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Linear Algebra Principal Component Analysis Optimization

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#linear-algebra #optimization #eigenvalues-eigenvectors #machine-learning
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How is the cost function $ J(\theta)$ always non-negative for logistic regression?

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#numerical-methods #machine-learning #logistic-regression
113
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Why is there an $x$ when solving the derivative of $\theta_1$ and not $\theta_0$?

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#calculus #derivatives #machine-learning
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Determine cricket winnability based on player performances

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#game-theory #nonlinear-optimization #machine-learning #constraint-programming
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Derivation of simplified form derivative of Deep Learning loss function (equation 6.57 in Deep Learning book)

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#machine-learning
636
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2nd order matrix derivative in OLS derivation

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#calculus #regression #matrix-calculus #machine-learning
506
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Rewriting full covariance matrix as a diagonal matrix in a new frame of reference

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#linear-algebra #probability #machine-learning
1.6k
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What are the limitations of using gradient-free optimization functions?

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#optimization #machine-learning #numerical-optimization
1.5k
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What is the error function in multi-class classification?

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#machine-learning #neural-networks #logistic-regression
10.3k
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What is the difference between a kernel, and kernel (Gram) matrix?

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#matrices #machine-learning #positive-definite #positive-semidefinite #python
454
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Deep Learning Book - Early Stopping and L2 Regularization

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#matrix-equations #machine-learning
3k
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A question about VC dimension. 2D Axis aligned rectangles

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#combinatorics #computer-science #machine-learning
255
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Why the derivative of i-th element of softmax in respect to j-th element is 0 when i != j

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#derivatives #machine-learning #neural-networks
260
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How to find a support vector machine by hand with only a few data points?

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#machine-learning
154
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What is the gradient of a reduction operation on a Matrix?

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#matrices #vector-analysis #machine-learning

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