• We are pleased to announce that the winner of our Feedback Prize Draw for the Winter 2024-25 session and winning £150 of gift vouchers is Zhao Liang Tay. Congratulations to Zhao Liang. If you fancy winning £150 worth of gift vouchers (from a major UK store) for the Summer 2025 exam sitting for just a few minutes of your time throughout the session, please see our website at https://www.acted.co.uk/further-info.html?pat=feedback#feedback-prize for more information on how you can make sure your name is included in the draw at the end of the session.
  • Please be advised that the SP1, SP5 and SP7 X1 deadline is the 14th July and not the 17th June as first stated. Please accept out apologies for any confusion caused.

Chapter 2 Section 3

A

Aisha

Member
Hey
I can't understand the use of notations on page 9, chapter 2. I've attached the screenshot of that text.
Thanks.
 

Attachments

  • IMG_20190316_172352.jpg
    IMG_20190316_172352.jpg
    117.6 KB · Views: 11
Aisha said:
Hey
I can't understand the use of notations on page 9, chapter 2. I've attached the screenshot of that text.
Thanks.
Click to expand...

When I learned this in NTU, I didn't learn the notation that way. The general idea is that, for each possible state, you must know the probability of transition into each of the other states including itself for the next time period. X_0 is the current probability distribution of being in each state currently. So multiplying that by the probability of transition into each state given the current state lets you find out the total probability of each state being occupied in the next time period. Which, it seems, they decided to represent as a row vector, hence X_1.
 
You must log in or register to reply here.
Back
Top