I am getting NaN while doing optimization with ADVI. with pm.Model() as irt_model: loc = pm.Normal('loc', mu=0., sd=1.,shape=N_QUESTIONS) scale = pm.TruncatedNormal('scale', mu=1. , sd=0.1, lower=0. ,shape=N_QUESTIONS) guessing = pm.Beta('guessing', alpha=1., beta=5.,shape=N_QUESTIONS) …

NaN occurred in optimization at first Iteration with ADVI

junpenglao February 18, 2020, 8:41am 2

Could you try lower the initial learning rate?

Topic		Replies	Views
NaN occurred in optimization with ADVI Questions	5	4619	August 6, 2019
ADVI changes start values to NaN Questions	2	894	January 18, 2021
NaN occurred in optimization with NUTS Questions	8	4719	May 29, 2018
How to use pymc3.fit() method Questions	16	3836	May 7, 2018
NaN occurred in optimization (error in DL with variational minibatches) Questions	6	2029	March 21, 2018