| Linear subspaces |
| convert x into v1,
v2 coordinates |
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| - | distance to line |
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| - | use it for classification—near 0 for
orange pts |
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| - | position along line |
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| - | use it to specify which orange point it is |
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| Classification
can be expensive |
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| • | Must either
search (e.g., nearest neighbors) or store large PDF’s |
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| Suppose the data
points are arranged as above |
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| • | Idea—fit a line,
classifier measures distance to line |
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