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Hi ,
I am trying to replicate estimation results from a fit of AFT(loglogistic dist) In R(flexsurvreg package) with lifelines LogLogisticAFTFitter(); here are the calls:
R : loglogistic
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I was attacked to Julia by its reputation about its speed compared to e.g. python. Therefore, I tested it with one of the problems I need to solve on a daily basis, i.e. function minimisation. I compa…
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BFGS!, SR1! and SE! at least
https://github.com/paraynaud/PartitionedStructures.jl/blob/dd3fa1cfc72d6aae324adda111317c4eafa95e01/src/utils.jl#L17
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related question: does epsilon in the fg attack actually correspond to the distortion of the image? Or is that just the coefficient of the gradient in each iteration? If so, eps isn't a great measure …
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Hello,
We faced a problem with multithreading in Renjin. The 'optim' function with 'L-BFGS' method calculates different results when is invoked from many threads.
A simple Java project was prepa…
tlucz updated
4 years ago
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suggestion: Review lognormal_2mode_ml_guess function for numerical stability
The lognormal_2mode_ml_guess function should be carefully reviewed for numerical stability and edge cases. Consider addi…
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Currently `LBFGS` supports two different initializations of the inverse Hessian: the identity matrix (`scaleinvH0=false`) and the scalar matrix of Nocedal & Wright (`scaleinvH0=true`). But there are o…
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I am running openff-bespoke job for custom torsion fitting. Most of molecules completed pretty quickly but this particular molecule takes very long time in ForceBalance.py. Since optimization config f…
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sppb.msm
ghost updated
6 months ago