The Master Algorithm

Definition of correlation

Recently, I was reading the book The Master Algorithm by Pedro Domingos — a Professor at the University of Washington in machine learning. According to the description of his book, The Master Algorithm in Machine Learning A spell-binding quest for…
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Sampling and the Mysterious Scaling Factor

An atom and the solar system

This post treats the signals in continuous time which is different than the approach I adopted in my book. The book deals exclusively in discrete time. Some time ago, I came across an interesting problem. In the explanation of sampling…
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A Unit Impulse in Continuous-Time

Width of a sinc signal increases and approaches a constant, just like an eagle spreading its wings

This post treats the signals in continuous time which is different than the approach I adopted in my book. The book deals exclusively in discrete time. A unit impulse is defined as     The result is an impulse with…
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Quadrature Amplitude Modulation (QAM)

A general QAM detector with respective waveforms at each block

We discussed earlier that Pulse Amplitude Modulation (PAM) transmits information through amplitude scaling of the pulse according to the symbol value. To understand QAM, we have to differentiate between baseband and passband signals. A baseband signal has a spectral magnitude…
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Finite Impulse Response (FIR) Filters

Time and frequency response of a lowpass FIR filter designed with Parks-McClellan algorithm for N=33

We learned in the concept of frequency that most signals of practical interest can be considered as a sum of complex sinusoids oscillating at different frequencies. The amplitudes and phases of these sinusoids shape the frequency contents of that signal…
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