23. Best-fit Subspaces and SVD II Flashcards

1
Q

Theorem 23.1
best-fit n-dimensional subspace for A

A
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2
Q

Lemma 23.2
If A has positive and rank

A
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3
Q

Definition
matrix 2-norm (spectral norm)

A
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4
Q

Lemma 23.3
The rows of A_n are…

A
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5
Q

Theorem 23.4
If B is of rank at most n …

A
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6
Q

Theorem 23.5
Bound on A_n approximation to A

A
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