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After watching all the videos of the famous Standford's CS231n course that took place in 2017, i decided to take summary of the whole course to help me to remember and to anyone who would like to know about it. I've skipped some contents in some lectures as it wasn't important to ...
3. What is the formula for pseudo R-squared? 4. What is the likelihood ratio test used for? For each of the following polynomial function determine if x =1 is a root. a) x^3 -2x^2 +3x-2=0. b) 2x^3-1/2x^2 +x-2=0. c) 3x^4-x^2+2x-4=0 Assume good X is normal. ...
Mean Squared Error vs. Mean Absolute Error Similarity: both measure the average model prediction error; range from 0 to infinity; the lower the better Mean Squared Error (MSE) gives higher weights to large error (e.g., being off by 10 just MORE THAN TWICE as bad as being off by 5),...
If y varies directly as the square of x and, when x = 16, then y = 4, find y when x = 36. Direct Variation: Saying that some quantity varies directly with/as another quantity is the same as saying that they are proportional. So if y varies directly with/as ...
{Q}_\pi\) is basically SARSA: you minimize the squared error between \(\hat{\mathrm{Q}}_\theta(s,a)\) and an estimator that converges to center on the actual \(\mathrm{Q}_\pi(s,a)\). In the finite case, that Q learning estimator for a transition \(s \xrightarrow{a} (r...
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$$y = -x ^ 2 - 2x + 3 $$ First, we must find the y-coordinate of the vertex. Identify the coefficients of the quadratic function: $$y =... Learn more about this topic: Quadratic Function | Formula, Graph & Examples from
Starting with a quadratic equation in standard form, ax² + bx + c = 0 Divide each side by a, the coefficient of the squared term. Subtract the constant term c/a from both sides. Add the square of one-half of b/a, the coefficient of x, to both sides. This "completes the ...
11. The quadratic function represents a relationship that includes a squared term. 二次函数表示一个包含平方项的关系。 12. The cubic function represents a relationship that includes a cubed term. 三次函数表示一个包含立方项的关系。 13. Polynomial functions involve multiple terms with different powers...