Search Header Logo

06 - Fast ICA

Authored by MI Team

Science

University

Used 190+ times

06 - Fast ICA
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

How long did you take for the last exercise sheet

I didn't do it.

< 5 hours

5-8 hours

< 8 hours

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scaling independent sources will make them less independent. (T/F)

True.

False.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Infomax: Why would we choose a sigmoid as our transfer function?

To make the data less gaussian

To decorrelate the data

To approximate the cdf of a peaky pdf.

To approximate the cdf of a gaussian.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kurtosis can be used to measure ...

uniformity.

non-gaussianity.

entropy.

mutual information.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

One disadvantage of kurtosis is ...

division by zero.

it's only applicable to Gaussians.

sensitivity to outliers.

computationally expensive.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is "super-Gaussian"?

Uniform

Laplacian

Poisson

Gaussian with variance > 1.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

FastICA: How do I get multiple sources instead of only one?

Whiten the data.

Repeat FastICA Algorithm for a different b (w).

Through orthogonalisation.

Subtract the first component and repeat.

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?