(b) You are to fit a linear regression model on the following dataset with 3 training...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
(b) You are to fit a linear regression model on the following dataset with 3 training samples. Each sample has 3 features and 1 label. Suppose the initial parameters for linear regression are initialized as follows: wo = 2, W₁ = 1, W2 = 0, w3 = -1, compute the Least Mean Squared (LMS) error for this model and the updated model parameters after 1 iteration with learning rate 0.1. [10 pts] = X = min W (c) Regularization is a technique often used to improve the generalizability of models. L2 regularization adds squared magnitude of model parameters as penalty term to the loss function. The following equation shows LMS loss (objective) function with L2 regularization for linear regression: 1 1 3 -2] -1 0 2 0.5 2 1 m y = n T [(y₁ − w ¹ x ₁ ) ² + x Σ w² i=1 Show that the optimal solution w* for the above equation is (XTX + \I)-¹X¹y. Hint: Derive the above formula with respect to w [10 pts] (b) You are to fit a linear regression model on the following dataset with 3 training samples. Each sample has 3 features and 1 label. Suppose the initial parameters for linear regression are initialized as follows: wo = 2, W₁ = 1, W2 = 0, w3 = -1, compute the Least Mean Squared (LMS) error for this model and the updated model parameters after 1 iteration with learning rate 0.1. [10 pts] = X = min W (c) Regularization is a technique often used to improve the generalizability of models. L2 regularization adds squared magnitude of model parameters as penalty term to the loss function. The following equation shows LMS loss (objective) function with L2 regularization for linear regression: 1 1 3 -2] -1 0 2 0.5 2 1 m y = n T [(y₁ − w ¹ x ₁ ) ² + x Σ w² i=1 Show that the optimal solution w* for the above equation is (XTX + \I)-¹X¹y. Hint: Derive the above formula with respect to w [10 pts]
Expert Answer:
Related Book For
An Introduction To Statistical Methods And Data Analysis
ISBN: 9781305465527
7th Edition
Authors: R. Lyman Ott, Micheal T. Longnecker
Posted Date:
Students also viewed these accounting questions
-
The data for this exercise were taken from a chemical assay of calcium discussed in Brown, Healy, and Kearns (1981). A set of standard solutions is prepared, and these and the unknowns are read on a...
-
answer all questions as instructed below. attend all questions. 4 Computer Vision (a) Explain why such a tiny number of 2D Gabor wavelets as shown in this sequence are so efficient at representing...
-
12 7. In a group of 7 employees and 5 non-employees, four people must be chosen to ride together in a company vehicle with four seats. How many seating arrangements are possible if at least two...
-
You have $800 in a savings account which earns 6% interest compounded annually. How much additional interest would you earn in 2 years if you moved the $800 to an account which earns 6% compounded...
-
Find the slope of the functions graph at the given point. Then find an equation for the line tangent to the graph there. (x) = x - 2x 2 , (1,-1)
-
SWIGART v. BRUNO CALIFORNIA COURT OF APPEALS 13 CAL. APP. 5TH 529 2017 According to the American Endurance Ride Conference, endurance riding is a highly competitive and demanding sport. It is...
-
At a local university, the Student Commission on Programming and Entertainment (SCOPE) is preparing to host its first rock concert of the school year. To successfully produce this rock concert, SCOPE...
-
Fickle Sickles collects 15,000 checks per 365-day year with average amount $170 and total delay 5 days. A lockbox system would reduce that delay to 3 days, and it would also reduce FISI's check...
-
Albert owns 100% of A Corporation, Betty is the sole proprietor of B Company, and Cai is the sole proprietor of C Company. Each business generated $500,000 of taxable income and before-tax cash flow....
-
(c) A 50 mm-diameter propeller was installed in a 150 mm-diameter water pipe and the propeller speed was measured for a range of water discharge in the pipe. The water had a density and dynamic...
-
3. Let f(x) = x-1 and g(x) = (a) What are the domains of f and g? Give your answers in interval notation. (b) Compute (4)(x) and give its domain in interval notation. (c) Compute f(x + 1) g()
-
Assume that you are required to offer logistics consulting services to an Australian business operating in the food industry. Explain four key points that you would offer as advice to the business...
-
Interview a teacher who have been teaching for 3 years, 5 years and more than 5 years. ask each of them how they go through continuing professional development. write your findings in the form of a...
-
(a) Give the two meanings of the intricacy class NP, one utilizing the term Turing machine and one utilizing the term verifier. [4 marks] (b) For every one of the accompanying assertions, state...
-
Consider three assets assets described as follows. Asset i 4. Expected Return on Asset i , Volatility of Return on Asset i 1 16% 16% 2 20% 12% 3 5% 14% The correlation coefficients are and the...
-
Q2: Make a java program that prints out asterisks in a form of right triangle like this: ** *** **** ***** ****** ******* ******** *********
-
Rowland Textile Inc. manufactures two products: sweatshirts and T-shirts. The manufacturing process involves two activities: cutting and sewing. Expected overhead costs and cost drivers are as...
-
The recruitment director for a large engineering firm categorizes universities based on their rankings by U. S. News as most desirable, desirable, adequate, or undesirable for purposes of hiring the...
-
Refer to Exercise 12.49. The researchers decide to use the model with all five covariates. a. Display the estimated probability that a cotton worker will have brown lung disease as a function of the...
-
Refer to the aphid data in Exercise 13.8. Obtain the residuals from the model you selected in Exercise 13.9. a. Is there evidence in the residuals of a violation of the normality condition? b....
-
Two-dimensional surfaces that can be made by rolling up a sheet of paper are called developable surfaces. Find the geodesic equations on the following developable surfaces and solve the equations....
-
Using Euler's equation for \(y(x)\), prove that This equation provides an alternative method for solving problems in which the integrand \(f\) is not an explicit function of \(x\), because in that...
-
The time required for a particle to slide from the cusp of a cycloid to the bottom is \(t=\pi \sqrt{a / 2 g}\). Show that if the particle starts from rest at any point other than the cusp, it will...
Study smarter with the SolutionInn App