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experiment with barriers

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This commit is contained in:
Gaspard Jankowiak 2024-05-16 14:43:06 +02:00
parent 1a500a37ba
commit b2a7f1ba13
1 changed files with 27 additions and 10 deletions
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37
test.jl
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@ -36,15 +36,15 @@ mean_5k_full = begin
mean_params = vec(sum(params_pop; dims=1) / N_trials)
end
# best_5k = PLUV.reduce_to_free_parameters(meta, [100000.0000000, 7.5004085, 23.5074449, 9.8664991, 0.0000000, 1.0000000, 0.2900000, 0.2203793,
# best_5k = Utils.reduce_to_free_parameters(meta, [100000.0000000, 7.5004085, 23.5074449, 9.8664991, 0.0000000, 1.0000000, 0.2900000, 0.2203793,
# 0.2990402, 0.4122816, 0.3266636, 0.2276763, 0.2481895, 0.6642123, 0.1203572, 0.2629861, 0.9000000, 0.3050000,
# 0.2945315, 0.2762371, 0.4777401, 0.8100000, 2.0149998, 37.0000000, 0.0299139, 0.0002171])
#
# best_5k = PLUV.reduce_to_free_parameters(meta, [100000.0000000, 7.6975592, 23.4041912, 9.7275630, 0.0000000, 1.0000000, 0.2900000, 0.2219937, 0.3000114,
# best_5k = Utils.reduce_to_free_parameters(meta, [100000.0000000, 7.6975592, 23.4041912, 9.7275630, 0.0000000, 1.0000000, 0.2900000, 0.2219937, 0.3000114,
# 0.4158804, 0.3278631, 0.2296156, 0.2475607, 0.6664143, 0.1191859, 0.2618609, 0.9000000, 0.3050000, 0.2963982, 0.2770345, 0.4762528,
# 0.8100000, 1.9706651, 37.0000000, 0.0299179, 0.0002167])
best_5k_params = PLUV.reduce_to_free_parameters(meta, best_params)
best_5k_params = Utils.reduce_to_free_parameters(meta, best_params)
q, I_data, err = Utils.select_columns(qie_data, meta["q_min"], meta["q_max"], meta["binning"], meta["binning"])
q_all, I_all, err_all = Utils.select_columns(qie_data, meta["q_min"], meta["q_max"], 1, meta["binning"])
@ -57,12 +57,22 @@ w_all = Utils.compute_logscale_weights(q_all)
# I_init = PLUV.intensity(params_init, q)
intensity_reduced, P_reduced, lb_reduced, ub_reduced = PLUV.reduce_to_free_parameters(meta, params_init, lower_bounds, upper_bounds, q)
intensity_reduced, P_reduced, lb_reduced, ub_reduced = Utils.reduce_to_free_parameters(meta, PLUV.intensity, params_init, lower_bounds, upper_bounds, q)
simple_bounds = collect(zip(lb_reduced, ub_reduced))
simple_init = 0.5 * (lb_reduced .+ ub_reduced)
padding_factor = fill(1e-1, length(simple_init))
padding_factors = fill(1e-1, length(simple_init))
scaling_factors = fill(0.0, length(simple_init))
#padding_factors[4] = 1e0
#padding_factors[7] = 1e0
#padding_factors[17] = 1e0
#padding_factors[18] = 1e0
# scaling_factors[4] = 1e1
# scaling_factors[6] = 1e1
#scaling_factors[7] = 1e3
bounds = MH.boxconstraints(lb=lb_reduced, ub=ub_reduced)
@ -74,13 +84,15 @@ function obj_χ2(P)
end
function obj_residuals(P)
print(".")
I_model, neg_H20 = intensity_reduced(P)
residuals = Utils.residuals(I_data, I_model, err)
factor = (neg_H20 == 0 ? 1.0 : 5.0 * (neg_H20 + 1))
return factor * residuals
res = factor * residuals
return res
end
barriered_obj = Utils.add_log_barriers(obj_residuals, simple_bounds; padding_factor=padding_factor, mode=:outer)
barriered_obj = Utils.add_log_barriers(obj_residuals, simple_bounds; padding_factors=padding_factors, mode=:inner)
information = MH.Information(f_optimum=0.0)
information = MH.Information()
@ -89,16 +101,18 @@ algorithm = MH.ECA(information=information, options=options)
#algorithm = MH.PSO()
I_best_5k, _ = PLUV.intensity(best_5k_full, q)
I_best_5k_reduced, _ = intensity_reduced(best_5k_params)
I_mean_5k, _ = PLUV.intensity(mean_5k_full, q_all)
# Gauss-Newton
if true
initial_guess = PLUV.reduce_to_free_parameters(meta, collect(Float64, values(params_init)))
initial_guess = best_5k_params
initial_guess = Utils.reduce_to_free_parameters(meta, collect(Float64, values(params_init)))
initial_guess = simple_init
# initial_guess = best_5k_params
_, result = GN.optimize(barriered_obj, initial_guess; show_trace=true, iscale=1, ZCP=1e-2, ZCPMIN=1e-2)
#_, result = GN.optimize(barriered_obj, initial_guess)
# _, result = GN.optimize(barriered_obj, initial_guess)
if GN.has_converged(result)
@info "Gauss-Newton converged"
@ -130,6 +144,9 @@ if true
ax = M.Axis(fig[1, 1]; xscale=log10, yscale=log10)
#ax = M.Axis(fig[1, 1])
I_initial, _ = intensity_reduced(initial_guess)
M.lines!(ax, q, I_initial, label="initial", linestyle=:dash, linewidth=2)
M.lines!(ax, q, I_best, label="MH best (julia)")
M.scatter!(ax, q, I_data, label="data")
M.lines!(ax, q, I_best_5k, label="TSA best (5k)")