def params_prauc_tables(h5d_fl1, h5d_fl2, curvetype, kfolds, params_od, mix, strata, trec):
"""Area Under the Curve(AUC) paired with table of parameters for PR curve.
# # # Make proper Definition here # # #
"""
# Selecting whether the resaults should be retured in binary(i.e. Trueth-Table)...
# ...or multi-class value form.
if curvetype == 'multiclass':
binary = True
else:
binary = False
# Beginning AUC-Params table building.
res_lst = list()
# Loading data in a convenient form.
for params_lst, params_path in zip(
param_comb.ParamGridIter(params_od, 'list'),
param_comb.ParamGridIter(params_od, 'path')):
# Defining list for AUC values storage. For this loop.
auc_values = list()
if params_lst[0] > params_lst[1]:
if mix:
pred_scores, expd_y, pred_y = rfse_multiclass_multimeasure_res(
h5d_fl1, h5d_fl2, kfolds, params_path, binary=binary, strata=strata
)
else:
pred_scores, expd_y, pred_y = multiclass_res(
h5d_fl1, kfolds, params_path, binary=binary, strata=strata
)
# NOTE: Crossckecking and replacing the class-tags of the experiment to virtual...
# ...class tags refering to the index of the np.unique(expd_y) vector in order...
# ...to ease the calculations of the curves.
tags2idx_ref = np.unique(expd_y)
i_fix = 0
if tags2idx_ref[0] > 0:
i_fix = 1
for i, tg in enumerate(tags2idx_ref):
expd_y[np.where(expd_y == tg)] = i + i_fix
pred_y[np.where(pred_y == tg)] = i + i_fix
# Selecting the case and calculating the precision recall curves.
if curvetype == 'multiclass':
# NOTE: Option 'is_truth_tbl' is critical to be selected correctly depending...
# ...on the input.
prec, recl, t = mx.pr_curve(
expd_y, pred_scores, full_curve=True, is_truth_tbl=True
)
# Interpolated at 11-Recall-Levels.
prec, recl = mx.reclev11_max(prec, recl, trec=trec)
elif curvetype == 'multiclass_macro':
# NOTE: Option 'unknow_class' is critical to be selected correctly depending...
# ...on the input.
prec, recl, t = mx.pr_curve_macro(
expd_y, pred_y, pred_scores, full_curve=True,
)
# Interpolated at 11-Recall-Levels.
prec, recl = mx.reclev11_max(prec, recl, trec=trec)
elif curvetype == 'onevsall':
# Finding unique genres.
gnr_tgs = np.unique(expd_y)
# Precsion and Recall scores lists of the PR curve per genre.
prec_lst = list()
recl_lst = list()
# Calculating AUC per genre tag.
for gnr in gnr_tgs:
if mix:
pred_scores, expd_y, pred_y = onevsall_multimeasure_res(
h5d_fl1, h5d_fl2, gnr, kfolds, params_path
)
else:
pred_scores, expd_y, pred_y = onevsall_res(
h5d_fl1, gnr, kfolds, params_path
)
# NOTE: Option 'is_truth_tbl' is critical to be selected correctly depending...
# ...on the input.
prec_val, recl_val, t = mx.pr_curve(
expd_y, pred_scores, full_curve=True, is_truth_tbl=False
)
# Interpolated at 11-Recall-Levels.
prec_val, recl_val = mx.reclev11_max(prec_val, recl_val, trec=trec)
# Keeping Precsion and Recall scores of the PR curve per genre.
prec_lst.append(prec)
recl_lst.append(recl)
# Calculating the PR Averaged Macro Curves values for 1-vs-All case.
prec = np.mean(np.vstack(prec_lst), axis=0)
recl = np.mean(np.vstack(recl_lst), axis=0)
else:
raise Exception('Invalide curvetype argument value.')
# Saving the AUC value and extending parameters list with AUC(s).
try:
params_lst.extend([mx.auc(recl, prec)])
except:
print "Warning:", params_path, "PR AUC is for these params has set to 0.0"
params_lst.extend([0.0])
# Appending the parameters list together with their respective AUC(s).
res_lst.append(params_lst)
# Stacking and returning the data collected in a 2D array. Last column contain the AUC for...
# ...every parameters values possible combination.
return np.vstack(res_lst)
h5d_fl1, kfolds, params_path, binary=False, strata=None
)
# Closing the h5d files.
if comb_val[3] == 'Comb':
h5d_fl1.close()
h5d_fl2.close()
else:
h5d_fl1.close()
# Creating the Actual PRC.
# y, x, t = pr_curve(expd_y, pred_scores, full_curve=True, is_truth_tbl=True)
# Creating the Actual MACRO PRC.
y, x, t = pr_curve_macro(
expd_y, pred_y, pred_scores, full_curve=True
)
# Getting the max 11 Recall Leves in TREC way.
# if i == 0:
y, x = reclev11_max(y, x, trec=False)
# Selecting array indices with non-zero cells.
non_zero_idx = np.where(y > 0)
# # # Do the Plotting
linestyle = {
"color": plt_dsp_attr[i][0],
"linestyle": plt_dsp_attr[i][1],
"marker": plt_dsp_attr[i][2],
"linewidth": 2,