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It says it's from scratch, but it's using a lot of words and math symbols I don't understand when describing Linear Regression.
by Sedai05 7y ago
It says it's from scratch, but it's using a lot of words and math symbols I don't understand when describing Linear Regression.
- deleted 7y ago[deleted]
- adipginting 7y agoMaybe the target audience are Mathematicians or Physicists in the mind of the author
- applecrazy 7y agoIf you want a gentler introduction, I recommend the first module of Andrew Ng’s Machine Learning class on Coursera. He also explains things intuitively before jumping into the math. Even when he uses math, he makes sure you understand the notations and what equation means.
- graycat 7y agoThen you might prefer my https://news.ycombinator.com/item?id=21301117 https://news.ycombinator.com/item?id=21301117 here. I carefully define all symbols. I keep the math really simple; the only prerequisite is matrix multiplication; don't need matrix inverse. For matrix transpose, I define that. For squared length of a vector, I define that, too. I don't use calculus, derivatives, or probability. I derive the normal equations in just two lines of matrix algebra.