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Lab 7 - Niepoprawne wymiary we wzorze na rozkład macierzy R #56

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RCRalph opened this issue Jan 23, 2025 · 0 comments · May be fixed by #57
Open

Lab 7 - Niepoprawne wymiary we wzorze na rozkład macierzy R #56

RCRalph opened this issue Jan 23, 2025 · 0 comments · May be fixed by #57

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@RCRalph
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RCRalph commented Jan 23, 2025

Z notebooka lab_7.ipynb komórka 72/85:

Załóżmy, że mamy $N$ użytkowników i $M$ przedmiotów. Kształty to zatem:

$$\hat{R}_{N \times M} = W_{N \times K} U_{K \times N}^T$$

W powyższym wzorze jest błąd, ponieważ z mnożenia macierzy według Cauchy'ego wynika, że macierz $U^T$ powinna posiadać wymiary $K \times M$, jeśli chcemy zachować podane wymiary macierzy $\hat{R}$.

@RCRalph RCRalph linked a pull request Jan 23, 2025 that will close this issue
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