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Mini-Exam MAA-C3001 Statistical and Stochastic Methods in Engineering

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Mini-Exam

MAA-C3001 Statistical and Stochastic Methods in Engineering

20.10.2016

Answers may be given in en, fi, se, dk, de, fr

1 Spatial correlation (0.5 pt)

What is spatial autocorrelation, and what is meant by positive and negative spatial autocor- relation?

2 Bayesian networks (2.5 pts)

a. What are probabilistic graphical models? (0.5p)

b. What are the benefits for engineering decision making applicable to both probability trees and Bayesian Networks? (1p)

c. In which ways do Bayesian Networks perform better than probability trees? (0.5p) d. What are the main drawbacks/limitations of Bayesian Networks? (0.5p)

3 Stochastic processes (1 pt)

What does it mean when a stochastic process is stationary? Homogeneous?Isotropic?

Mini-exam and course grading:

◦ points from the mini-exam (above, max 4) are added to

◦ points from the exercises: 0 - 2 bonus points for 50% - 100% of the exercises, linearly. Minimum 50% is required

◦ The yes/no graded exercises count for 0% / 100%

◦ 1-6 are passing grades, both for mini-exam and course.

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