def featureExtractionInstructions2Xy(wavAnnColl, lt, TpipeSettings, labelSet=None,
**kwargs):
"""All instructions for feature extraction
Params:
-------
wavAnnColl :
lt : label transformer
featExtFun : feature extraction function
labelSet : list with the subset of labels to consider
**feExParamDict : other kwargs for feature extraction
eg. dict(wavPreprocessingT=None, ensembleSettings=ensembleSettings)
"""
Tpipe = fex.makeTransformationsPipeline(TpipeSettings)
feExFun = Tpipe.fun
datO = fex.wavAnnCollection2Xy_ensemble_datXy_names(wavAnnColl, feExFun,**kwargs)
X_train, y_train_labels = datO.filterInstances(labelSet)
y_train = lt.nom2num(y_train_labels)
return X_train, y_train
def runWSD2Experiment(train_coll,
test_coll,
lt,
T_settings,
labsHierarchy,
cv,
out_fN,
testColl_scoreClassLabels,
readSections,
param=None,
predictionsDir=None,
keepSections='default',
scoring=None):
"""Runs clf experiments
Parameters
----------
train_coll: list
test_coll: list of (wavF, annF, template_annF)
lt: ML.labelTransformer
T_settings: list of tuples
labelsHierachy: list of strings
out_fN: str
returnClfs: dict, Flase => clfs are not stored
predictionsDir: str
scoring: string or sklearn.metrics.scorer
"""
Tpipe = fex.makeTransformationsPipeline(T_settings)
feExFun = Tpipe.fun
#### prepare DATA: collections --> X y
## compute features
dataO = fex.wavAnnCollection2datXy(train_coll, feExFun, labsHierarchy)
## prepare X y data
X0, y0_names = dataO.filterInstances(lt.classes_) # filter for clf_labs
X, y_names = X0, y0_names #myML.balanceToClass(X0, y0_names, 'c') # balance classes X0, y0_names#
y = lt.nom2num(y_names)
labsD = lt.targetNumNomDict()
with open(
out_fN, 'a'
) as out_file: # print details about the dataset into status file
out_file.write("# {} ({})\n".format(collFi_train, len(train_coll)))
out_file.write("#label_transformer {} {}\t data {}\n".format(
lt.targetNumNomDict(), lt.classes_, Counter(y_names)))
X_train, X_test, y_train, y_test = train_test_split(X,
y,
test_size=testFrac,
random_state=0)
with open(out_fN, 'a') as out_file: # print details to status file
out_file.write("#TRAIN, shape {}\n".format(np.shape(X_train)))
out_file.write("#TEST, shape {}\n".format(np.shape(X_test)))
#### CLF
pipe = Pipeline(estimators)
gs = GridSearchCV(estimator=pipe,
param_grid=param_grid,
scoring=scoring,
cv=cv,
n_jobs=-1)
gs = gs.fit(X_train, y_train)
## best clf scores
with open(out_fN, 'a') as out_file:
out_file.write("#CLF\t{}\tbest score {:.3f}\n".format(
str(gs.best_params_).replace('\n', ''), gs.best_score_))
clf_best = gs.best_estimator_
## clf scores over test set
with open(out_fN, 'a') as out_file:
### cv score
cv_sc = cross_val_score(clf_best, X_test, y_test, scoring=scoring)
out_file.write("{:2.2f}, {:2.2f}, {:.2f}, ".format(
param, 100 * np.mean(cv_sc), 100 * 2 * np.std(cv_sc)))
### cv accuracy
cv_acc = cross_val_score(clf_best, X_test, y_test)
out_file.write("{:2.2f}, {:.2f}, ".format(100 * np.mean(cv_acc),
100 * 2 * np.std(cv_acc)))
## print R, P an f1 for each class
y_true, y_pred = y_test, clf_best.predict(X_test)
MLvl.print_precision_recall_fscore_support(lt.num2nom(y_true),
lt.num2nom(y_pred),
out_fN,
labels=lt.classes_)
#strini="\nTest Set", strend="\n")
#### TEST collection
### train classifier with whole dataset
clf = skb.clone(
gs.best_estimator_
) # clone to create a new classifier with the same parameters
clf.fit(X, y)
### print scores
callIx = lt.nom2num('c')
for wavF, annF, template_annF in test_coll[:]:
### print WSD2 scores, see WSD2_experiment.ipynb
MLvl.printWSD2_scores(
wavF,
true_annF=annF,
template_annF=template_annF,
WSD2_clf=clf,
WSD2_feExFun=feExFun,
lt=lt,
scoreClassLabels=testColl_scoreClassLabels,
outF=out_fN,
strini=", ",
strend="",
m='auto',
#strini="\nTESTCOLL", strend="\n", m='auto',
readSectionsWSD2=readSections, # for WSD2
labelsHierarchy=['c'])
if predictionsDir:
bN = os.path.basename(annF)
annFile_predict = os.path.join(predictionsDir,
"{}_{}".format(int(param), bN))
pT.WSD2predictAnnotations(wavF,
template_annF,
feExFun,
lt,
clf,
outF=annFile_predict,
readSections=readSections,
keepSections=keepSections)
with open(out_fN, 'a') as out_file:
out_file.write("\n")
return clf
################### ASSIGNMENTS ####################
##### OUTPUT FILES
try:
os.makedirs(oDir)
except OSError:
pass
out_fN = os.path.join(oDir, "scores.txt")
if savePredictions:
predictionsDir = os.path.join(oDir, "predictions")
try:
os.makedirs(predictionsDir)
except OSError:
pass
Tpipe = fex.makeTransformationsPipeline(T_settings)
## clf settings
clfStr = 'cv{}-'.format(cv)
settingsStr = "{}-{}".format(Tpipe.string, clfStr)
settingsStr += '-labsHierarchy_' + '_'.join(labsHierarchy)
## write in out file
out_file = open(out_fN, 'a')
out_file.write("#WSD1\n###--------- {} ---------###\n".format(
time.strftime("%Y.%m.%d\t\t%H:%M:%S")))
out_file.write("#" + settingsStr + '\n')
out_file.close()
## load collections
train_coll = fex.readCols(collFi_train, colIndexes=(0, 1))
def runCallClfExperiment(wavColl,
lt,
T_settings,
out_fN,
testFrac,
cv,
pipe_estimators,
gs_grid,
filterClfClasses,
scoring=None,
param=None):
""" . . . . . USE callClfExperiment instead to be deprecated!!! . . . . .
Runs clf experiments in the old way
using T_settings instead of Tpipe
Parameters
----------
train_coll: list
test_coll: list
lt: ML.labelTransformer
T_settings: list of tuples
labelsHierarchy: list of strings
cv: cv folds
pipe_estimators: list
for pipeline
gs_grid: list
filterClfClasses: list
can use lt.classes_
out_fN: str
returnClfs: dict, Flase => clfs are not stored
predictionsDir: str
scoring: string or sklearn.metrics.scorer
param: float
value of the param in experiment, for printing
"""
Tpipe = fex.makeTransformationsPipeline(T_settings)
feExFun = Tpipe.fun
fs = Tpipe.Audio_features.fs
#### prepare DATA: collections --> X y
## compute features
datO = fex.wavLCollection2datXy(wavColl, fs=fs, featExtFun=feExFun)
X, y_names = datO.filterInstances(filterClfClasses)
y = lt.nom2num(y_names)
X_train, X_test, y_train, y_test = train_test_split(X,
y,
test_size=testFrac,
random_state=0)
#### CLF
pipe = Pipeline(pipe_estimators)
gs = GridSearchCV(estimator=pipe,
param_grid=gs_grid,
scoring=scoring,
cv=cv,
n_jobs=-1)
gs = gs.fit(X_train, y_train)
clf_best = gs.best_estimator_
y_pred = clf_best.predict(X_test)
## clf scores over test set
with open(out_fN, 'a') as out_file:
### cv score
cv_sc = cross_val_score(clf_best, X_train, y_train, scoring=scoring)
out_file.write("{:}, {:2.2f}, {:.2f}, ".format(
param, 100 * np.mean(cv_sc), 100 * 2 * np.std(cv_sc)))
P, R, f1, _ = mt.precision_recall_fscore_support(
y_test, y_pred,
average='macro') # average of the scores for the call classes
acc = mt.accuracy_score(y_test, y_pred)
out_file.write("{:.2f}, {:.2f}, {:.2f}, {:.2f}\n".format(
acc * 100, P * 100, R * 100, f1 * 100))
return clf_best.fit(X, y)
cv = 6
## clf settings
### inicialise Clf settings
paramsDi={}
pipe_estimators=[]
from pylotwhale.MLwhales.clf_pool import svc_l as clf_settings
pipe_estimators.append(('clf', clf_settings.fun))
paramsDi.update(clf_settings.grid_params_di)
gs_grid = [paramsDi] # clfSettings.grid_params #
#### Classes
callSet = ['126i', '130', '127', '129', '128i', '131i', '093ii']
##### FILES
## INPUT -> collection files
filesDi = {}
#collFi_train
filesDi['train']= '/home/flo/x1-flo/whales/MLwhales/callClassification/data/collections/Vocal-repertoire-catalogue-Pilot-whales-Norway-callsL10.txt'
## OUTPUT -> DIR
#oDir =
import pylotwhale.MLwhales.featureExtraction as fex
settings_str = fex.makeTransformationsPipeline(T_settings).string + clf_settings.clf_name
filesDi['outDir'] = '/home/flo/x1-flo/whales/MLwhales/callClassification/data/experiments/vocaRepNPW-clf/{}'.format(settings_str)
def run_iter_clf_experiment(param_grid, paramKey, paramDict,
clf_settings, feExParamsDict,
#updateParamInDict,
wavAnnColl_te, lt,
updateTestSet=True,
scores_file=None,
accum_file=None, ):
"""
Run a clf experiments for different parameters (param_grid)
Parameters:
----------
param_grid : array_like
Experiment parameters.
Often repeated according to n_experiments
paramKey : str
key of paramDict, used to specify the and aupdate the experiments parameter
which can be a feature name (ceps), NFFT or the instructions for the ensemble
generation. See updateParamInDict() and feExParamsDict.
paramDict: dict
dictionary where the experment param was defined
clf_settings : dictionary
clf settings
feExParamsDict: feExParamDict : dictionary
Instructions for the extraction of features and ensemble generation.
Used user over the train set and sometimes also over the test set.
wavAnnColl : collection of annotated wavs
lt : label transformer
featExtFun : feature extraction instructions callable or dicT
labelSet : set of clf-labels
ensembleSettings : instructions for the generation of a sound ensemble (dict)
updateParamInDict : callable
Instructions for updating the experimental parameter.
Often specified by paramsDict.
wavAnnColl_te : list,
test collection
lt : label transformer
updateTestSet : bool
True if feture extraction changes over the experiment
False, no need to update feature representation if the test set
scores_file : str
output file for saving clf scores
accum_file : str
output file for saving predictions
"""
### TEST DATA
## data settings
paramDict[paramKey]=param_grid[0]
##
feExFun = fex.makeTransformationsPipeline(feExParamsDict["TpipeSettings"]).fun
XyDict_test = fex.wavAnnCollection2datXyDict(wavAnnColl_te, feExFun)
XyO_test = fex.XyDict2XyO(XyDict_test)
X_test, y_test_labels = XyO_test.filterInstances(lt.classes_)
y_test = lt.nom2num(y_test_labels)
scoresDict = None
for param in param_grid:
paramDict[paramKey]=param #paramsDict = updateParamInDict(feExParamsDict, paramKey, param)
print(paramKey, paramDict[paramKey], paramDict)#, feExParamsDict["TpipeSettings"])
clfExp = clf_experimentO(clf_settings, **feExParamsDict)
#print("param", param, '\n\n', paramsDict['featExtFun'])
if updateTestSet: # True when changing feature extraction instructions
feExFun = fex.makeTransformationsPipeline(feExParamsDict["TpipeSettings"]).fun
XyDict_test = updateParamTestSet(wavAnnColl_te, lt,
featExtFun=feExFun,
output_type='dict')
X_test, y_test = updateParamTestSet(wavAnnColl_te, lt,
featExtFun=feExFun,
output_type='Xy')
if scores_file is not None:
clfExp.print_scores(scores_file, X_test, y_test, param)
if XyDict_test is not None:
scoresDict = clfExp.accumPredictions(XyDict_test, param,
predictionsDict=scoresDict)
if accum_file is not None:
clfExp.print_predictions(accum_file, scoresDict, lt)
return True
def runExperiment(
train_coll,
test_coll,
lt,
T_settings,
labsHierarchy,
out_fN,
cv,
pipe_estimators,
gs_grid,
scoring=None,
param=None,
predictionsDir=None,
):
"""Runs clf experiments
Parameters
----------
train_coll: list
test_coll: list
lt: ML.labelTransformer
T_settings: list of tuples
labelsHierachy: list of strings
cv: cv folds
pipe_estimators: list
for pipline
gs_grid: list
out_fN: str
returnClfs: dict, Flase => clfs are not stored
predictionsDir: str
scoring: string or sklearn.metrics.scorer
"""
Tpipe = fex.makeTransformationsPipeline(T_settings)
feExFun = Tpipe.fun
#### prepare DATA: collections --> X y
## compute features
dataO = fex.wavAnnCollection2datXy(train_coll, feExFun, labsHierarchy)
## prepare X y data
X0, y0_names = dataO.filterInstances(lt.classes_) # filter for clf_labs
X, y_names = (
X0,
y0_names,
) # myML.balanceToClass(X0, y0_names, 'c') # balance classes X0, y0_names#
y = lt.nom2num(y_names)
labsD = lt.targetNumNomDict()
with open(
out_fN, "a"
) as out_file: # print details about the dataset into status file
out_file.write("# {} ({})\n".format(collFi_train, len(train_coll)))
out_file.write("#label_transformer {} {}\t data {}\n".format(
lt.targetNumNomDict(), lt.classes_, Counter(y_names)))
X_train, X_test, y_train, y_test = train_test_split(X,
y,
test_size=testFrac,
random_state=0)
with open(out_fN, "a") as out_file: # print details to status file
out_file.write("#TRAIN, shape {}\n".format(np.shape(X_train)))
out_file.write("#TEST, shape {}\n".format(np.shape(X_test)))
#### CLF
pipe = Pipeline(pipe_estimators)
gs = GridSearchCV(estimator=pipe,
param_grid=gs_grid,
scoring=scoring,
cv=cv,
n_jobs=-1)
gs = gs.fit(X_train, y_train)
## best clf scores
with open(out_fN, "a") as out_file:
out_file.write("#CLF\t{}\tbest score {:.3f}\n".format(
str(gs.best_params_).replace("\n", ""), gs.best_score_))
clf_best = gs.best_estimator_
## clf scores over test set
with open(out_fN, "a") as out_file:
### cv score
cv_sc = cross_val_score(clf_best, X_test, y_test, scoring=scoring)
out_file.write("{:2.2f}, {:2.2f}, {:.2f}, ".format(
param, 100 * np.mean(cv_sc), 100 * 2 * np.std(cv_sc)))
### cv accuracy
cv_acc = cross_val_score(clf_best, X_test, y_test)
out_file.write("{:2.2f}, {:.2f}, ".format(100 * np.mean(cv_acc),
100 * 2 * np.std(cv_acc)))
## print R, P an f1 for each class
y_true, y_pred = y_test, clf_best.predict(X_test)
MLvl.print_precision_recall_fscore_support(y_true, y_pred, out_fN)
#### TEST collection
### train classifier with whole dataset
clf = skb.clone(
gs.best_estimator_
) # clone to create a new classifier with the same parameters
clf.fit(X, y)
### print scores
callIx = lt.nom2num("c")
for wavF, annF in test_coll[:]:
A, a_names = fex.getXy_fromWavFAnnF(wavF,
annF,
feExFun,
labsHierarchy,
filter_classes=lt.classes_)
a_true = lt.nom2num(a_names)
a_pred = clf.predict(A)
P = mt.precision_score(a_true, a_pred, average=None)[callIx]
R = mt.recall_score(a_true, a_pred, average=None)[callIx]
f1 = mt.f1_score(a_true, a_pred, average=None)[callIx]
with open(out_fN, "a") as out_file:
out_file.write(", {:2.2f}, {:2.2f}, {:2.2f}".format(
100 * f1, 100 * P, 100 * R))
if predictionsDir:
bN = os.path.basename(annF)
annFile_predict = os.path.join(
predictionsDir, "{}_{}_{}".format(int(f1 * 100), int(param),
bN))
pT.predictSoundSections(wavF,
clf,
lt,
feExFun,
annSections=labsHierarchy,
outF=annFile_predict)
with open(out_fN, "a") as out_file:
out_file.write("\n")
return clf
metric='f1_macro'#'accuracy'
cv = 5
## clf settings
### inicialise Clf settings
paramsDi={}
pipe_estimators=[]
from pylotwhale.MLwhales.clf_pool import svc_rbf as clf_settings
pipe_estimators.append(('clf', clf_settings.fun))
paramsDi.update(clf_settings.grid_params_di)
gs_grid = [paramsDi] # clfSettings.grid_params #
#### Classes
#callSet = ['126i', '130', '127', '129', '128i', '131i', '093ii']
##### FILES
## INPUT -> collection files
filesDi = {}
#collFi_train
filesDi['train'] ='/home/florencia/whales/MLwhales/callClassification/data/collections/Vocal-repertoire-catalogue-Pilot-whales-Norway-callsL10.txt'
# '/home/florencia/whales/data/orchive/flo/data/wavLabelColl-call-catalog-xsilence.txt'
#
## OUTPUT -> DIR
#oDir =
from pylotwhale.MLwhales.featureExtraction import makeTransformationsPipeline
settings_str = makeTransformationsPipeline(T_settings).string + clf_settings.clf_name + '-'+ metric
filesDi['outDir'] = '/home/florencia/whales/MLwhales/callClassification/data/experiments/fullRep-cutWavs/f1_macro_n_mels_Nslices_NFFT1024/{}'.format(settings_str)
# '/home/florencia/whales/data/orchive/flo/data/experiments/{}'.format(settings_str)
#'/home/florencia/whales/MLwhales/callClassification/data/experiments/fullRep-cutWavs/{}'.format(settings_str)
