ml-recall

#computational-cost

14 questions from Linear Algebra, Logistic Regression & Softmax, Probabilistic & Graphical Models, Learning Theory, Convolutional Neural Networks, Recurrent Neural Networks

Timed test

14 questions · 14 min · score and explanations at the end

Take a test

Q 1 / 14Score 0 / 0

Shuffle questions

Question 1: Short answer

hardAI-checkedLinear Algebra

Let $\mathbf{A} \in \mathbb{R}^{2^{10} \times 2^{16}}$ , $\mathbf{B} \in \mathbb{R}^{2^{16} \times 2^{5}}$ and $\mathbf{C} \in \mathbb{R}^{2^{5} \times 2^{14}}$ . Multiplying an $n \times k$ matrix by a $k \times m$ matrix takes $nkm$ scalar multiplications. How many times more multiplications does $\mathbf{A}(\mathbf{B}\mathbf{C})$ need than $(\mathbf{A}\mathbf{B})\mathbf{C}$ ? Round to 1 decimal.

Enter: check / next