation modelling". Particularly, research questions such as;

• Does it worth to simulate for optimization?
• Can we build fast simulation models for solving optimization problems?
• What benefit do we get, if any, when we use multi-metahuristic methods in SO?

are of my interest.

Application Areas: Healthcare Modelling

My PhD research focused on modelling patient flows in hospitals for managing and improving waiting time related performance. Please take a look at the project's web site.

Application Areas: Naval Modelling

I also like to work on naval modelling matters.
Here, I give a tutorial, and the source code, for building a basic naval simulation model, using Simkit and OpenMap. In this simple example two opensource packages are used to create two entities moving on a map. When Ship A detects Ship B, a counter is incremented.

• A Note on Building Naval Simulations
• The source code for Eclipse in Java

Application Areas: Supply Chains Modelling

A generic warehouse simulation model is built by Arda Ceylan for experimenting with different warehouse layouts. The user interface is seen below. For animation and graphics, Microsoft's XNA Game Studio is used. Also, as an outcome of this research, SharpSim DES library is created.