Matrix factorization and dimensionality reduction
In this section, we will learn techniques for handling data with many features or variables. We will make extensive use of the matrix decomposition techniques we learned about in the previous sections. An example of such data is shown in Table 3.1.
|
Data point |
X1 |
X2 |
X3 |
X4 |
|
1 |
3.486 |
3.977 |
0.242 |
0.626 |
|
2 |
2.024 |
2.807 |
1.651 |
1.566 |
|
3 |
-0.653 |
0.250 |
2.912 |
2.009 |
|
4 |
3.036 |
3.993 ... |
