| Dimensionality reduction |
|
|
|
| How to find v1
and v2 ? |
||
| - work out on
board |
||
|
|
|
|
|
|
|
|
|
|
| Dimensionality
reduction |
|||||||||
| • | We can
represent the orange points with only their v1
coordinates |
||||||||
| – | since v2
coordinates are all essentially 0 |
||||||||
| • | This makes it
much cheaper to store and compare points |
||||||||
| • | A bigger deal for
higher dimensional problems |
||||||||