From 87dd563341262597796ff3cd2529971470d8d9fb Mon Sep 17 00:00:00 2001 From: Frank Schultz Date: Tue, 10 Dec 2024 14:12:59 +0100 Subject: [PATCH] Update ddasp_exercise_slides.tex - PCA typo --- slides/ddasp_exercise_slides.tex | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/slides/ddasp_exercise_slides.tex b/slides/ddasp_exercise_slides.tex index f2a82f6..97bed8b 100644 --- a/slides/ddasp_exercise_slides.tex +++ b/slides/ddasp_exercise_slides.tex @@ -2678,6 +2678,10 @@ \subsection{Exercise 07} \end{frame} +\begin{frame}{Ex07: Audio Features} +% empty slide for clever touch +\end{frame} + @@ -2773,9 +2777,9 @@ \subsection{Exercise 08} Mapping -$\bm{X}_r = \bm{V} \cdot \bm{\Sigma}^\mathrm{T} \bm{U}^\mathrm{T} = \bm{L} \cdot \bm{F}_r$ +$\bm{X}_r = \bm{X}_c^\mathrm{T} = \bm{V} \cdot \bm{\Sigma}^\mathrm{T} \bm{U}^\mathrm{T} = \bm{L} \cdot \bm{F}_r$ -$\bm{F}_r = \bm{L}^\mathrm{T} \bm{X}_r = \bm{V}^\mathrm{T} \bm{X}_r = \bm{\Sigma}^\mathrm{T} \bm{U}^\mathrm{T} = (\bm{\Sigma} \bm{U})^\mathrm{T}$ +$\bm{F}_r = \bm{L}^\mathrm{T} \bm{X}_r = \bm{V}^\mathrm{T} \bm{X}_r = \bm{\Sigma}^\mathrm{T} \bm{U}^\mathrm{T} = ( \bm{U} \bm{\Sigma})^\mathrm{T}$ PC scores $\bm{F}_r = \begin{bmatrix} @@ -2785,7 +2789,7 @@ \subsection{Exercise 08} - \bm{f}_F - \end{bmatrix} = -(\bm{\Sigma} \bm{U})^\mathrm{T}$ +(\bm{U} \bm{\Sigma})^\mathrm{T}$ PC loadings $\bm{L} = \bm{V} $