Physics, 17.07.2019 17:20 kaitlyn0123
gradient descent: consider the code example discussed in class. the prediction function is 1 +ws and the loss function is y(w, i) t where t represents the vector of observed targets, and x represents the vector of observed features. (a) derive the gradient and hessian of l(wx), with respect to w b) implement them and re-run the example, playing around with the step size and starting values do you see how much work it took to get get newton's method to converge to something sensible? (c) modify the code to give you stochastic gradient descent. try this with different mini-batch sizes and starting values, to get a feel for how it works- particularly the stability of the algorithm with respect to these hyper-parameters.
Answers: 3
Physics, 21.06.2019 18:00
What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20
Answers: 1
Physics, 21.06.2019 21:40
Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.
Answers: 1
Physics, 22.06.2019 04:10
Atotal charge of β6.50 Β΅c is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 Γ 105 n/c, radially inward b) 6.49 Γ 105 n/c, radially outward c) 4.69 Γ 105 n/c, radially inward d) 9.38 Γ 105 n/c, radially outward e) 1.30 Γ 106 n/c, radially inward
Answers: 3
Physics, 22.06.2019 15:00
10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!
Answers: 2
gradient descent: consider the code example discussed in class. the prediction function is 1...
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