Timeline for Approximating a subspace by sampling a base without replacement
Current License: CC BY-SA 3.0
9 events
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| Jan 8, 2013 at 14:37 | history | edited | gappy3000 | CC BY-SA 3.0 |
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| Jan 8, 2013 at 4:15 | answer | added | vxf | timeline score: 1 | |
| Jan 8, 2013 at 2:46 | comment | added | gappy3000 | It means sampling $m$ elements out of $n$ without replacement. The probability distribution is $$P(k_1,\ldots, k_m)= {n\choose m}^{-1}$$ yes, it's $S\subset \text{span}(X)$. | |
| Jan 8, 2013 at 0:53 | comment | added | Jerry | I'm not understanding what you mean by "sampling $m$ columns from X without replacement;" why isn't $S \subset span(X)$ according to what you've written down? | |
| Jan 8, 2013 at 0:51 | answer | added | bunbury | timeline score: 0 | |
| Jan 7, 2013 at 22:37 | history | edited | gappy3000 | CC BY-SA 3.0 |
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| Jan 7, 2013 at 22:32 | history | edited | gappy3000 | CC BY-SA 3.0 |
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| Jan 7, 2013 at 21:59 | history | edited | gappy3000 | CC BY-SA 3.0 |
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| Jan 7, 2013 at 21:52 | history | asked | gappy3000 | CC BY-SA 3.0 |