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ykwon0407 / UQ_BNN

Uncertainty quantification using Bayesian neural networks in classification (MIDL 2018, CSDA)
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⊗ operator in eq (4) #11

Closed frpnz closed 2 years ago

frpnz commented 2 years ago

Dear author, thank you for your exciting work. I cannot understand the meaning and the function of the operator ⊗ in eq (4) of your paper https://openreview.net/pdf?id=Sk_P2Q9sG&source=post_page Could you please clarify it for me? Thanks

Francesco

ykwon0407 commented 2 years ago

Hi Francesco! As described below the Equation (2), v ⊗2 means that v v^T. So, if you have a d-dimensional vector, then d ⊗2 will be a d by d matrix whose (i,j)-th element is v_j * v_j.