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Joels thesis writers

I supervise Master's theses dealing with subjects related to the Decision Support Group at TCS / NADA. Master's theses are in most cases conducted in cooperation with a company or department that perform related research, for example the Swedish Defence Research Agency, the Swedish National Defence College and SaabTech Systems. Feel most welcome to contact me in order to discuss details.

Thesis writers:

Surface Attack Co-ordination (SAC)

Optimization of Surface-to-Surface-Missile Distribution as a Tactical Decision Support Tool

Thesis writer: Iohn Ryott
Mandator: SAAB Technologies
Supervisor at SAAB: Rickard Westberg
Supervisor: Joel Brynielsson
Examiner: Stefan Arnborg
Report number: TRITA-NA-E02125 (the report can be bought from the student office)


This project shows the advantages of using the techniques of mathematical programming during SSM (Surface-to-Surface missile) distribution. SAC is a module within the CETRIS command and control system for the Visby class corvette, and the objective with this work is to create a tactical decision support tool that works in real time. The immediate benefits of this approach are a reduction in personal mind load in the Combat Information Center, shorter response time and optimal distribution of sometimes complicated flying paths. In this model, the optimal value is determined by the sum of the flying times. The value is constrained by the numerical limits associated with number of missiles on each unit and the target classification. By applying basic techniques of Linear Programming, the tactical launching procedure can be considerably improved.

Bayesian hypothesis evaluation of enemy course of action

Thesis writer: Erik Lindberg
Mandator: Swedish Defense Research Agency (FOI), department of Defense Analysis
Supervisor at FOI: Jan-Erik Svensson
Supervisor: Joel Brynielsson and Klas Wallenius
Examiner: Stefan Arnborg


This Masters thesis has been carried out in co-operation with the Royal Institute of Technology (KTH) and the Swedish Defense Research Agency (FOI), the department of Defense Analysis, in Stockholm.

In several decision support studies subjective probabilities are described as useful for Bayesian decision analysis. However, the studies rarely describe any method to quantify these probabilities. That issue is usually left for "domain experts". The problem is that no matter how good the software is - if it is very hard or even impossible to extract the subjective probabilities in a coherent manner - the result will be quite unreliable. My interest in this interdisciplinary difficulty was caused by my background as an officer in the naval reserve and student in applied mathematics. Bayesian hypothesis evaluation of the probable enemy course of actions (COA) was used as the context in which the problem was studied. First of all, the problem of interpreting the probability for a single, non-repeatable action is analyzed. After that the mathematical conditions on the hypothesis and intelligence information are compiled. Then different methods to quantify the probabilities are developed and analyzed. The nature of naval warfare is examined to test if the developed methods can fulfill the compiled mathematical conditions. As a result of that examination I come to the conclusion that naval warfare is not a suitable area for Bayesian hypothesis evaluation of probable enemy COA. Instead a few other areas are suggested for extended research.

Finding One's way through Simulation Space

A Study of Methods and Parameters for Model and Simulation Development in the Swedish Defense

Thesis writer: Marianela García Lozano
Mandator: Swedish Defense Research Agency (FOI), department of Systems Modelling
Supervisor at FOI: Gunnar Holm
Supervisor: Joel Brynielsson
Examiner: Stefan Arnborg


This is a master's thesis study performed under sponsorship of the Swedish Defence Research Agency, FOI, at the department of Systems Modelling. In modeling and simulation at the Swedish defense there are two main approaches, the first is using distributed simulations, usually in combination with HLA, and the second is using simulation frameworks.

The purpose of this thesis is to study the standards, techniques, issues, implications and problem areas of the two approaches and of modeling and simulation. The benefits and disadvantages of each approach are discussed and some general advises and recommendations are provided.

Chessbased wargame for research purposes

Thesis writer: Hans Sandström
Mandator: Swedish National Defence College, Department of War Studies
Supervisor at FHS: Jan Kuylenstierna
Supervisor: Joel Brynielsson
Examiner: Stefan Arnborg
Report number: TRITA-NA-E02008 (the report can be bought from the student office)


Around the world armed forces are going through a technical revolution, this also applies to the Swedish Armed Forces. The technical revolution makes it possible to produce large amounts of data from sensors. This rises the questions about the need for information in future wars. One way to attack these questions is by using microworlds (scaled worlds).

This thesis initially describes the technical revolution that the Swedish Armed Forces are going through. In the light of this revolution the devel­opment of a computerized research tool is described. The tool will be used to examine the information need of commanders in future crisis situations. Finally the user interface of the tool is evaluated to show that it is useful.

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Latest change December 18, 2002
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