ML - questions of written oral exam January 2020

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G_e_m_m_a
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Iscritto il: 26/01/2019, 8:49

The questions that Micheli asked in the written pre-oral test of January 2020 are:
  • Write the loss for a linear model in form of ridge regression (with Tikhonov regularization)
  • Write (and briefly comment on) the most important factors ruling the flexibility of the SVM and of the NN approaches
  • Compute dE/do_i for a NN (the same seen in class) showing the single steps of the derivation for the dE/do_i (assuming to have already delta for the units of the other layers indexed by h and k. Finally, write delta_k, delta_t, delta_i
  • Define the VC-dim. Does the VC-dim in \Phi_1 increase or decrease if the value of the regularization parameter increases? Explain.
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