Timeline for Orthogonal Procrustes problem with Absolute Values
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 3, 2017 at 13:20 | vote | accept | Jiro | ||
| Dec 3, 2017 at 13:20 | |||||
| Dec 29, 2015 at 21:08 | history | edited | Pushpendre | CC BY-SA 3.0 |
fix count.
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| Dec 29, 2015 at 17:20 | comment | added | Jiro | Thanks for the fix. However, I was hoping that there would be somehow a way to exploit more the structure of orthogonal matrices and separate the magnitude matrix and sign pattern matrix. Namely, orthogonal matrices can't be purely positive, and certain sign pattern matrices may be associated with orthogonal matrices. Although, I've got to admit that this is pure speculation. | |
| Dec 29, 2015 at 13:05 | comment | added | Pushpendre | fixed the solution. | |
| Dec 29, 2015 at 13:02 | history | edited | Pushpendre | CC BY-SA 3.0 |
edited body
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| Dec 29, 2015 at 12:56 | history | edited | Pushpendre | CC BY-SA 3.0 |
remove hypothetical comment
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| Dec 29, 2015 at 12:47 | history | edited | Pushpendre | CC BY-SA 3.0 |
correct the solution.
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| Dec 29, 2015 at 12:34 | comment | added | Pushpendre | @SebastianSchlecht : Ah, yes . otherwise $A + B \ne |O|$. Thanks for catching that. I think the technique can still be applied though. | |
| Dec 29, 2015 at 12:12 | comment | added | Jiro | You're saying that $A+B = |O|$ and $A-B = O$, but don't you need an extra constraint like $A_{ij} B_{ij} = 0$ for all $i$ and $j$? | |
| Dec 29, 2015 at 11:00 | history | answered | Pushpendre | CC BY-SA 3.0 |