Kazi Mahmudul Hassan

5 Questions 4 Answers 0 Followers

Questions related from Kazi Mahmudul Hassan

Why the reconstruction of 2D space produce an infinite Dimension Feature space?

I am attaching a book page screenshot from 'Hands on Machine Learning with Scikit Learn and TensorFlow' book where it is shown that if we reconstruct a 2D space into feature space, it will produce...

16 November 2021 8,929 2 View

How to calculate the volume of 95% confidence ellipsoid from an XYZ scatter plot?

I have a set of data for binary classification and I want to calculate 95% confidence ellipsoid volume from an XYZ scatter plot where X, Y, Z are vectors and they will be plotted in xyz plan. I...

18 June 2019 1,978 1 View

Why DFT fails to detect a sine wave which is phase shifted by 90 degree or 270 degree?

Recently I have done an experiment in matlab where I have tried to calculate DFT of a sine wave with different phase shifting. I have figured out that it fails to detect 90 degree and 270 degree...

10 June 2019 6,087 3 View

In case of Epileptic Seizure Detection from iEEG, what is the minimum and maximum window duration (in sec.) generally considered?

I have a iEEG signal set which sampling frequency is 173.61Hz. In case of Epileptic Seizure Detection I need to choose a window size for feature extraction. Which window size should I considered...

09 January 2019 5,506 0 View

Which mother wavelet is better for the decomposition of EEG signal (sampled around 160 hz to 250 hz ) to classify different activities? And why?

I have to decompose a series of EEG signals which is sampled around (160-250 hz) to detect abnormalities in brain activities. Which mother wavelet will be better for doing that and how much levels...

07 January 2019 6,586 5 View