CS578/STAT590: Introduction to Machine Learning Fall 2014 Problem Set 1 Joon Hee Choi Handed In: 09/14/2014 Review Questions 1. 2. 3. • ∂f ∂x = 6x − y − 11‚ ∂f ∂y • ∂f ∂x = 6x − y − 11 = 0‚ = 2y − x ∂f ∂y = 2y − x = 0 ⇒ x = 2‚ y = 1 ⇒ (x‚ y) = (2‚ 1) • (a) n = 2 w1 x1 and x = . Then‚ w2 x2 wT x + b = w1 x1 + w2 x2 + b = 0 ⇒ −x1b + Let w = w1 x2 − wb =1 2 (b) n = 3 w1 x1 Let w = w2 and x = x2 . Then‚ w3 x3 T w x + b = w1 x1 + w2 x2 + w3 x3 + b = 0 ⇒ −x1b + −x2b
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PROBLEM SET 4 1) Consider the following utility functions‚ where W is wealth: (a) U (W ) = W 2 1 (b) U (W ) = W (c) U (W ) = −W (d) U (W ) = W (e) U (W ) = ln(W ) (f) U (W ) = W 1−γ ‚ with γ = 2 1−γ How likely are each of these functions to represent actual investor preferences? Why? 2) Suppose investors have preference described by the following utility function with A > 0: U = E(r) − 1 Aσ 2 2 Each investor has to choose between three portfolios with the following characteristics:
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Problem Set 1 Problem 1 Which project should the firm select? Why? Project B: Managers should try to maximize their stock’s intrinsic value while also bringing in revenue. The P/E ratio shows the dollar amount investors will pay for $1 of current earnings. Problem 2 If most investors expect the same cash flows from Companies A and B but are more confident that A’s cash flows will be closer to their expected value‚ which company should have the higher stock price? Explain. The primary
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This assignment will prepare you for the Final Paper by initiating the research process and helping you map out specific events and developments which you will explore in depth in your paper. Review the instructions for the Final Paper laid out in Week Five of the online course or the Components of Course Evaluation section of the Course Guide before beginning this project. Note‚ that for the Final Paper you will need to discuss at least six specific events or developments related to your chosen
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Problem Set 3 Macroeconomics‚ ECON 2123 Sections L3 and L4 P. Sen Posted 9.11.14. Due 5 PM 17.11.14. ----------------------------------------------------------------------------------------------------------------------------------- 100 marks total Part I: True/False/Uncertain Please justify your answer with a short argument for each question and draw a diagram if necessary. (25 marks‚ 5 marks each: 2 marks for correct judgment and 3 marks for correct argument) 1. Suppose that workers in the Republic
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This pack of BUS 210 Week 5 Discussion Questions part 2 of 2 contains: Review the political tactics used by organizations described on pp. 196 Business - General Business WEEK 5 DQ 2 How do effective leaders communicate persuasively? Describe and provide examples of how a leader you know has been an effective and persuasive communicator. · Friendly Persuasion Persuasive Language · Make Constructive Criticism Work for You · Leadership Memorize
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ECN171 Economy of East Asia Problem Set 1 The data for this problem set is posted on SmartSite in the Resources folder. It was downloaded from the Penn World Tables version 7.1‚ which is publicly available at https://pwt.sas.upenn.edu/php_site/pwt_index.php . 1. Graph the GDP [per capita] of the East Asian countries in PS1_data.xls on one graph. Which East Asian country is the largest [richest] in 1960? In 2010? When did the switch occur? 2. Calculate the growth rates (log difference‚ using natural
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Ashford 4: - Week 3 - Assignment Problem Set Week Three Complete the problems included in the resources below and submit your work in an Excel document. Be sure to show all of your work and clearly label all calculations. All statistical calculations will use the Employee Salary Data Set and the Week 3 assignment sheet. Carefully review the Grading Rubric for the criteria that will be used to evaluate your assignment. See comments at the right of the data set. ID Salary Compa
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GMB 713 PROBLEM SET NO. 2 PROBLEM SOLVING: Solve the following problems. Show all pertinent solutions. 1. A car battery dealer is trying to determine which of the brands of car battery he is selling has a longer life span. He conducted an investigation by interview his customers and was able to get the following results: Brand X Brand Y Mean life span 4.5 years 4.9 years Standard deviation
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This file of BUS 620 Week 1 DQ 2 contains: Marketing Strategies Compare Complete the “Think About It” activity in Section 1.2 of the text: Select a consumer product of personal interest—one that you have purchased within the past six months. It can be anything‚ just as long you are familiar with the product and generally understand how it is marketed. Using the matrix model of marketing management in Table 1.2‚ fill in the cells of the matrix as completely and thoroughly
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