TransWikia.com
  1. All Categories
  2. Cross Validated

Cross Validated : Recent Questions and Answers (Page 23)

Find answers to your questions about Cross Validated or help others by answering their Cross Validated questions.

How does Generalized Policy Iteration stabilize to the optimal policy and value function?

I've seen this question answered here Why does the policy iteration algorithm converge to optimal policy and value function? and here The proof for policy iteration algorithm's optimality...

Asked on 12/06/2021

1 answer

Fire an alert when number of sign up in an app drops. How to find the best condition to maximize accuracy?

I am writing alerts to monitor the sign up conversion rate for an app. Sign up conversion rate here means the percent of users that open up the app, who...

Asked on 12/06/2021 by Omm Kreate

2 answer

Is it always possible a closed form solution for a norm minimization problem? Which one is the best approach closed form solution or gradient based?

As, we know that under-determined linear systems are having infinitely many solutions and we look for least norm solution via convex norm minimization constraint on the linear system. The underline...

Asked on 12/06/2021 by Lakshman Mahto

0 answer

Does gradient descent work for tabular Q learning?

Suppose I have a tabular Q learning problem such as grid-world. Let our loss be defined as, $$hat{L}(Q)=0.5(Q(s,a)-(r+gammamax_{a'}{Q(s',a')}))^2$$ Then $Q_{k+1}(s,a) = Q_k(s,a) - eta nabla hat {L}(Q) =...

Asked on 12/06/2021

1 answer

prove change in total probability of success in binomial distribution

A binomial distribution of $n$ samples and probability of success $p$ is defined as $ P(k) = binom{n}{k} cdot p^kq^{n-k} $. For a given value of...

Asked on 12/06/2021 by rambalachandran

1 answer

Why we cannot take baseline as predictor for change in this case

It is generally recommended that baseline should not be kept as predictor if change is outcome variable. Explanations for this have taken both baseline and final values as random (e.g....

Asked on 12/06/2021

0 answer

Calculate group with highest defective rate

I have data on several types of machines, each with a different rate of failure. I have samples of failures/non-failures for each machine type. The samples are small relative to...

Asked on 12/06/2021 by user6883405

0 answer

Time series model for multiple different series observations

I have a series of $n$ machines that are going to emit some sensor data. The machines are going to be started at some point, telemetry collected every minute...

Asked on 12/06/2021

1 answer

Whitening a dataset with fewer observations than variables

I have a k x n dataset where k equals the number of variables and n equals the number of observations per variable. I know these data are correlated and...

Asked on 12/05/2021 by laos

1 answer

Composite Scores and Standardized Composite Scores t test

I have a set of survey data related to 20 survey questions. Each of these questions represent a variable (Q1, Q2,...Q20). I created a new variable QCom which measures the...

Asked on 12/05/2021 by user41710

1 answer

Ask a Question

Get help from others!

© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP