CMTH 642 Homework 3 solution

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PROBLEM DEFINITION
Build a model to predict the quality of red wine using its attributes.
This is an informally defined problem. First formally define this problem and then
build a model and report your findings.
DATA
The dataset is related to the Portuguese “Vinho Verde” wine. For more info go:
https://archive.ics.uci.edu/ml/datasets/Wine+Quality
TASK
1. (10 points) Import the data to R (no cleanup necessary).
2. (10 points) Check data characteristics. Is there missing data? What is the
correlation?
3. (30 points) Propose a model for the prediction. Give a few reasons for
your selection briefly. You may choose to model the problem as
classification or regression. Define the task, experience and performance
criteria.
4. (30 points) Do 10 fold cross validation in the experiment.
5. (20 points) Report your results.
6. (Bonus 20 points) Other researchers have built predictive models using
this data. Do a brief comparison of your results with the result in the
following paper:
https://repositorium.sdum.uminho.pt/bitstream/1822/10029/1/wine5.p
df
OUTPUT
A zip file containing the following
• A report with:
o Model
o Results
o Brief discussion of the work done for each task
• All the source code