# Fiches de cours

## Applied probability & stochastic processes

Sutter Tobias
Zhen Jianzhe

English

#### Summary

This course focuses on dynamic models of random phenomena, and in particular, the most popular classes of such models: Markov chains and Markov decision processes. We will also study applications in queuing theory, finance, project management, etc.

#### Content

The following topics will tentatively be covered in the course:

1. Discrete-time Markov chains

- Basic definitions, transition probabilities

- Classification of states

- Stationary and limiting distributions, convergence to equilibrium

- Hitting times and absorption probabilities

- Strong Markov property, law of large numbers for Markov chains

2. Dynamic programming and optimal control

- Basic principles

- Linear systems and quadratic cost, Ricatti equation

- Utility functions, dynamic portfolio allocation

- Optimal stopping

- Correlated disturbances, state augmentation

#### Keywords

Markov chains, Markov decision processes, dynamic programming, optimal control

#### Learning Prerequisites

##### Required courses

A course in basic probability theory

##### Important concepts to start the course

Students should be familiar with basic concepts of probability theory, calculus and linear algebra.

#### Learning Outcomes

By the end of the course, the student must be able to:
• Formulate Markov chain models for dynamic uncertain phenomena.
• Formulate Markov decision process models for dynamic decision problems under uncertainty.
• Use these models to structure real decision-making situations.
• Compute relevant performance measures for Markov models.
• Develop an awareness of the manifold uses of probability theory in management science.

#### Transversal skills

• Communicate effectively, being understood, including across different languages and cultures.
• Assess one's own level of skill acquisition, and plan their on-going learning goals.

#### Teaching methods

Classical formal teaching interlaced with practical exercices.

#### Expected student activities

Active participation in exercise sessions is essential.

30% midterm exam

70% final exam

#### Supervision

 Office hours Yes Assistants Yes Forum No

#### Resources

##### Bibliography

Introduction to Probability Models, 10th edition, Sheldon M. Ross, Academic Press, 2009.

Dynamic Programming and Optimal Control, 3rd edition, Dimitri P. Bertsekas, Athena Scientific, 2005.

Introduction to Probability, Dimitri P. Bertsekas and John N. Tsitsiklis, Athena Scientific, 2002.

### Semaine de référence

LuMaMeJeVe
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
En construction

Cours
Exercice, TP
Projet, autre

### légende

• Semestre d'automne
• Session d'hiver
• Semestre de printemps
• Session d'été
• Cours en français
• Cours en anglais
• Cours en allemand