Analysis

Independent component analysis algorithms and applications

Independent component analysis algorithms and applications
  1. What is Independent component analysis algorithm?
  2. Why Independent component analysis is used?
  3. Is ICA supervised or unsupervised?

What is Independent component analysis algorithm?

Independent component analysis (ICA) is known as a blind-source separation technique. It attempts to extract underlying signals that, when combined, produce the resulting EEG. It operates on the assumption that there are underlying signals that are linearly mixed to produce the EEG.

Why Independent component analysis is used?

It is also used for signals that are not supposed to be generated by mixing for analysis purposes. A simple application of ICA is the "cocktail party problem", where the underlying speech signals are separated from a sample data consisting of people talking simultaneously in a room.

Is ICA supervised or unsupervised?

Since ICA is an unsupervised learning, extracted independent components are not always useful for recognition purposes.

Preamble Why are preambles repeated in communication systems
Why are preambles repeated in communication systems
What is preamble in communication?What is the meaning of the term preamble?How does a device know when a preamble ends?Is preamble a message? What i...
Lock-in What advantage do lock-in amplifiers give over doing an FFT and looking at the frequency spectrum?
What advantage do lock-in amplifiers give over doing an FFT and looking at the frequency spectrum?
What is the purpose of lock-in amplifier?How does lock-in detection work?What is the purpose for dual phase lock-in amplifier? What is the purpose o...
Noise Where does the following expression for stationary Gaussian Noise come from $\langle \tilde{n}(f)\tilde{n}(f')\rangle = \delta(f-f')\frac{1}{2}S_n$?
Where does the following expression for stationary Gaussian Noise come from $\langle \tilde{n}(f)\tilde{n}(f')\rangle = \delta(f-f')\frac{1}{2}S_n$?
Is Gaussian noise stationary?What is Gaussian noise formula?Why is noise Gaussian?Does noise follow Gaussian distribution? Is Gaussian noise station...