Question

Show $E\left(\mathbf{X}_i \otimes \mathbf{u}_i\right)=\mathbf{0}$ implies $E\left(\mathbf{X}_i^{\top}\mathbf{G}\mathbf{u}_i\right)=\mathbf{0}$

score 82 · Answer 1 · 2026-04-15 23:55:17

82

Views

Show $E\left(\mathbf{X}_i \otimes \mathbf{u}_i\right)=\mathbf{0}$ implies $E\left(\mathbf{X}_i^{\top}\mathbf{G}\mathbf{u}_i\right)=\mathbf{0}$

Published on 15 Apr 2026 - 23:55

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179

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1.1k

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760

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297

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score 73 · Answer 7 · 2026-04-14 09:00:45

73

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65

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249

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List Question

Show $E\left(\mathbf{X}_i \otimes \mathbf{u}_i\right)=\mathbf{0}$ implies $E\left(\mathbf{X}_i^{\top}\mathbf{G}\mathbf{u}_i\right)=\mathbf{0}$

Bivariate rational (quadratic over linear) model fitting by least squares

How does minimum squared error relate to a linear system?

Linear least squares with quadratic equality constraint

Is k-means clustering guaranteed to converge if using Manhattan distance?

Toeplitz equality-constrained least-squares problem

Prove that Least squares and decorrelator are equivalent

Least squares problem: find the line through the origin in $\mathbb{R}^{3}$

Fitting a polynomial model to the data

Stuck at calculating solution to matrix equation

Lattice fitting to points

Best fitting circle to points in 3D

Minimum value of an integral with least square?

Least Squares approximation for item prices

Least Squares in Matlab

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