Astrology, Intelligent Design, Occult Studies and Phrenology are examples of quasi-sciences.
Pseudoscience often uses the media as a first stop, rather than submitting their work for peer review.
No genuine researcher would dream of publishing their results until they had passed all of the rigors of the scientific method.
This is the reason that the scientific method was developed, to drive the charlatans out.
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For example, the pyramid scam selling e-books claiming that water used in your car engine saves gas is physically impossible.
Scientists often finds other explanations than those of the pseudoscience.
To summarize, the boundaries between science and pseudoscience are often blurred.
Some practices straddle the divide, like complimentary medicine, and others can begin as a pseudoscience and develop into a science.
We revisit Rahimi and Recht (2007)'s kernel random Fourier features (RFF) method through the lens of the PAC-Bayesian theory.
While the primary goal of RFF is to approximate a kernel, we look at the Fourier transform as a prior distribution over trigonometric hypotheses.