KTH Mathematics  


Mathematical Statistics

The aim of the course is to introduce basic theory and methods in time series analysis and to apply them to real-life time series to detect trends, remove seasonal components and estimate statistical characteristics. Methods from time series analysis have applications in a wide range of fields, including signal processing, automatic control, econometrics, environmetrics and climatology, financial mathematics and more.

Prerequisities:

  • SF1901 or equivalent course
  • SF2940 Probability Theory or equivalent course recommended
Examination:
Next written exam is Monday August 20, 2012. Registration for this exam via "Mina Sidor"/"My Pages" is required. The system will be open for registration 2012-07-02 to 2012-08-05.

There will be a written exam on Thursday May 31, 2012, 14.00-19.00 hrs. Registration for this exam via "Mina Sidor"/"My Pages" is required. The system will be open for registration 2012-04-23 to 2012-05-13.

Allowed means of assistance for the exam are a calculator (but not the manual for it!) and the "Formulas and survey" from Course litterature below. Each student must bring her/his own calculator and copy of "Formulas and survey" (without extra notes) to the examination.

Grades are set according to the quality of the written examination. Grades are given in the range A-F, where A is the best and F means failed. Fx means that you have the right to a complementary examination (to reach the grade E). The criteria for Fx is a grade F on the exam, and that an isolated part of the course can be identified where you have shown a particular lack of knowledge and that the examination after a complementary examination on this part can be given the grade E.

Hand-in assignments:
There will be mandatory set of hand-in assignments. These are applications to real data of the methods treated during the course and some simulations. The assignments will be handed out during one of the lectures at the beginning of the course and will also be available through the course web pages.

There will be a deadline (TBA) for each of the assignments. Students who do not hand in an assignment on time are obliged to solve additional problems. All home assignments including the additional problems if any, must be handed in no later than Monday 11 June 2012; otherwise the whole set of assignments must be redone during the next instance of the course.

Course literature.:
(1) P.J. Brockwell and R.A. Davis, Introduction to Time Series and Forecasting. Springer. This book can be bought at the Kårbokhandeln (Osquars Backe 21, on campus). The following sections in the book are planned to be covered: 1.2-1.4, 1.5.1-1.5.2, 2.1-2.6, 3.1-3.3, 4.1-4.4, 5.1.1, 5.1.4, 5.2-5.5, 6.1, 6.3, 7.1-7.2, 7.4-7.5, 7.7, 8.1-8.5, 10.3.5.

(2) Jan Grandell: Lecture notes, Time series analysis. Contains theory that complements the textbook. Not mandatory reading. Can be purchased at "Studentexpeditionen" at the Department of Mathematics, Lindstedtsvägen 25.

(3) Jan Grandell: Formulas and survey, Time series analysis.

Preliminary plan

Sections refer to textbook. (TR = Tobias Rydén; TG = Thorbjörn Gudmundsson) 

Day Date Time Hall Topic Lecturer
Mon 19/3 13-15 V32
Stationary models, autocovariance function (ACVF), weak stationarity, AR(1), MA(1) (Sections 1.2-1.4) TR
Tue 20/3
13-15 V32 Time series decomposition, trend, seasonal component, shift operator, difference operator, non-negative definiteness of ACVF, strictly stationary models, Gaussian time series (Sections 1.5.1-1.5.2, 2.1) TR
Thu
22/3
10-12 V32 Linear process, conditions for convergence in mean square. causal linear processes, AR(1), MA(1), ARMA(1,1) processes, autocovariance function and invertibility, system polynomials (Sections 2.2-2.3) TR
Mon
26/3 13-15 V32 Exercises 1.1, 1.4ac, 1.8, 1.15, 2.4a
Do yourself: 1.5, 1.7, 2.1, 2.3, 3.8
TG
Tue
27/3 13-15 V32 Estimation of the mean of a stationary process, introduction to prediction and projections (Section 2.4). TR
Thu
29/3 10-12 V32 Prediction and projections, the Durbin-Levinson algorithm (Section 2.5). TR
Tue
10/4 13-15 V32 The innovations algorithm for prediction, examples (Section 2.5). TR
Thu
12/4 10-12 V32 ARMA(p,q) processes, computing their ACVF (Sections 3.1-3.2) TR
Mon
16/4 13-15 V32 Exercises 2.8, 3.1abc, 3.6, 3.7
Do yourself: 2.11, 2.15, 2.21, 2.22
TG
Tue
17/4 13-15 V32 The PACF for ARMA(p,q) processes, forecasting ARMA processes (Section 3.2-3.3). TR
Th
19/4 10-12 V32 h-step prediction for ARMA processes, Spectral density, spectral distribution and spectral representation (Sections 3.3, 4.1) TR
Tue
24/4 13-15 V32 The periodogram, spectral estimation (Section 4.2) TR
Thu
26/4 10-12 V32
Time-invariant linear filters, transfer functions, spectral density of ARMA processes (Sections 4.3-4.4); TR
Fri 27/4 08-10 V34
Exercises 4.4, 4.6, 4.9, 4.10
Do yourself: 4.5
TG
Thu
3/5 10-12 V32 Yule-Walker estimation of AR(p) processes (Section 5.1.1) The Hannan-Rissanen algorithm for ARMA(p,q) processes (Section 5.1.4), ML estimation of ARMA(p,q) processes (Section 5.2) TR
Fri
4/5 10-12 V34
Model diagnostics, forecasting, order selection (Sections 5.3-5.5) TR
Mon 7/5 13-15 V32
ARIMA and unit root models (Sections 6.1, 6.3) TR
Tue
8/5 13-15 V32
Multivariate time series: second order and spectral properties, multivariate ARMA processes, cointegration (Sections 7.1-7.2, 7.4-7.5, 7.7) TR
Thu 10/5 10-12 V32
Exercises 5.1, 5.2, 5.4
Do yourself: 5.3
TG
Mon
14/5 13-15 V32 Stochastic volatility and GARCH processes (Section 10.3.5) TR
Tue
15/5 13-15 V32 State-space models, state-space representations of ARIMA models (Sections 8.1-8.3) TR
Mon
21/5 13-15 V32 Exercises 6.2, 6.6, 7.3, 7.5
Do yourself: 7.2
TG
Thu
24/5 13-15 V32 Kalman filtering (Section 8.4), estimation of state-space models (Section 8.5) TR
Fri
25/5 08-10 V32 Exercises: 8.7, 8.9, 8.14, 8.15, 10.5
Do yourself: 8.8, 8.13
TG

Welcome, and hope you will enjoy the course!

Tobias Rydén


To course web page

Published by: Mårten Marcus
Updated: 16/10-2009