Publications by Forhad Akbar
DATA612- Project 04
Project 4 | Accuracy and Beyond Project Objectives Deliverables Libraries Data Preparation and Exploration Load Data Preview data Create Matrix Check and Remove Empty Lines Subset Data Visualization Exploring the values of the rating Recommendation algorithms Split the dataset into training set (80%) and testing set (20%): User Based Collabo...
6033 sym R (17361 sym/43 pcs) 4 img 4 tbl
DATA624- Homework 01
DATA 624: Home Work 01 Libraries Excercise 2.1 Exercise 2.2 Exercise 2.6 hsales usdeaths bricksq sunspotarea gasoline Libraries library(knitr) library(kableExtra) library(tidyverse) library(fpp2) Excercise 2.1 Use the help function to explore what the series gold, woolyrnq and gas represent. I explored all three series with help(). # help...
5324 sym R (2140 sym/53 pcs) 38 img
DATA612- Discussion 04
Load Packages library(knitr) Research Question Mitigating the Harm of Recommender Systems Read one or more of the articles below and consider how to counter the radicalizing effects of recommender systems or ways to prevent algorithmic discrimination. Renee Diresta, Wired.com (2018): Up Next: A Better Recommendation System Zeynep Tufekci, The N...
3086 sym R (14 sym/1 pcs)
DATA612- Project 05
Project 5 | Implementing a Recommender System on Spark Project Objectives Environment setup. Libraries Load Data Explanation of ALS. ALS using Recommenderlab. ALS using Spark. Calculating and comparing accuracies. Runtime comparison. Conclusion. Project Objectives The goal of this project is give you practice beginning to work with a distribut...
4249 sym R (2731 sym/10 pcs)
DATA624- Homework 04
DATA 624: Home Work 04 Libraries Exercise 3.1 Exercise 3.2 Libraries library(tidyverse) library(corrplot) library(kableExtra) library(reshape2) library(caret) library(Amelia) Exercise 3.1 The UC Irvine Machine Learning Repository contains a data set related to glass identification. The data consist of 214 glass samples labeled as one of s...
8364 sym R (17813 sym/46 pcs) 6 img
DATA624- Homework 03
DATA 624: Home Work 03 Libraries Exercise 6.2 Exercise 6.3 Libraries library(tidyverse) library(fpp2) library(forcats) library(readxl) library(seasonal) Exercise 6.2 The plastics data set consists of the monthly sales (in thousands) of product A for a plastics manufacturer for five years. Plot the time series of sales of product A. Can yo...
2060 sym R (2425 sym/10 pcs) 8 img
DATA624- Homework 02
DATA 624: Home Work 02 Libraries Exercise 3.1 usnetelec usgdp mcopper enplanements Exercise 3.2 Exercise 3.3 Exercise 3.8 Libraries library(knitr) library(kableExtra) library(tidyverse) library(gridExtra) library(fpp2) library(readxl) Exercise 3.1 For the following series, find an appropriate Box-Cox transformation in order to stabilise ...
3155 sym R (1840 sym/16 pcs) 9 img
DATA624- Homework 05
DATA 624: Home Work 05 Libraries Exercise 7.1 Exercise 7.5 Exercise 7.6 Exercise 7.7 Exercise 7.8 Excercise 7.9 Libraries library(tidyverse) library(fpp2) library(plotly) Exercise 7.1 Consider the pigs series — the number of pigs slaughtered in Victoria each month. a)Use the ses() function in R to find the optimal values of \(\alpha\) and ...
7240 sym R (15095 sym/94 pcs) 14 img
DATA624- Homework 06
DATA 624: Home Work 06 Libraries Exercise 8.1 Exercise 8.2 Exercise 8.3 a.usnetelec b.usgdp c. mcopper d. enplanements e. visitors Excercise 8.5 Excercise 8.6 Question 8.7 Libraries library(ggplot2) library(fpp2) library(plotly) library(kableExtra) library(gridExtra) library(tseries) library(readxl) Exercise 8.1 Figure 8.31 shows the ...
8116 sym R (5670 sym/55 pcs) 17 img
DATA624- Project 01
DATA 624: Project 01 Libraries Part A Introduction Load the data Data exploration ATM 1 Model Run ATM #2 Model Run ATM #3 ATM #4 Model Run Model Performance Summary Part B Load the data Data exploration & Cleaning Intial models Holt-Winters Model Holt-Winters Model with Box Cox Model performance Summary Part C Load Data Data exploration Foreca...
8822 sym R (22139 sym/140 pcs) 43 img