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Sparse group lasso derivation of soft thresholding operator via subgradient equations

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#convex-optimization #linear-regression #subgradient
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Getting the final solution for the subgradient of function $F(x) := \max \{0, \frac1{2}(x^2 - 1)\}$

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#convex-analysis #convex-optimization #subgradient
814
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Unbounded Values in Lagrangian Relaxation

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#convex-optimization #lagrange-multiplier #subgradient
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Undefined values in subgradient optimization

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#convex-optimization #subgradient
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Why do we need sub-gradient methods for non-differentiable functions?

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#optimization #convex-optimization #gradient-descent #subgradient
112
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Is there an equivalence between subgradient and stochastic gradient?

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#optimization #convex-optimization #machine-learning #numerical-optimization #subgradient
195
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For non-differentiable functions, does fundamental theorem of calculus give the subgradient?

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#calculus #analysis #subgradient
580
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When are sublevel sets of convex subdifferentiable functions bounded?

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#convex-analysis #convex-optimization #subgradient
225
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Lagrangian relaxation

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#optimization #lagrange-multiplier #subgradient
3.7k
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how to find subdifferential of a function $x^2+ |x-1|+|x-2|$

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#calculus #nonlinear-optimization #subgradient
626
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Sub-gradient of square root of modulus of $x$

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#convex-optimization #subgradient
30
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Obtaining a valid subgradient

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#nonlinear-optimization #subgradient
439
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Derivative of nonsmooth functions

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#derivatives #subgradient
145
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Subgradient of Entropy

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#functional-analysis #convex-analysis #subgradient
62
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Help needed in understanding the following Lemma

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#optimization #convex-analysis #convex-optimization #subgradient

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