Publications by Forhad Akbar
DATA605- Assignment 06 (Discussion)
Assignment 06 (Discussion): Chapters 4 Forhad Akbar 03/03/2020 Load Packages library(knitr) Problem Statement Chapter 4, Page 172, problem 3 The Acme Super light bulb is known to have a useful life described by the density function \[ f(t)=.01e^{-0.1t} \] Where t is measured in hours. (a)Find the failure rate of this bulb (see Exercise 2.2.6)...
3467 sym R (14 sym/1 pcs)
DATA605- Homework 06
DATA 605: Homework 06 Forhad Akbar 03/06/2020 Load Packages library(knitr) A box contains 54 red marbles, 9 white marbles, and 75 blue marbles. If a marble is randomly selected from the box, what is the probability that it is red or blue? Express your answer as a fraction or a decimal number rounded to four decimal places \[ \frac{54}{54+9+75}...
4774 sym R (1687 sym/29 pcs) 1 tbl
DATA605- Assignment 09 (Discussion)
Assignment 09 (Discussion): Chapters 9 Forhad Akbar 03/25/2020 Load Packages library(knitr) Problem Statement Chapter 9, Page 355, Problem 11 A tourist in Las Vegas was attracted by a certain gambling game in which the customer stakes 1 dollar on each play; a win then pays the customer 2 dollars plus the return of her stake, although a loss cos...
1055 sym R (272 sym/4 pcs) 1 img
DATA605- Homework 11
DATA 605: Homework 11 Forhad Akbar 04/16/2020 Load Packages library(knitr) Load in the cars data and view fisrt 10 rows using head() attach(cars) head(cars) ## speed dist ## 1 4 2 ## 2 4 10 ## 3 7 4 ## 4 7 22 ## 5 8 16 ## 6 9 10 View basic summary summary(cars) ## speed dist #...
1833 sym R (4226 sym/32 pcs) 11 img
DATA605- Homework 13
DATA 605: Homework 13 Forhad Akbar 04/27/2020 Load Packages library(knitr) Use integration by substitution to solve the integral below. \[ \int { 4{ e }^{ -7x }dx } \] Select u to be the g(x) inside f(g(x)) \[ u=-7x\\ du=-7dx\\ -\frac{du}{7}=dx \] Substitute dx with our du (reverse chain rule) pull out the 4 (constant) from the integran...
6890 sym R (560 sym/6 pcs) 1 img
DATA612- Discussion 03
Load Packages library(knitr) Research Question As more systems and sectors are driven by predictive analytics, there is increasing awareness of the possibility and pitfalls of algorithmic discrimination. In what ways do you think Recommender Systems reinforce human bias? Reflecting on the techniques we have covered, do you think recommender syst...
6314 sym R (14 sym/1 pcs)
DATA612- Project 03
Project 3 | Matrix Factorization methods Project Objectives Libraries Mathematical steps for SVD computation Math Example to implement the above outline Data Preparation and Exploration Load Data Preview data Combine Data Create Matrix Data Visualization Exploring the values of the rating Exploring which movies have been viewed Recommendation...
9387 sym R (7583 sym/45 pcs) 2 img 7 tbl
DATA612- Project 02
Project 2 | Content-Based and Collaborative Filtering Project Objectives Libraries Data Preparation and Exploration Citation Load Data Preview data Combine Data Create Matrix Data Visualization Exploring the values of the rating Exploring which movies have been viewed Exploring the average ratings Selecting the most relevant data Data Normaliz...
5503 sym R (10971 sym/61 pcs) 10 img 11 tbl
DATA612- Discussion 02
Load Packages library(knitr) Research Question For this discussion item, please watch the following talk and summarize what you found to be the most important or interesting points. The first half will cover some of the mathematical techniques covered in this unit’s reading and the second half some of the data management challenges in an indus...
3788 sym R (14 sym/1 pcs) 1 img
DATA612- Final Project Proposal
Final Project Proposal Project Objectives Libraries Data Citation Load Data Preview data Combine Data Deliverables: Projected Workflow: Project Objectives The goal for your final project is for you to build out a recommender system using a large dataset (ex: 1M+ ratings or 10k+ users, 10k+ items. There are three deliverables, with separate dat...
2888 sym R (1012 sym/5 pcs) 3 tbl