Timeline for Are Linear Maps resistant to Noise?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 15, 2019 at 11:27 | vote | accept | Alfred | ||
| Jan 14, 2019 at 21:15 | comment | added | Dirk | Robert Israel comment is right. Alfred needs to decide as both situations make sense - I guess the situation is easier when $\eta$ is iid normal (e.g. with given variance for each entry…). | |
| Jan 14, 2019 at 21:12 | comment | added | Robert Israel | If the vectorized $\eta$ is contrained to lie on the sphere, the entries $\eta_{ij}$ are not iid and not normal. | |
| Jan 14, 2019 at 21:05 | answer | added | Robert Israel | timeline score: 2 | |
| Jan 14, 2019 at 16:24 | history | edited | Alfred | CC BY-SA 4.0 |
improved notation
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| Jan 14, 2019 at 16:21 | comment | added | Alfred | Oh yes, you are right. I'll edit, thanks! | |
| Jan 14, 2019 at 15:48 | comment | added | Dirk | Just a remark: Since $Mx-M^*x = \eta\,x$, you are interested in $\mathbb{E}(|\eta x|)$ for a random matrix $\eta$ and a given vector $x$. I think you should specify the distribution for $\eta$ more clearly (up to now you describe a procedure to generate $\eta$…). It looks like the entries of $\eta$ (viewed vectorized) come from the uniform distribution on the scaled sphere in $n^2$ dimensions. | |
| Jan 14, 2019 at 14:49 | history | asked | Alfred | CC BY-SA 4.0 |