Topics tagged optimization

Topic	Replies	Views	Activity
Negative Binomial model won't optimize dispersion parameter Modeling optimization , initialization	3	71	March 13, 2025
How to vectorize the stan code to reduce the run time Modeling pystan , optimization , marketing , mixed-model	7	130	December 10, 2024
Disabling line search CmdStan optimization	3	82	July 31, 2024
Improve specification and sampling of SIS compartmental model Modeling rstan , optimization , specification	4	232	April 7, 2024
LBFGS Optimization to maximize function with inequality constraints on sum Modeling optimization , fitting-issues , specification , cmdstanr	4	224	March 27, 2024
Obtaining posterior draws from optimize in CmdStan CmdStan optimization	4	535	April 14, 2023
Problem recovering standard errors for parameters when fiting with optimizing algorithm Modeling rstan , optimization	0	493	April 1, 2023
Optimizer struggling with random walk Modeling optimization	8	1011	November 6, 2021
MLE and "optimize" in PyStan3 Modeling pystan , optimization , python	2	1084	August 20, 2021
Allow users to declare terms as Jacobian Developers optimization , language	0	726	May 13, 2021
Rstan error during sampling for large dataset General rstan , optimization	1	636	May 5, 2021
Bounded and Constrained Optimization of non-linear objective in stan Modeling optimization	4	1155	April 22, 2021
Mystery: chains mixing well when using average, but not when using single observations? Modeling techniques , optimization , fitting-issues , specification , performance	4	617	November 5, 2020
Model comparison with Maximum-Likelihood fits Modeling optimization , model-comparison	1	695	October 13, 2020
Parallelizing STAN with foreach/dopar: model being returned instead of result RStan optimization , fitting-issues , paralellization	3	1671	July 3, 2020
Hessian matrix for transformed parameters in optimizing function RStan optimization	1	991	April 30, 2020
Why doesn't sampling fail when optimizing does? Algorithms optimization , mcmc	3	880	February 13, 2020
Line search failed error Algorithms optimization	3	3741	August 14, 2019
Using output from optimization algorithms to initialize sampler Algorithms optimization , mcmc	6	1249	April 25, 2019
Are transformed parameters included in the search space for optimizations? Algorithms optimization	1	653	January 7, 2019
Possible INLA optimization step concerns, sparsity requirements, and Stan features for large gaussian process inference Algorithms optimization , mcmc	31	3936	September 19, 2018
Inconsistent chain speed - does this give a clue about the problem? Algorithms optimization	10	4593	July 20, 2018
Mixed models with deterministic and random variables Algorithms optimization , variational-bayes	7	2255	August 1, 2017
Inverse problem with Stan Algorithms optimization	3	1328	July 27, 2017
Non-negative constrained optimization? Algorithms optimization	5	1599	May 17, 2017
L-BFGS-B comment Algorithms optimization	23	4522	October 13, 2016