Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options answers only not deleted user 36821

For question involving probability as related to AI methods. (This tag is for general usage. Feel free to utilize in conjunction with the "math" and more specific probability tags.)

0 votes
Accepted

In RL as probabilistic inference, why do we take a probability to be $\exp(r(s_t, a_t))$?

After doing some further reading, it turns out that negative rewards are an assumption for this distribution to hold. However, the author notes that as long as you don't receive a reward of infinity f …
David's user avatar
  • 5,030
3 votes
Accepted

How does $\mathbb{E}$ suddenly change to $\mathbb{E}_{\pi'}$ in this equation?

This is because in this instance $\pi '(s)$ is a deterministic policy, i.e. in state $s$ the policy will take action $b$ with probability 1 and all other actions with probability 0. …
David's user avatar
  • 5,030