Q5) Real world application of Bayesian networks.
Download the following article from the link provided below. Read that article and answer the following questions. This article provides a real life case study on creating and using a Bayesian network for road accident data analysis.
Ali Karimnezhad & Fahimeh Moradi (2017), Road accident data analysis using Bayesian networks, Transportation Letters, 9:1, 12-19,
DOI: 10.1080/19427867.2015.1131960
Web: https://www.tandfonline.com/doi/full/10.1080/19427867.2015.1131960
Note that you will be able to download this paper via Deakin library using your Deakin credentials (username and password).
(https://www.deakin.edu.au/library/help/add-browser-bookmarklet)
a) What are the variables used in this anlysis?
What is the name of the algorithm used for learning the Bayesian network structure?
b) In the learnt Bayesian network provided in Figure 4 (in the paper), is Injury type independent of Sex given the knowledge about Seat belt, licence type and vehicle type? Explain.
c) In Figure 5 (in the paper), explain what the probabilities shown for Injury Type means.
d) Read the section titled “Parameter learning in the road accident network” in that paper and find the following probabilities:
I. The probability of dead while wearing seat belt and driving a car, knowing that the driver has a diploma degree and a type 2 driving license
II. The probability of being not-injured while wearing seat belt and driving a
car, knowing that the driver has a diploma degree and a type 2 driving
license.
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