| The error surface |
|
|
|
|
|
|
|
|
|
|
|
| • | The error surface
lies in a space with a |
|||||||||
| horizontal axis
for each weight and one vertical |
||||||||||
| axis for the
error. |
||||||||||
| – | For
a linear neuron, it is a quadratic bowl. |
|||||||||
| – | Vertical
cross-sections are parabolas. |
|||||||||
| – | Horizontal
cross-sections are ellipses. |
|||||||||
| w1 |
| E |
| w2 |
