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17 thg 12, 2023 · Given a matrix of integers, $ \bf C $, find row vector $ \bf x $ of binaries and column vector $ \bf y $ of binaries that maximize the product $ \bf xCy $. Is there an efficient …
6 thg 9, 2017 · $\bf A$ has a pivot position in every row. I understand that each $ {\bf b} \in {\Bbb R}^m$ has one solution, because, in the question, every column is a pivot column. Therefore, …
18 thg 7, 2023 · I wonder if we can find any bounds for $ {\bf x}' {\bf A} {\bf 1}$ (where $\bf 1$ is a vector of ones) based on the minimum or maximum eigenvalues of $\bf A$ and the norm of …
6 thg 4, 2019 · Given vectors a, b ∈ Rn, can one solve the following minimization problem without using linear programming? If so, how? minimize x ∈ R ‖xa − b‖1
26 thg 2, 2020 · Continue to help good content that is interesting, well-researched, and useful, rise to the top! To gain full voting privileges,
11 thg 10, 2015 · Hint 1: If $x$ is a basic feasible solution, then the columns corresponding to the nonzero components of $x$ must be linearly independent (why?). What would happen if that …
Consider the production model $ {\bf x} = {\bf C x} + {\bf d}$ for an economy with two sectors, where $$ {\bf C} = \begin {bmatrix} 0.0 & 0.5 \\ 0.6 & 0.2 \end {bmatrix}, \qquad {\bf d} = \begin …
18 thg 9, 2018 · I studied a linear function definition in our Machine Learning course: f(ax + by) = af(x) + bf(y) Using this definition, we can prove that y = ax + b is NOT a linear function. This is …
28 thg 11, 2017 · This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any …
6 thg 12, 2018 · 6 You can use vectorization and Kronecker products. Assume we have the equation $$\bf AXB=C$$ $$ ( {\bf B}^T \otimes {\bf A})\text {vec} ( {\bf X}) = \text {vec} ( {\bf …
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