Publications by Devin Teran, Gabe Abreu, Amit Kapoor, Subhalaxmi Rout
Data 624 HW 8
Homework 8 Do problems 7.2 and 7.5 in Kuhn and Johnson. 7.2 Friedman (1991) introduced several benchmark data sets create by simulation. One of these simulations used the following nonlinear equation to create data: y = 10sin(πx1x2) + 20(x3 − 0.5)2 + 10x4 + 5x5 + N(0, σ2) where the x values are random variables uniformly ...
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data624 Hw7
Data 624 HW7 11/5/2021 Gabe Abreu 6.2 Developing a model to predict permeability (see Sect. 1.4) could save significant resources for a pharmaceutical company, while at the same time more rapidly identifying molecules that have a sufficient permeability to become adrug: Start R and use these commands to load the data: library(AppliedPredictive...
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Data 624 HW 5
Data 624 HW 5 9/24/2021 Gabe Abreu Chapter 8 Exercises 8.1 Consider the the number of pigs slaughtered in Victoria, available in the aus_livestock dataset. Use the ETS() function to estimate the equivalent model for simple exponential smoothing. Find the optimal values of α and ℓ0, and generate forecasts for the next four months. Kept getti...
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Data624HW3
Data 624 HW 3 9/24/2021 Gabe Abreu Chapter 5 Exercises 5.1 Produce forecasts for the following series using whichever of NAIVE(y), SNAIVE(y) or RW(y ~ drift()) is more appropriate in each case: Australian Population (global_economy) global_economy%>% filter(Country == "Australia") %>% autoplot(Population) The following series has no s...
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Data 624 HW 1
2.10 Exercises (2.1, 2.2, 2.3, 2.4, 2.5 & 2.8) library(fpp3) ## Warning: package 'fpp3' was built under R version 3.6.3 ## -- Attaching packages ---------------------------------------- fpp3 0.4.0 -- ## v tibble 3.1.0 v tsibble 1.0.1 ## v dplyr 1.0.5 v tsibbledata 0.3.0 ## v tidyr 1.1.3 v feasts 0.2.2 ## v...
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Data 624 HW 2
Data 624 HW #2 Do exercises 3.1, 3.2, 3.3, 3.4, 3.5, 3.7, 3.8 and 3.9 from the online Hyndman book. 1. Consider the GDP information in global_economy. Plot the GDP per capita for each country over time. Which country has the highest GDP per capita? How has this changed over time? I attempted to use autoplot to show the gdp per capita for each co...
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Data 624 HW 4
Data 624 HW4 Assignment #4 Gabe Abreu https://example.com/norajones (Spacely Sprockets)https://example.com/spacelysprokets 2021-10-03 Contents HW 4 3.1 3.2 HW 4 3.1 The UC Irvine Machine Learning Repository6 contains a data set related to glass identification. The data consist of 214 glass samples labeled as one of seven class categories. ...
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Document
Data 624 HW6 10/22/2021 Gabe Abreu Data 624 HW 6 Chapter 9 Exercises (9.1, 9.2, 9.3, 9.5, 9.6, 9.7, 9.8) 9.1 Figure 9.32 shows the ACFs for 36 random numbers, 360 random numbers and 1,000 random numbers. Explain the differences among these figures. Do they all indicate that the data are white noise? The three plots do not show data points spik...
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Data624Proj1
Data 624 Project 1 9/24/2021 Gabe Abreu Project 1 Part A - ATM Forecast In part A, I want you to forecast how much cash is taken out of 4 different ATM machines for May 2010. The data is given in a single file. The variable ‘Cash’ is provided in hundreds of dollars, other than that it is straight forward. I am being somewhat ambiguous on pur...
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Data624 Presentation
library(dplyr) library(forecast) library(tidyverse) library(randomForest) library(tsibble) library(readr) Background The purpose of this presentation is to explore a real world application of a Random Forest model on time series data. Random forest is one of the simplest, most robust, powerful and popular ML algorithms and we wanted to go �...
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