MathDB3 problems
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Conjecture that true solutions include non-active strict saddle points in matrix sensing
Non-active true-solution conjecture. A subset of the true solutions are non-active strict saddle points.
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Applicability of stochastic-gradient analysis to low-rank matrix sensing
The paper analyzes constant step-size stochastic gradient descent for the non-convex, non-smooth phase retrieval objective, using Gaussian sampling vectors and arbitrary initializa…
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Extension of the analysis framework to low-rank matrix sensing
The paper studies online stochastic gradient descent for non-smooth, non-convex phase retrieval with real signals and sampling vectors, and notes that its analysis framework also g…