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Repair adaptive multi-proposal picking rules #544

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Merged
oschulz merged 1 commit into from
Sep 14, 2026
Merged

Repair adaptive multi-proposal picking rules #544

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9 changes: 7 additions & 2 deletions src/samplers/mcmc/mcmc_tuning/mcmc_adaptive_multiprop_tuner.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -254,8 +254,13 @@ function _tune_picking_rule(
)
p_tuned = copy(picking_rule.p)
p_tuned[curr_idx] = acc_new
p_tuned .*= (1 - picking_socket) / sum(p_tuned)
p_tuned .+= picking_socket / N
total = sum(p_tuned)
if iszero(total)
fill!(p_tuned, 1 / N)
else
p_tuned .*= (1 - picking_socket) / total
p_tuned .+= picking_socket / N
end
return Categorical(p_tuned)
end

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