def main():
#read in data, parse into training and target sets
train = csv.read_data("../Data/train.csv")
target = np.array( [x[0] for x in train] )
train = np.array( [x[1:280] for x in train] )
#In this case we'll use a random forest, but this could be any classifier
cfr = RandomForestClassifier(n_estimators=120, min_samples_split=2, n_jobs=-1, max_depth=None) #.46
#cfr = GradientBoostingClassifier(n_estimators=120, learn_rate=0.57, max_depth=1) #.50
#cfr = ExtraTreesClassifier(n_estimators=120, max_depth=None, min_samples_split=1) #.489
#Simple K-Fold cross validation. 5 folds.
cv = cross_validation.KFold(len(train), k=5, indices=False)
#iterate through the training and test cross validation segments and
#run the classifier on each one, aggregating the results into a list
results = []
count = 0
for traincv, testcv in cv:
probas = cfr.fit(train[traincv], target[traincv]).predict_proba(train[testcv])
result = logloss.llfun(target[testcv], [x[1] for x in probas])
count += 1
print('fold: %d, result: %f' % (count, result))
results.append( result )
#print out the mean of the cross-validated results
print "Results: " + str( np.array(results).mean() )
test = csv.read_data("../Data/test.csv")
predicted_probs = cfr.predict_proba( [x[0:279] for x in test])
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv.write_delimited_file("../Submissions/rf_cv.csv",
predicted_probs)
def Analyze1():
Threshold = 4.0
targetFile = "Target_Stack_20121017110223_3.06649134025_GradientBoos.csv"
trainBase = csv_io.read_data("PreProcessData/training_PreProcess3.csv", skipFirstLine = False, split = "\t")
shutil.copy2("PreProcessData/test_PreProcess3.csv", "PreProcessData/test_PreProcess8.csv")
shutil.copy2("PreProcessData/DataClassList3.csv", "PreProcessData/DataClassList8.csv")
weights = csv_io.read_data("PreProcessData/Weights.csv", skipFirstLine = False)
target = [x[0] for x in trainBase]
print "Loading Data"
trainNew = []
probSum = 0.0
weightSum = 0
trn = csv_io.read_data("../predictions/" + targetFile, split="," ,skipFirstLine = False)
for row, datum in enumerate(trn):
if ( abs(datum[0] - target[row]) > Threshold):
print datum[0], target[row]
trainNew.append(trainBase[row])
probSum += weights[row][0] * math.fabs(target[row] - datum[0])
weightSum += weights[row][0]
print "Train Score: ", (probSum/weightSum)
print len(trainNew)
csv_io.write_delimited_file("PreProcessData/training_PreProcess8" + ".csv", trainNew, delimiter="\t")
def main():
#read in the training file
train = csv_io.read_data("../data/train.csv")
#set the training responses
target = [x[0] for x in train]
#set the training features
train = [x[1:] for x in train]
#read in the test file
realtest = csv_io.read_data("../data/test.csv")
# random forest code
rf = RandomForestClassifier(n_estimators=150,
min_samples_split=2,
n_jobs=-1)
# fit the training data
print('fitting the model')
rf.fit(train, target)
# run model against test data
predicted_probs = rf.predict_proba(realtest)
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("random_forest_solution.csv", predicted_probs)
print(
'Random Forest Complete! You Rock! Submit random_forest_solution.csv to Kaggle'
)
def main():
#read in the training file
train = csv_io.read_data("data/train.csv")
target = ravel(csv_io.read_data("data/trainLabels.csv"))
realtest = csv_io.read_data("data/test.csv")
print len(realtest)
# random forest code
rf = RandomForestClassifier(n_estimators=150, min_samples_split=2, n_jobs=-1, random_state=1, oob_score=True)
# fit the training data
print('fitting the model')
rf.fit(train, target)
# run model against test data
predicted_probs = rf.predict_proba(realtest)
predicted_class = rf.predict(realtest)
print predicted_class[1:10]
print(len(predicted_class))
predicted_probs = ["%f" % x[1] for x in predicted_probs]
predicted_class = ["%d,%d" % (i+1, predicted_class[i]) for i in range(len(predicted_class))]
print predicted_class[0:9]
print(len(predicted_class))
csv_io.write_delimited_file("results/random_forest_solution.csv", predicted_class, header=['Id', 'Solution'])
def PreProcess3():
trainBase = csv_io.read_data(
"PreProcessData/training_PreProcess2_temp.csv", False)
test = csv_io.read_data("PreProcessData/test_PreProcess2_temp.csv", False)
target = [x[0] for x in trainBase]
train = [x[1:] for x in trainBase]
NumFeatures = 200
#clf = RandomForestClassifier(n_estimators=100, n_jobs=1, criterion='gini',compute_importances=True)
chi = chi2(train, target)
print "Training"
#clf.fit(train, target)
chi = SelectKBest(chi2, k=NumFeatures).fit(train, target)
print chi.get_support(indices=True)
print chi.transform(X), np.array(train)[:, [0]]
return
trainNew = []
testNew = []
print "Computing Importances"
importances = clf.feature_importances_
#print importances
importancesTemp = sorted(importances, reverse=True)
print len(importancesTemp), "importances"
if (len(importancesTemp) > NumFeatures):
threshold = importancesTemp[NumFeatures]
#print "Sorted and deleted importances"
#print importancesTemp
rowIndex = 0
for row in train:
newRow = []
for impIndex, importance in enumerate(importances):
if (impIndex == 0):
newRow.append(target[rowIndex])
if (importance > threshold):
newRow.append(row[impIndex])
trainNew.append(newRow)
rowIndex += 1
for row in test:
newRow = []
for impIndex, importance in enumerate(importances):
if (importance > threshold):
#print impIndex, len(importances)
newRow.append(row[impIndex])
testNew.append(newRow)
csv_io.write_delimited_file("PreProcessData/training_PreProcess2_chi.csv",
trainNew)
csv_io.write_delimited_file("PreProcessData/test_PreProcess2_chi.csv",
testNew)
def Blend():
trainBase = csv_io.read_data("PreProcessData/training_PreProcess4.csv", skipFirstLine = False, split = "\t")
weights = csv_io.read_data("PreProcessData/Weights.csv", skipFirstLine = False)
SEED = 448
#random.seed(SEED)
#random.shuffle(trainBase)
target = [x[0] for x in trainBase]
dataset_blend_train, dataset_blend_test = stack.run_stack(SEED)
clfs = [LinearRegression(fit_intercept=True, normalize=False, copy_X=True)
]
# clfs = [LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=1.0, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=0.5, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=0.1, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=1.0, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=0.5, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=0.1, fit_intercept=True, intercept_scaling=1, class_weight=None)]
test = csv_io.read_data("PreProcessData/test_PreProcess4.csv", False)
dataset_blend_test_set = np.zeros((len(test), len(clfs)))
for ExecutionIndex, clf in enumerate(clfs):
clf.fit(dataset_blend_train, target)
submission = clf.predict(dataset_blend_test)
submission = ["%f" % x for x in submission]
now = datetime.datetime.now()
csv_io.write_delimited_file("../Submissions/BlendSingle" + now.strftime("%Y%m%d%H%M%S") + ".csv", submission)
# attempt to score the training set to predict score for blend...
probSum = 0.0
weightSum = 0
trainPrediction = clf.predict(dataset_blend_train)
for i in range(0, len(trainPrediction)):
probX = trainPrediction[i]
probSum += weights[i][0] * math.fabs(target[i] - probX)
weightSum += weights[i][0]
#probSum += int(target[i])*log(probX)+(1-int(target[i]))*log(1-probX)
print "Train Score: ", (probSum/weightSum)
dataset_blend_test_set[:, ExecutionIndex] = submission
csv_io.write_delimited_file_single("../Submissions/FinalBlend_" + now.strftime("%Y%m%d%H%M%S") + ".csv", dataset_blend_test_set.mean(1))
def Blend():
trainBase = csv_io.read_data("PreProcessData/training_PreProcess4.csv",
skipFirstLine=False,
split="\t")
weights = csv_io.read_data("PreProcessData/Weights.csv",
skipFirstLine=False)
SEED = 448
#random.seed(SEED)
#random.shuffle(trainBase)
target = [x[0] for x in trainBase]
dataset_blend_train, dataset_blend_test = stack.run_stack(SEED)
clfs = [LinearRegression(fit_intercept=True, normalize=False, copy_X=True)]
# clfs = [LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=1.0, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=0.5, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=0.1, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=1.0, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=0.5, fit_intercept=True, intercept_scaling=1, class_weight=None),
# LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=0.1, fit_intercept=True, intercept_scaling=1, class_weight=None)]
test = csv_io.read_data("PreProcessData/test_PreProcess4.csv", False)
dataset_blend_test_set = np.zeros((len(test), len(clfs)))
for ExecutionIndex, clf in enumerate(clfs):
clf.fit(dataset_blend_train, target)
submission = clf.predict(dataset_blend_test)
submission = ["%f" % x for x in submission]
now = datetime.datetime.now()
csv_io.write_delimited_file(
"../Submissions/BlendSingle" + now.strftime("%Y%m%d%H%M%S") +
".csv", submission)
# attempt to score the training set to predict score for blend...
probSum = 0.0
weightSum = 0
trainPrediction = clf.predict(dataset_blend_train)
for i in range(0, len(trainPrediction)):
probX = trainPrediction[i]
probSum += weights[i][0] * math.fabs(target[i] - probX)
weightSum += weights[i][0]
#probSum += int(target[i])*log(probX)+(1-int(target[i]))*log(1-probX)
print "Train Score: ", (probSum / weightSum)
dataset_blend_test_set[:, ExecutionIndex] = submission
csv_io.write_delimited_file_single(
"../Submissions/FinalBlend_" + now.strftime("%Y%m%d%H%M%S") + ".csv",
dataset_blend_test_set.mean(1))
def main():
training, target = csv_io.read_data("../Data/train.csv")
training = [x[1:] for x in training]
target = [float(x) for x in target]
test, throwaway = csv_io.read_data("../Data/test.csv")
test = [x[1:] for x in test]
svc = svm.SVC(kernel='poly', degree=2)
scores = cross_val_score(rf, training, target, cv=10)
print np.mean(scores)
def main():
training, target = csv_io.read_data("../Data/train.csv")
training = [x[1:] for x in training]
target = [float(x) for x in target]
test, throwaway = csv_io.read_data("../Data/test.csv")
test = [x[1:] for x in test]
rf = RandomForestClassifier(n_estimators=150, max_features=0.012)
scores = cross_val_score(rf, training, target, cv=10)
print np.mean(scores)
def main():
train = csv_io.read_data("../Data/train.csv")
target = [x[0] for x in train]
train = [x[1:] for x in train]
test = csv_io.read_data("../Data/test.csv")
rf = RandomForestClassifier(n_estimators=100, min_split=2)
rf.fit(train, target)
predicted_probs = rf.predict_proba(test)
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("../Submissions/rf_benchmark.csv",
predicted_probs)
def Blend():
trainBase = csv_io.read_data("PreProcessData/training_PreProcess2.csv", False)
SEED = 448
random.seed(SEED)
random.shuffle(trainBase)
target = [x[0] for x in trainBase]
dataset_blend_train, dataset_blend_test = stack.run_stack(SEED)
clfs = [LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=1.0, fit_intercept=True, intercept_scaling=1, class_weight=None),
LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=0.5, fit_intercept=True, intercept_scaling=1, class_weight=None),
LogisticRegression(penalty='l2', dual=False, tol=0.0001, C=0.1, fit_intercept=True, intercept_scaling=1, class_weight=None),
LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=1.0, fit_intercept=True, intercept_scaling=1, class_weight=None),
LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=0.5, fit_intercept=True, intercept_scaling=1, class_weight=None),
LogisticRegression(penalty='l1', dual=False, tol=0.0001, C=0.1, fit_intercept=True, intercept_scaling=1, class_weight=None)]
test = csv_io.read_data("PreProcessData/test_PreProcess2.csv", False)
dataset_blend_test_j = np.zeros((len(test), len(clfs)))
for ExecutionIndex, clf in enumerate(clfs):
#clf = LogisticRegression()
clf.fit(dataset_blend_train, target)
submission = clf.predict_proba(dataset_blend_test)[:,1]
submission = ["%f" % x for x in submission]
now = datetime.datetime.now()
csv_io.write_delimited_file_GUID("../Submissions/stack" + now.strftime("%Y%m%d%H%M%S") + ".csv", "PreProcessData/test_PatientGuid.csv", submission)
# attempt to score the training set to predict score for blend...
probSum = 0.0
trainPrediction = clf.predict_proba(dataset_blend_train)[:,1]
for i in range(0, len(trainPrediction)):
probX = trainPrediction[i]
if ( probX > 0.999):
probX = 0.999;
if ( probX < 0.001):
probX = 0.001;
probSum += int(target[i])*log(probX)+(1-int(target[i]))*log(1-probX)
print "Train Score: ", (-probSum/len(trainPrediction))
dataset_blend_test_j[:, ExecutionIndex] = submission
csv_io.write_delimited_file_GUID_numpy("../Submissions/stack_LG_" + now.strftime("%Y%m%d%H%M%S") + ".csv", "PreProcessData/test_PatientGuid.csv", dataset_blend_test_j.mean(1))
var = raw_input("Enter to terminate.")
def main():
training, target = csv_io.read_data("../Data/train.csv")
test, throwaway = csv_io.read_data("../Data/test.csv")
n_test = len(test)
n_target = len(set(target))
predicted_probs = [[0.001 for x in range(n_target)]
for y in range(n_test)]
predicted_probs = [["%f" % x for x in y] for y in predicted_probs]
csv_io.write_delimited_file("../Submissions/uniform_benchmark.csv",
predicted_probs)
def main():
train = csv_io.read_data("../Data/train.csv")
targets = [int(x[0]) for x in train]
num_targets = len(targets)
num_ones = np.sum(targets)
optimized_value = float(num_ones) / num_targets
test = csv_io.read_data("../Data/test.csv")
predicted_probs = ["%f" % optimized_value for x in test]
csv_io.write_delimited_file("../Submissions/optimized_value_benchmark.csv",
predicted_probs)
def main():
train = csv_io.read_data("../Data/train.csv")
target = [x[0] for x in train]
train = [x[1:] for x in train]
test = csv_io.read_data("../Data/test.csv")
svc = svm.SVC(probability=True)
svc.fit(train, target)
predicted_probs = svc.predict_proba(test)
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("../Submissions/svm_benchmark.csv",
predicted_probs)
def main():
train = csv_io.read_data("../Data/train.csv")
target = [x[0] for x in train]
train = [x[1:] for x in train]
test = csv_io.read_data("../Data/test.csv")
rf = RandomForestClassifier(n_estimators=100, min_split=2)
rf.fit(train, target)
predicted_probs = rf.predict_proba(test)
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("../Submissions/rf_benchmark.csv",
predicted_probs)
def main():
train = csv_io.read_data("../data/train.csv")
target = [x[0] for x in train]
train = [x[1:] for x in train]
test = csv_io.read_data("../data/test.csv")
svc = svm.SVC(probability=True)
svc.fit(train, target)
predicted_probs = svc.predict_proba(test)
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("../submissions/svm_benchmark.csv",
predicted_probs)
def PreProcessRun(dataSet):
print
print "DataSet: ", dataSet
print "Loading Data"
data = csv_io.read_data("PreProcessData/" + dataSet + "_PreProcess.csv",
split="\t",
skipFirstLine=False)
print dataSet, "Size: ", len(data[0])
if (dataSet == "training"): # do only once.
shutil.copy2("PreProcessData/DataClassList.csv",
"PreProcessData/DataClassList1.csv")
DataClassList = csv_io.read_data("PreProcessData/DataClassList1.csv",
False)
offset = 0
offset2 = 0
if (dataSet == "test"):
offset = 1
offset2 = -1
print DataClassList
print "Appending New Data"
firstTime = True
for row in data:
text = ""
val = row[136 + offset2] / row[139 + offset2]
row.append(val)
if (firstTime and dataSet == "training"): # do only once.
text = DataClassList[135 + offset][0] + "_DIV_" + DataClassList[
139 + offset][0]
csv_io.write_delimited_file("PreProcessData/DataClassList1.csv",
[text],
filemode="a")
if (firstTime):
print row[136 + offset2], row[139 + offset2], val, text
firstTime = False
csv_io.write_delimited_file("PreProcessData/" + dataSet +
"_PreProcess1.csv",
data,
delimiter="\t")
print "Done."
def main():
training, target = csv_io.read_data("../Data/train.csv")
training = [x[1:] for x in training]
target = [float(x) for x in target]
test, throwaway = csv_io.read_data("../Data/test.csv")
test = [x[1:] for x in test]
svc = svm.SVC(probability=True)
svc.fit(training, target)
predicted_probs = svc.predict_proba(test)
predicted_probs = [[min(max(x,0.001),0.999) for x in y]
for y in predicted_probs]
predicted_probs = [["%f" % x for x in y] for y in predicted_probs]
csv_io.write_delimited_file("../Submissions/svm_benchmark.csv",
predicted_probs)
def main():
training, target = csv_io.read_data("../Data/train.csv")
training = [x[1:] for x in training]
target = [float(x) for x in target]
test, throwaway = csv_io.read_data("../Data/test.csv")
test = [x[1:] for x in test]
svc = svm.SVC(probability=True)
svc.fit(training, target)
predicted_probs = svc.predict_proba(test)
predicted_probs = [[min(max(x, 0.001), 0.999) for x in y]
for y in predicted_probs]
predicted_probs = [["%f" % x for x in y] for y in predicted_probs]
csv_io.write_delimited_file("../Submissions/svm_benchmark.csv",
predicted_probs)
def main():
training, target = csv_io.read_data("../Data/train.csv")
training = [x[1:] for x in training]
target = [float(x) for x in target]
test, throwaway = csv_io.read_data("../Data/test.csv")
test = [x[1:] for x in test]
rf = RandomForestClassifier(n_estimators=100, min_split=2)
rf.fit(training, target)
predicted_probs = rf.predict_proba(test)
predicted_probs = [[min(max(x,0.001),0.999) for x in y]
for y in predicted_probs]
predicted_probs = [["%f" % x for x in y] for y in predicted_probs]
csv_io.write_delimited_file("../Submissions/rf_benchmark.csv",
predicted_probs)
def main():
np.random.seed(42)
#read in the training file
modelone = np.asarray(csv_io.read_data("results/gmm_pca12_6.csv",header=True))
modeltwo = np.asarray(csv_io.read_data("results/random_forest_solution-12pca-4.csv",header=True))
modelthree= np.asarray(csv_io.read_data("results/svm_pca12_5.csv",header=True))
bagmodel = np.column_stack((modelone[:,1], modeltwo[:,1], modelthree[:,1]))
bagsum = bagmodel.sum(axis=1)
predicted_class = np.zeros(bagsum.shape)
predicted_class[bagsum >=2] = 1
predicted_class = ["%d,%d" % (i+1, predicted_class[i]) for i in range(len(predicted_class))]
print predicted_class[0:9]
print(len(predicted_class))
csv_io.write_delimited_file("results/bagging_solution_7.csv", predicted_class, header=['Id', 'Solution'])
def main():
training, target = csv_io.read_data("../Data/train.csv")
training = [x[1:] for x in training]
target = [float(x) for x in target]
test, throwaway = csv_io.read_data("../Data/test.csv")
test = [x[1:] for x in test]
rf = RandomForestClassifier(n_estimators=100, min_split=2)
rf.fit(training, target)
predicted_probs = rf.predict_proba(test)
predicted_probs = [[min(max(x, 0.001), 0.999) for x in y]
for y in predicted_probs]
predicted_probs = [["%f" % x for x in y] for y in predicted_probs]
csv_io.write_delimited_file("../Submissions/rf_benchmark.csv",
predicted_probs)
def main(strat = False, visualization = False):
#read in the training file
X = csv_io.read_data("data/train.csv")
target = ravel(csv_io.read_data("data/trainLabels.csv"))
realtest = csv_io.read_data("data/test.csv")
print len(realtest)
#pca
pca = PCA(n_components=num_pca)
pca.fit(X)
train = pca.transform(X)
test_transformed = pca.transform(realtest)
print('performed pca')
# random forest code
clf = svm.SVC()
if strat:
print "stratified cross-validation on shuffled data"
# adapted from http://stackoverflow.com/a/8281241
crossval = []
for i in range(strat):
X, y = shuffle(train, target, random_state=i)
skf = StratifiedKFold(y, 10)
crossval.append([min(cross_val_score(clf, X, y, cv=skf)), np.median(cross_val_score(clf, X, y, cv=skf)), max(cross_val_score(clf, X, y, cv=skf))])
print crossval
if visualization:
print "preparing visualization"
data_train, data_test, target_train, target_test = train_test_split(train, target, test_size=0.20, random_state=42)
plot1 = drawLearningCurve(clf, data_train, target_train, data_test, target_test)
pp = PdfPages('figures/learningCurve.pdf')
pp.savefig(plot1)
pp.close()
print('fitting the model')
clf.fit(train, target)
# run model against test data
predicted_class = clf.predict(test_transformed)
print predicted_class[0:9]
print(len(predicted_class))
print('Writing output')
predicted_class = ["%d,%d" % (i+1, predicted_class[i]) for i in range(len(predicted_class))]
print predicted_class[0:9]
print(len(predicted_class))
csv_io.write_delimited_file("results/svm_pca12_5.csv", predicted_class, header=['Id', 'Solution'])
print ('Finished. Exiting.')
def Blend():
trainBase = csv_io.read_data("PreProcessData/training_PreProcess2.csv", False)
target = [x[0] for x in trainBase]
dataset_blend_train, dataset_blend_test = stack_knn.run_stack()
clf = LogisticRegression()
clf.fit(dataset_blend_train, target)
submission = clf.predict_proba(dataset_blend_test)[:,1]
submission = ["%f" % x for x in submission]
now = datetime.datetime.now()
csv_io.write_delimited_file_GUID("../Submissions/stack" + now.strftime("%Y%m%d%H%M") + ".csv", "PreProcessData/test_PatientGuid.csv", submission)
# attempt to score the training set to predict score for blend...
probSum = 0.0
trainPrediction = clf.predict_proba(dataset_blend_train)[:,1]
for i in range(0, len(trainPrediction)):
probX = trainPrediction[i]
if ( probX > 0.999):
probX = 0.999;
if ( probX < 0.001):
probX = 0.001;
probSum += int(target[i])*log(probX)+(1-int(target[i]))*log(1-probX)
print "Train Score: ", (-probSum/len(trainPrediction))
var = raw_input("Enter to terminate.")
def main():
train = csv_io.read_data("{}/Data/train.csv".format(os.getcwd()), True)
target = [float(x[0]) for x in train]
# Remove the target from the training
train = [x[1:] for x in train]
# Remove the categoricals that I can't convert
for x in train:
del x[1]
del x[1]
del x[5]
del x[6]
cats = preprocess.enum_categ_data(train, "f", 10)
preprocess.strf_to_floats(train, missing="average")
# test = csv_io.read_data("{}/Data/test.csv".format(os.getcwd()), True)
#
# # Remove the categoricals that I can't convert
# for x in test:
# del x[1]
# del x[1]
# del x[5]
# del x[6]
# I can't just run enum_categ_data on test data, need to match the right cat to the right index!!!
# cats = preprocess.enum_categ_data(test, 'f', 10)
# preprocess.strf_to_floats(test, missing='average')
rf = RandomForestClassifier(n_estimators=100, min_samples_split=2)
rf.fit(train, target)
print rf.score(train, target)
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./hotness_features.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
hotness_col = target
familaritycol = train[:, 30]
mydict = {}
familarity_classes = [0.0, 0.2, 0.4, 0.6, 0.8, 1.0]
for fclass in familarity_classes:
mydict[fclass]=[]
print len(target)
for i in range(0, len(target)):
key = familaritycol[i]
if (key < 0.2):
keyclass = 0.0
elif (key < 0.4):
keyclass = 0.2
elif (key < 0.6):
keyclass = 0.4
elif (key < 0.8):
keyclass = 0.6
else:
keyclass = 0.8
value = hotness_col[i]
mydict[keyclass].append(value)
print len(mydict[0.0]) + len(mydict[0.2]) + len(mydict[0.4]) + len(mydict[0.6]) + len(mydict[0.8])
plt.hist(mydict[0.8], normed=True)
plt.show()
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./filtered_classes.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
hotness_col = target
print "Length of target", len(hotness_col)
col = train[:, 5]
mydict = {}
mydict[0] = []
mydict[1] = []
for i in range(0, len(hotness_col)):
key = hotness_col[i]
val = col[i]
mydict[key].append(val)
mylabels = ['Not Hot','Hot']
print len(mydict[0]), len(mydict[1])
plt.hist([mydict[0], mydict[1]], label=mylabels, normed=True)
plt.xlabel('Artist Hotness')
plt.ylabel('Frequency of songs(normalized)')
plt.legend(loc='upper left')
plt.show()
def Blend():
trainBase = csv_io.read_data("PreProcessData/training_PreProcess2.csv",
False)
target = [x[0] for x in trainBase]
dataset_blend_train, dataset_blend_test = stack_gb.run_stack()
clf = LogisticRegression()
clf.fit(dataset_blend_train, target)
submission = clf.predict_proba(dataset_blend_test)[:, 1]
submission = ["%f" % x for x in submission]
now = datetime.datetime.now()
csv_io.write_delimited_file_GUID(
"../Submissions/stack_" + now.strftime("%Y%m%d%H%M") + ".csv",
"PreProcessData/test_PatientGuid.csv", submission)
# attempt to score the training set to predict score for blend...
probSum = 0.0
trainPrediction = clf.predict_proba(dataset_blend_train)[:, 1]
for i in range(0, len(trainPrediction)):
probX = trainPrediction[i]
if (probX > 0.999):
probX = 0.999
if (probX < 0.001):
probX = 0.001
probSum += int(
target[i]) * log(probX) + (1 - int(target[i])) * log(1 - probX)
print "Train Score: ", (-probSum / len(trainPrediction))
var = raw_input("Enter to terminate.")
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./hotness_features.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
plt.plot(train[:,0], target,'ro')
plt.xlim(-40,0)
plt.show()
def main():
train=csv_io.read_data("Data/train.csv")
train=train[0:10000]
target=[x[0] for x in train]
train=[x[1:] for x in train]
realtest=csv_io.read_data("Data/test.csv")
forest = RandomForestClassifier(n_estimators = 100)
forest=forest.fit(train,target)
predicted_probs=forest.predict_proba(realtest)
fr=open('Result2.csv','w')
fr.write("ImageId,Label"+"\n")
count=1
for y in predicted_probs:
index, value = max(enumerate(y), key=operator.itemgetter(1))
fr.write(str(count)+","+str(index)+"\n")
count+=1
fr.close()
def main():
train=csv_io.read_data("Data/train.csv")
train=train[0:3000]
target=[x[0] for x in train]
train=[x[1:] for x in train]
realtest=csv_io.read_data("Data/test.csv")
lr=LogisticRegression()
lr.fit(train,target)
predicted_probs=lr.predict_proba(realtest)
fr=open('Results.csv','w')
fr.write("ImageId,Label"+"\n")
count=1
for y in predicted_probs:
index, value = max(enumerate(y), key=operator.itemgetter(1))
fr.write(str(count)+","+str(index)+"\n")
count+=1
fr.close()
def main():
#read in data, parse into training and target sets
train = csv_io.read_data("./hotness_features_classes.csv")
target = np.array( [x[0] for x in train] )
train = np.array( [x[1:] for x in train] )
train_scaled = preprocessing.scale(train)
clf = tree.DecisionTreeClassifier(random_state = 0)
scores = cross_validation.cross_val_score(clf, train_scaled, target,None, cv=10)
print "Accuracy: %0.2f (+/- %0.2f)" % (scores.mean(), scores.std()/2)
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./hotness_features.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
mydict = {}
yearcol = train[:, 27]
durationcol = train[:, 2]
mydict[1960]=[]
mydict[1970]=[]
mydict[1980]=[]
mydict[1990]=[]
mydict[2000]=[]
mydict[2010]=[]
decade2010 = 0
for i in range(0,len(yearcol)) :
year = yearcol[i]
if ((year >= 1960) and (year < 1970)):
decade = 1960
elif ((year >= 1970) and (year < 1980)):
decade = 1970
elif ((year >=1980) and (year < 1990)):
decade = 1980
elif ((year >= 1990) and (year < 2000)):
decade = 1990
elif ((year >= 2000) and (year < 2010)):
decade = 2000
else:
decade2010 = decade2010 + 1
decade = 2010
mydict[decade].append(durationcol[i])
print decade2010
data = [mydict[1960], mydict[1970], mydict[1980], mydict[1990], mydict[2000], mydict[2010]]
labels = ['1960', '1970','1980','1990','2000','2010']
mean60 = np.mean(mydict[1960])
mean70 = np.mean(mydict[1970])
mean80 = np.mean(mydict[1980])
mean90 = np.mean(mydict[1990])
mean2000 = np.mean(mydict[2000])
mean2010 = np.mean(mydict[2010])
plt.hist(data,bins=10, normed=True, label=labels, histtype='bar', cumulative=True)
plt.legend()
plt.figure(2)
plt.plot(labels, [mean60, mean70, mean80, mean90, mean2000, mean2010], "ro")
plt.show()
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./filtered_classes_musiconly.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
train_scaled = preprocessing.scale(train)
clf = SVC(kernel='rbf', C=1000, gamma=0.001)
scores = cross_validation.cross_val_score(clf, train_scaled, target, metrics.classification_report, cv=10)
print scores
def PreProcessRun(dataSet):
print
print "DataSet: ", dataSet
print "Loading Data"
data = csv_io.read_data("PreProcessData/" + dataSet + "_PreProcess1.csv", split="\t" ,skipFirstLine = False)
print dataSet, "Size: ", len(data[0])
if ( os.path.exists("PreProcessData/" + dataSet + "_PreProcess2.csv") ):
os.remove("PreProcessData/" + dataSet + "_PreProcess2.csv")
SkipArr = [0,2,4,172]
DataClassList = csv_io.read_data("PreProcessData/DataClassList1.csv", False)
DataClassListNew = []
firstTime = True
for index, item in enumerate(data):
rowNew = []
#print item
for index, val in enumerate(item):
if dataSet == "training" and (index - 1) in SkipArr:
continue
elif dataSet == "test" and index in SkipArr:
continue
rowNew.append(val)
#print val
if dataSet == "test" and firstTime == True:
print DataClassList[index]
DataClassListNew.append(DataClassList[index])
csv_io.write_delimited_file("PreProcessData/" + dataSet + "_PreProcess2.csv", [copy.deepcopy(rowNew)], filemode="a", delimiter="\t")
firstTime = False
if dataSet == "test":
csv_io.write_delimited_file("PreProcessData/DataClassList2.csv", DataClassListNew)
print "Done."
def PostProcess():
lossThreshold = 4.0 # best seems to be about 4.0
model = "Long-Lat KNN5"
#used only for targets values.
trainBase = csv_io.read_data("PreProcessData/training_PreProcess4_40.csv",
skipFirstLine=False,
split="\t")
test = csv_io.read_data("PreProcessData/test_PreProcess4_40.csv", False)
weights = csv_io.read_data("PreProcessData/Weights.csv",
skipFirstLine=False)
target = [x[0] for x in trainBase]
stackFiles = []
for filename in os.listdir("../predictions"):
parts = filename.split("_")
if (filename[0:5] == "Stack" and float(parts[2]) < lossThreshold):
stackFiles.append(filename)
dataset_blend_train = np.zeros((len(trainBase), len(stackFiles)))
dataset_blend_test = np.zeros((len(test), len(stackFiles)))
print "Loading Data"
for fileNum, file in enumerate(stackFiles):
print file
trn = csv_io.read_data("../predictions/Target_" + file,
split=",",
skipFirstLine=False)
for row, datum in enumerate(trn):
dataset_blend_train[row, fileNum] = datum[0]
tst = csv_io.read_data("../predictions/" + file,
split=",",
skipFirstLine=False)
for row, datum in enumerate(tst):
dataset_blend_test[row, fileNum] = datum[0]
np.savetxt('temp/dataset_blend_trainX.txt', dataset_blend_train)
np.savetxt('temp/dataset_blend_testX.txt', dataset_blend_test)
np.savetxt('temp/dataset_blend_trainY.txt', target)
print "Num file processed: ", len(stackFiles), "Threshold: ", lossThreshold
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./filtered_classes.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
mydict = {}
yearcol = train[:, 9]
energycol = train[:, 13]
mydict[1960]=[]
mydict[1970]=[]
mydict[1980]=[]
mydict[1990]=[]
mydict[2000]=[]
mydict[2010]=[]
for i in range(0,len(yearcol)) :
year = yearcol[i]
if ((year >= 1960) and (year < 1970)):
decade = 1960
elif ((year >= 1970) and (year < 1980)):
decade = 1970
elif ((year >=1980) and (year < 1990)):
decade = 1980
elif ((year >= 1990) and (year < 2000)):
decade = 1990
elif ((year >= 2000) and (year < 2010)):
decade = 2000
else:
decade = 2010
mydict[decade].append(energycol[i])
mean60 = np.median(mydict[1960])
mean70 = np.median(mydict[1970])
mean80 = np.median(mydict[1980])
mean90 = np.median(mydict[1990])
mean2000 = np.median(mydict[2000])
mean2010 = np.median(mydict[2010])
print mean60, mean70, mean80, mean90, mean2000, mean2010
print len(mydict[1960]),len(mydict[1970]), len(mydict[1980]), len(mydict[1990]), len(mydict[2000]), len(mydict[2010])
data = [mydict[1960], mydict[1970], mydict[1980], mydict[1990], mydict[2000], mydict[2010]]
labels = ['1960', '1970', '1980', '1990', '2000','2010']
plt.hist(data, bins=20, normed=True, label=labels)
# plt.hist(mydict[1960],bins=50, normed=True, label='1960',histtype='stepfilled', cumulative=True)
# plt.hist(mydict[1980],bins=50, normed=True, label='1980', histtype='stepfilled', cumulative=True)
# plt.hist(mydict[2010],bins=50 ,normed=True, label='2010', histtype='stepfilled', cumulative=True)
plt.legend(loc='upper left')
plt.figure(2)
plt.plot(labels, [mean60, mean70, mean80, mean90, mean2000, mean2010])
plt.show()
def main():
et = csv_io.read_data("../Submissions/et_stack_avg_benchmark.csv", False)
rbf = csv_io.read_data(
"../Submissions/svm-rbf-bootstrap-stack_meanSpan_benchmark.csv", False)
poly = csv_io.read_data(
"../Submissions/svm-poly-bootstrap-stack_meanSpan_benchmark.csv",
False)
rf = csv_io.read_data("../Submissions/rf2_avg_benchmark.csv", False)
gb = csv_io.read_data("../Submissions/gb_avg_benchmark.csv", False)
stack = []
stack.append(et)
stack.append(rbf)
stack.append(poly)
stack.append(rf)
stack.append(gb)
spanDistance = 3
finalList = []
for p in range(0, len(stack[0])):
temp_list = []
for q in range(0, len(stack)):
temp_list.append(stack[q][p][0])
avg = sum(temp_list) / float(len(stack))
if (avg < 0.5):
finalList.append(0.2)
#finalList.append(min(temp_list))
print p, q, temp_list, avg, min(temp_list)
else:
finalList.append(0.80)
#finalList.append(max(temp_list))
print p, q, temp_list, avg, max(temp_list)
#finalList.append( meanSpan(temp_list, spanDistance) )
#print p, q, temp_list, meanSpan(temp_list, spanDistance)
finalStack = ["%f" % x for x in finalList]
csv_io.write_delimited_file("../Submissions/stack.csv", finalStack)
var = raw_input("Enter to terminate.")
def main():
et = csv_io.read_data("../Submissions/et_stack_avg_benchmark.csv", False)
rbf = csv_io.read_data("../Submissions/svm-rbf-bootstrap-stack_meanSpan_benchmark.csv", False)
poly = csv_io.read_data("../Submissions/svm-poly-bootstrap-stack_meanSpan_benchmark.csv", False)
rf = csv_io.read_data("../Submissions/rf2_avg_benchmark.csv", False)
gb = csv_io.read_data("../Submissions/gb_avg_benchmark.csv", False)
stack = []
stack.append(et)
stack.append(rbf)
stack.append(poly)
stack.append(rf)
stack.append(gb)
spanDistance = 3
finalList = []
for p in range(0, len(stack[0])):
temp_list =[]
for q in range(0, len(stack)):
temp_list.append( stack[q][p][0])
avg = sum(temp_list)/float(len(stack))
if ( avg < 0.5 ):
finalList.append(0.2)
#finalList.append(min(temp_list))
print p, q, temp_list, avg, min(temp_list)
else:
finalList.append(0.80)
#finalList.append(max(temp_list))
print p, q, temp_list, avg, max(temp_list)
#finalList.append( meanSpan(temp_list, spanDistance) )
#print p, q, temp_list, meanSpan(temp_list, spanDistance)
finalStack = ["%f" % x for x in finalList]
csv_io.write_delimited_file("../Submissions/stack.csv", finalStack)
var = raw_input("Enter to terminate.")
def PreProcess3():
filename = "stack201208301510"
data = csv_io.read_data("../Submissions/" + filename + ".csv", False)
data = SimpleScale(
data, floor=0.05,
ceiling=0.90) # took 0.389 score an lowered to 0.40, not good...
csv_io.write_delimited_file(
"../Submissions/" + filename + "_SimpleScale.csv", data)
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./hotness_features_classes.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
train_scaled = preprocessing.scale(train)
clf = SVC(kernel='linear')
selector = RFECV(clf, step=1, cv=10)
selector = selector.fit(train_scaled, target)
print selector.support_
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./filtered_classes.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
train_scaled = preprocessing.scale(train)
X_train, X_test, y_train, y_test = cross_validation.train_test_split(train_scaled, target, test_size = 0.8)
clf = SVC(kernel='linear', C=0.005).fit(X_train, y_train)
print clf.score(X_test, y_test)
def main():
#read in the training file
train = csv_io.read_data("train.csv")
#set the training responses
target = [x[0] for x in train]
#set the training features
train = [x[1:] for x in train]
#read in the test file
realtest = csv_io.read_data("test.csv")
# code for logistic regression
lr = LogisticRegression()
lr.fit(train, target)
predicted_probs = lr.predict_proba(realtest)
# write solutions to file
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("log_solution.csv", predicted_probs)
print ('Logistic Regression Complete! Submit log_solution.csv to Kaggle')
def main():
#read in data, parse into training and target sets
data = csv_io.read_data("./filtered_classes_musiconly.csv")
target = np.array( [x[0] for x in data] )
train = np.array( [x[1:] for x in data] )
train_scaled = preprocessing.scale(train)
X_train, X_test, y_train, y_test = cross_validation.train_test_split(train_scaled, target, test_size = 0.8)
clf = SVC(kernel='rbf', C = 1000.0, gamma=0.001).fit(X_train, y_train)
y_val_predict = clf.predict(X_test)
print metrics.zero_one_score(y_test, y_val_predict)
def main():
#read in the training file
train = csv_io.read_data("train.csv")
#set the training responses
target = [x[0] for x in train]
#set the training features
train = [x[1:] for x in train]
#read in the test file
realtest = csv_io.read_data("test.csv")
# code for logistic regression
lr = LogisticRegression()
lr.fit(train, target)
predicted_probs = lr.predict_proba(realtest)
# write solutions to file
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("log_solution.csv", predicted_probs)
print ('Logistic Regression Complete! Submit log_solution.csv to Kaggle')
def PostProcess():
lossThreshold = 4.0 # best seems to be about 4.0
model = "Long-Lat KNN5"
#used only for targets values.
trainBase = csv_io.read_data("PreProcessData/training_PreProcess4_40.csv", skipFirstLine = False, split = "\t")
test = csv_io.read_data("PreProcessData/test_PreProcess4_40.csv", False)
weights = csv_io.read_data("PreProcessData/Weights.csv", skipFirstLine = False)
target = [x[0] for x in trainBase]
stackFiles = []
for filename in os.listdir("../predictions"):
parts = filename.split("_")
if ( filename[0:5] == "Stack" and float(parts[2]) < lossThreshold):
stackFiles.append(filename)
dataset_blend_train = np.zeros((len(trainBase), len(stackFiles)))
dataset_blend_test = np.zeros((len(test), len(stackFiles)))
print "Loading Data"
for fileNum, file in enumerate(stackFiles):
print file
trn = csv_io.read_data("../predictions/Target_" + file, split="," ,skipFirstLine = False)
for row, datum in enumerate(trn):
dataset_blend_train[row, fileNum] = datum[0]
tst = csv_io.read_data("../predictions/" + file, split="," ,skipFirstLine = False)
for row, datum in enumerate(tst):
dataset_blend_test[row, fileNum] = datum[0]
np.savetxt('temp/dataset_blend_trainX.txt', dataset_blend_train)
np.savetxt('temp/dataset_blend_testX.txt', dataset_blend_test)
np.savetxt('temp/dataset_blend_trainY.txt', target)
print "Num file processed: ", len(stackFiles), "Threshold: ", lossThreshold
def mp_worker(fn):
data = csv_io.read_data(fn, 0, l=85)
np.random.shuffle(np.array(data))
#print len(data[0])
y = [x[len(x) - 1] for x in data]
X = [x[0:len(x) - 1] for x in data]
#print len(X), len(X[0])
lrf = LBLRFImbalanced(fn, X, y)
return
def Analyze1():
Threshold = 4.0
targetFile = "Target_Stack_20121017110223_3.06649134025_GradientBoos.csv"
trainBase = csv_io.read_data("PreProcessData/training_PreProcess3.csv",
skipFirstLine=False,
split="\t")
shutil.copy2("PreProcessData/test_PreProcess3.csv",
"PreProcessData/test_PreProcess8.csv")
shutil.copy2("PreProcessData/DataClassList3.csv",
"PreProcessData/DataClassList8.csv")
weights = csv_io.read_data("PreProcessData/Weights.csv",
skipFirstLine=False)
target = [x[0] for x in trainBase]
print "Loading Data"
trainNew = []
probSum = 0.0
weightSum = 0
trn = csv_io.read_data("../predictions/" + targetFile,
split=",",
skipFirstLine=False)
for row, datum in enumerate(trn):
if (abs(datum[0] - target[row]) > Threshold):
print datum[0], target[row]
trainNew.append(trainBase[row])
probSum += weights[row][0] * math.fabs(target[row] - datum[0])
weightSum += weights[row][0]
print "Train Score: ", (probSum / weightSum)
print len(trainNew)
csv_io.write_delimited_file("PreProcessData/training_PreProcess8" + ".csv",
trainNew,
delimiter="\t")
def main():
#read in the training file
train = csv_io.read_data("train.csv")
#set the training responses
target = [x[0] for x in train]
#set the training features
train = [x[1, 3, 4, 5, 6] for x in train]
#read in the test file
realtest = csv_io.read_data("test.csv")
# random forest code
rf = RandomForestClassifier(n_estimators=10)
# fit the training data
print('fitting the model')
rf.fit(train, target)
# run model against test data
predicted_probs = rf.predict_proba(realtest)
predicted_probs = ["%f" % x[1] for x in predicted_probs]
csv_io.write_delimited_file("random_forest_solution.csv", predicted_probs)
def main():
train = csv_io.read_data("../Data/train.csv")
target = [x[0] for x in train][1:] # skip the headers
probabilities = csv_io.read_data("../Submissions/svm_benchmark.csv")
prob = [x[0] for x in probabilities]
probSum = 0
for i in range(0, len(prob)):
#tempProb = max(prob[i], 0.000001)
#tempProb = min(tempProb, 0.999999)
#tempProb = max(prob[i], 0.1)
#tempProb = min(tempProb, 0.9)
print i, probSum, prob[i], target[i]
print target[i] * log(prob[i]), (1 - target[i]) * log(1 - prob[i])
probSum += target[i] * log(
prob[i]) + (1 - target[i]) * log(1 - prob[i])
print probSum
print len(prob)
print -probSum / len(prob)
#result = (-1/len(probs))*mySum;
var = raw_input("Enter to terminate.")
def getBenchmark(test_label):
tfile = open('MyBenchmark.csv', 'wb')
test_info = csv_io.read_data('test_info.csv')
try:
twriter = csv.writer(tfile, delimiter=',')
twriter.writerow(['Id', 'Prediction'])
index = 0
print np.array(test_info)
print test_info[0][0], test_label[0]
#print np.array(test_info)
for id in test_info:
#print 'converted line', index
twriter.writerow([int(id[0]), test_label[index]])
index += 1
finally:
tfile.close()
def runKmeans(data_file):
train_data = csv_io.read_data(data_file)
print len(train_data)
num_clusters = 10
model = KMeans(init='k-means++', n_clusters=num_clusters, n_init=10)
max_score = 0
iteration = 2
best_classification = []
for i in range(1, iteration):
print "Iteration number " + str(i)
model.fit(train_data)
score = model.score(train_data)
if i == 1 or score > max_score:
max_score = score
best_classification = model.predict(train_data)
print len(best_classification.tolist())
return best_classification.tolist()
def run_stack(SEED):
model = "Long-Lat KNN5 - 50 Features"
print "Running GB, RF, ET stack."
trainBase = csv_io.read_data("PreProcessData/training_PreProcess4_50.csv", skipFirstLine = False, split = "\t")
test = csv_io.read_data("PreProcessData/test_PreProcess4_50.csv", skipFirstLine = False, split = "\t")
weights = csv_io.read_data("PreProcessData/Weights.csv", skipFirstLine = False)
#random.seed(SEED)
#random.shuffle(trainBase)
avg = 0
NumFolds = 5 # 5 is good, but 10 yeilds a better mean since outliers are less significant. (note, predictions are less reliable when using 10).
predicted_list = []
bootstrapLists = []
# use this for quick runs.
# note RF with 150 crashes on 30 features
# GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=50),
# GradientBoostingRegressor(learn_rate=0.02, subsample=0.2, max_depth=8, n_estimators=125),
# RandomForestRegressor(n_estimators=100, n_jobs=1),
#RandomForestRegressor(n_estimators=75, n_jobs=1),
# clfs = [ExtraTreesRegressor(n_estimators=50, min_density=0.2, n_jobs=1, bootstrap=True, random_state=1),
# SVC(C=1.0, cache_size=200, class_weight=None, coef0=0.0, degree=3, gamma=2**-5.5, kernel='rbf', probability=False, shrinking=True, tol=0.001, verbose=False)
# ]
#knn 5 at 3.45
#knn 15 at 3.31
#knn 25 at 3.30
#knn 40 at 3.31
# KNeighborsRegressor(n_neighbors=5, weights='uniform', algorithm='auto', leaf_size=30, warn_on_equidistant=False, p=2),
# KNeighborsRegressor(n_neighbors=15, weights='uniform', algorithm='auto', leaf_size=30, warn_on_equidistant=False, p=2),
# KNeighborsRegressor(n_neighbors=25, weights='uniform', algorithm='auto', leaf_size=30, warn_on_equidistant=False, p=2),
# LinearRegression at 3.77
# Ridge at 3.77
# SGD 4.23
#Gauss at 13
# LinearRegression(fit_intercept=True, normalize=False, copy_X=True),
# Ridge(alpha=1.0, fit_intercept=True, normalize=False, copy_X=True, tol=0.001),
# SGDRegressor(loss='squared_loss', penalty='l2', alpha=0.0001, rho=0.84999999999999998, fit_intercept=True, n_iter=5, shuffle=False, verbose=0, epsilon=0.10000000000000001, p=None, seed=0, learning_rate='invscaling', eta0=0.01, power_t=0.25, warm_start=False),
# GaussianNB()
# clfs = [KNeighborsRegressor(n_neighbors=15, weights='uniform', algorithm='auto', leaf_size=30, warn_on_equidistant=False, p=2),
# KNeighborsRegressor(n_neighbors=25, weights='uniform', algorithm='auto', leaf_size=30, warn_on_equidistant=False, p=2),KNeighborsRegressor(n_neighbors=35, weights='uniform', algorithm='auto', leaf_size=30, warn_on_equidistant=False, p=2)
# ]
# GB, 125 est is minimum, score is bad below this, explore higher and other dimensions. ******************
# clfs = [GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=100, random_state=166),
# GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=8, n_estimators=100, random_state=166),
# GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=10, n_estimators=100, random_state=166),
# GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=200, random_state=166),
# GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=8, n_estimators=200, random_state=166),GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=10, n_estimators=200, random_state=166)
# ]
# about 1 hour run time, and 3.10 score.
#GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=400, random_state=166)
# about 2 hours run time at 3.05
#GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=8, n_estimators=400, random_state=166)
# about 2 hours run time at 3.06
#GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=800, random_state=166)
# about 4 hours run time at 3.06
#GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=8, n_estimators=800, random_state=166)
clfs = [GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=3000, random_state=166)
]
# use this for quick runs.
# clfs = [GradientBoostingClassifier(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=50, random_state=166),
# GradientBoostingClassifier(learn_rate=0.02, subsample=0.2, max_depth=8, n_estimators=125, random_state=551),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=80, random_state=441),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=80, random_state=331),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=80, random_state=221),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=120, random_state=91),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=120, random_state=81),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=120, random_state=71),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=160, random_state=61),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=160, random_state=51),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=160, random_state=41),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=200, random_state=31),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=200, random_state=21),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=200, random_state=10),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=200, random_state=19),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=240, random_state=18),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=240, random_state=17),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=240, random_state=16),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=280, random_state=15),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=280, random_state=14),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=280, random_state=13),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=320, random_state=12),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=320, random_state=11),
# RandomForestClassifier(n_estimators=100, n_jobs=1, criterion='gini'),
# RandomForestClassifier(n_estimators=100, n_jobs=1, criterion='entropy'),
# ExtraTreesClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='gini', bootstrap=True, random_state=1),
# ExtraTreesClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='entropy', bootstrap=True, random_state=5)]
# use this for quick runs. reduced estimators to 50
# clfs = [SVC(C=1.0, cache_size=200, class_weight=None, coef0=0.0, degree=3,
# gamma=2**-5.5, kernel='rbf', probability=False, shrinking=True,
# tol=0.001, verbose=False)
# ]
#GradientBoostingRegressor(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=50),
#ExtraTreesRegressor(n_estimators=50, min_density=0.2, n_jobs=1, bootstrap=True, random_state=1)
# clfs = [ExtraTreesClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='gini', bootstrap=True, random_state=1),
# ExtraTreesClassifier(n_estimators=150, min_density=0.09, n_jobs=1, criterion='gini', bootstrap=True, random_state=2),
# ExtraTreesClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='entropy', bootstrap=True, random_state=5),
# ExtraTreesClassifier(n_estimators=150, min_density=0.09, n_jobs=1, criterion='entropy', bootstrap=True, random_state=6),
# GradientBoostingClassifier(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=50),
# GradientBoostingClassifier(learn_rate=0.02, subsample=0.2, max_depth=8, n_estimators=125),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=80),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=80),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=80),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=120),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=120),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=120),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=160),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=160),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=160),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=200),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=200),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=200),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=200),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=240),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=240),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=240),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=280),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=280),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=280),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=320),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=320),
# RandomForestClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='gini', bootstrap=True, random_state=1),
# RandomForestClassifier(n_estimators=150, min_density=0.09, n_jobs=1, criterion='gini', bootstrap=True, random_state=2),
# RandomForestClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='entropy', bootstrap=True, random_state=5),
# RandomForestClassifier(n_estimators=150, min_density=0.05, n_jobs=1, criterion='entropy', bootstrap=True, random_state=7)]
# full algorithm stack.
# clfs = [ExtraTreesClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='gini', bootstrap=True, random_state=1),
# ExtraTreesClassifier(n_estimators=150, min_density=0.09, n_jobs=1, criterion='gini', bootstrap=True, random_state=2),
# ExtraTreesClassifier(n_estimators=150, min_density=0.05, n_jobs=1, criterion='gini', bootstrap=True, random_state=3),
# ExtraTreesClassifier(n_estimators=150, min_density=0.02, n_jobs=1, criterion='gini', bootstrap=True, random_state=4),
# ExtraTreesClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='entropy', bootstrap=True, random_state=5),
# ExtraTreesClassifier(n_estimators=150, min_density=0.09, n_jobs=1, criterion='entropy', bootstrap=True, random_state=6),
# ExtraTreesClassifier(n_estimators=150, min_density=0.05, n_jobs=1, criterion='entropy', bootstrap=True, random_state=7),
# ExtraTreesClassifier(n_estimators=150, min_density=0.02, n_jobs=1, criterion='entropy', bootstrap=True, random_state=8),
# GradientBoostingClassifier(learn_rate=0.05, subsample=0.5, max_depth=6, n_estimators=50),
# GradientBoostingClassifier(learn_rate=0.02, subsample=0.2, max_depth=8, n_estimators=125),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=80),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=80),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=80),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=120),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=120),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=120),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=160),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=160),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=160),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=200),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=200),
# GradientBoostingClassifier(lesarn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=200),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=4, n_estimators=200),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=240),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=240),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=240),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=280),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=280),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=3, n_estimators=280),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=1, n_estimators=320),
# GradientBoostingClassifier(learn_rate=0.01, subsample=0.2, max_depth=2, n_estimators=320),
# RandomForestClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='gini', bootstrap=True, random_state=1),
# RandomForestClassifier(n_estimators=150, min_density=0.09, n_jobs=1, criterion='gini', bootstrap=True, random_state=2),
# RandomForestClassifier(n_estimators=150, min_density=0.05, n_jobs=1, criterion='gini', bootstrap=True, random_state=3),
# RandomForestClassifier(n_estimators=150, min_density=0.02, n_jobs=1, criterion='gini', bootstrap=True, random_state=4),
# RandomForestClassifier(n_estimators=150, min_density=0.2, n_jobs=1, criterion='entropy', bootstrap=True, random_state=5),
# RandomForestClassifier(n_estimators=150, min_density=0.09, n_jobs=1, criterion='entropy', bootstrap=True, random_state=6),
# RandomForestClassifier(n_estimators=150, min_density=0.05, n_jobs=1, criterion='entropy', bootstrap=True, random_state=7),
# RandomForestClassifier(n_estimators=150, min_density=0.02, n_jobs=1, criterion='entropy', bootstrap=True, random_state=8)]
print "Data size: ", len(trainBase), len(test)
dataset_blend_train = np.zeros((len(trainBase), len(clfs)))
dataset_blend_test = np.zeros((len(test), len(clfs)))
trainNew = []
trainTestNew = []
testNew = []
trainNewSelect = []
trainTestNewSelect = []
testNewSelect = []
print "Scaling"
targetPre = [x[0] for x in trainBase]
trainPre = [x[1:] for x in trainBase]
testPre = [x[0:] for x in test]
#print trainPre[0]
scaler = preprocessing.Scaler().fit(trainPre)
trainScaled = scaler.transform(trainPre)
testScaled = scaler.transform(testPre)
#print scaler.mean_
#print scaler.std_
print "Begin Training"
for ExecutionIndex, clf in enumerate(clfs):
print str(clf)
avg = 0
predicted_list = []
dataset_blend_test_set = np.zeros((len(test), NumFolds))
foldCount = 0
#Stratified for classification...[trainBase[i][0] for i in range(len(trainBase))]
Folds = cross_validation.KFold(len(trainBase), k=NumFolds, indices=True)
for train_index, test_index in Folds:
#trainBaseTemp = [trainBase[i] for i in train_index]
#target = [x[0] for x in trainBaseTemp]
#train = [x[1:] for x in trainBaseTemp]
#testBaseTemp = [trainBase[i] for i in test_index]
#targetTest = [x[0] for x in testBaseTemp]
#trainTest = [x[1:] for x in testBaseTemp]
#test = [x[0:] for x in test]
target = [targetPre[i] for i in train_index]
train = [trainScaled[i] for i in train_index]
targetTest = [targetPre[i] for i in test_index]
trainTest = [trainScaled[i] for i in test_index]
print
print "Iteration: ", foldCount
print "LEN: ", len(train), len(target)
clf.fit(train, target)
prob = clf.predict(trainTest)
dataset_blend_train[test_index, ExecutionIndex] = prob
probSum = 0
weightSum = 0
# totalOffByHalf = 0
# totalPositive = 0
# totalPositiveOffByHalf = 0
# totalPositivePredictions = 0
for i in range(0, len(prob)):
probX = prob[i]
probSum += weights[test_index[i]][0] * math.fabs(targetTest[i] - probX)
weightSum += weights[test_index[i]][0]
#print "Weight", weights[test_index[i]][0], "Index: ",i, "Test_Index: ",test_index[i] , "Actual: ", targetTest[i], "Predicted: ", probX
# log loss cal
#probSum += int(targetTest[i])*log(probX)+(1-int(targetTest[i]))*log(1-probX)
# if ( math.fabs(probX - int(targetTest[i])) > 0.5 ):
# totalOffByHalf = totalOffByHalf + 1
# if ( int(targetTest[i]) == 1 ):
# totalPositive = totalPositive + 1
# if ( int(targetTest[i]) == 1 and probX < 0.5):
# totalPositiveOffByHalf = totalPositiveOffByHalf + 1
# if (probX > 0.5):
# totalPositivePredictions = totalPositivePredictions + 1
# print
# print "Stats:"
# print "Total Off By > 0.5 ", totalOffByHalf
# print "Total Positive ", totalPositive
# print "Total Positive Off By Half ", totalPositiveOffByHalf
# print "Total Positive Predictions ", totalPositivePredictions
#print -probSum/len(prob)
print "Score: ", probSum/weightSum
avg += (probSum/weightSum)/NumFolds
predicted_probs = clf.predict(testScaled)
#predicted_list.append([x[1] for x in predicted_probs])
dataset_blend_test_set[:, foldCount] = predicted_probs #[0]
foldCount = foldCount + 1
dataset_blend_test[:,ExecutionIndex] = dataset_blend_test_set.mean(1)
#print "Saving NP"
#np.savetxt('temp/dataset_blend_test_set.txt', dataset_blend_test_set)
#np.savetxt('temp/dataset_blend_test_set.mean.txt', dataset_blend_test_set.mean(1) )
#np.savetxt('temp/dataset_blend_test.txt', dataset_blend_test)
#print "Done Saving NP"
now = datetime.datetime.now()
#print dataset_blend_test_set.mean(1)
csv_io.write_delimited_file_single("../predictions_50/Stack_" + now.strftime("%Y%m%d%H%M%S") + "_" + str(avg) + "_" + str(clf)[:12] + ".csv", dataset_blend_test_set.mean(1))
csv_io.write_delimited_file_single("../predictions_50/Target_Stack_" + now.strftime("%Y%m%d%H%M%S") + "_" + str(avg) + "_" + str(clf)[:12] + ".csv", dataset_blend_train[:,ExecutionIndex] )
csv_io.write_delimited_file("../predictions_40/RunLog.csv", [now.strftime("%Y %m %d %H %M %S"), str(avg), str(clf), str(NumFolds), model, "", ""], filemode="a",delimiter=",")
print now
print "------------------------Average: ", avg
#np.savetxt('temp/dataset_blend_train.txt', dataset_blend_train)
return dataset_blend_train, dataset_blend_test
def PreProcess3():
trainBase = csv_io.read_data("PreProcessData/training_PreProcess2.csv",
split="\t",
skipFirstLine=False)
test = csv_io.read_data("PreProcessData/test_PreProcess2.csv",
split="\t",
skipFirstLine=False)
weights = csv_io.read_data("PreProcessData/Weights.csv",
skipFirstLine=False)
print "Train Size: ", len(trainBase[0]), "Test Size: ", len(test[0])
shutil.copy2("PreProcessData/DataClassList2.csv",
"PreProcessData/DataClassList3.csv")
lat = len(trainBase[0]) - 2
long = len(trainBase[0]) - 1
target = [x[0] for x in trainBase]
train = [x[lat:long + 1] for x in trainBase]
n_neighborsArr = [5]
leaf_sizeArr = [30]
for n_neighbor in n_neighborsArr:
for leaf_s in leaf_sizeArr:
print "Training neighbors: ", n_neighbor, "leaf_size: ", leaf_s
neigh = KNeighborsRegressor(n_neighbors=n_neighbor,
warn_on_equidistant=False,
leaf_size=leaf_s,
algorithm="ball_tree",
weights=myFunc)
neigh.fit(train, target)
probSum = 0
weightSum = 0
for index, data in enumerate(trainBase):
pred = neigh.predict([data[lat], data[long]])
#print data[lat], data[long], "Prediction: ", pred[0], "Target: ", target[index]
if (len(n_neighborsArr) == 1):
trainBase[index].append(pred[0])
probSum += weights[index][0] * math.fabs(target[index] -
pred[0])
weightSum += weights[index][0]
print "Score: ", probSum / weightSum
if (len(n_neighborsArr) > 1):
continue
for index, data in enumerate(test):
pred = neigh.predict([data[lat - 1], data[long - 1]])
#print data[lat - 1], data[long - 1], "Prediction: ", pred[0]
if (len(n_neighborsArr) == 1):
test[index].append(pred[0])
if (len(n_neighborsArr) > 1):
return
with open("PreProcessData/DataClassList3.csv", "a") as myfile:
myfile.write("Lat-Long-Predictor\n")
print "Writing Data"
csv_io.write_delimited_file("PreProcessData/training_PreProcess3.csv",
trainBase,
delimiter="\t")
csv_io.write_delimited_file("PreProcessData/test_PreProcess3.csv",
test,
delimiter="\t")
print "Done."
def run_stack(SEED):
model = "Lasso"
lossThreshold = 0.38
trainBaseTarget = pd.read_csv('../preprocessdata/pre_shuffled_target.csv')
trainBaseOrig = pd.read_csv('../models/' + model + '_train.csv')
trainBaseWeight = trainBaseOrig['var11']
testOrig = pd.read_csv('../models/' + model + '_test.csv')
targetBase = np.nan_to_num(np.array(trainBaseTarget))
trainBaseID = trainBaseOrig['id']
testID = testOrig['id']
avg = 0
NumFolds = 5
stackFiles = []
for filename in os.listdir("../predictions"):
parts = filename.split("_")
if (filename[0:5] == "Stack" and float(parts[2]) > lossThreshold):
stackFiles.append(filename)
trainBase = np.zeros((len(trainBaseOrig), len(stackFiles)))
test = np.zeros((len(testOrig), len(stackFiles)))
print("Loading Data")
for fileNum, file in enumerate(stackFiles):
print(file)
trn = csv_io.read_data(
"../predictions/Target_" + file, split=",",
skipFirstLine=True) # skip first because of header.
for row, datum in enumerate(trn):
trainBase[row, fileNum] = datum[1] # -1 because we skil
tst = csv_io.read_data(
"../predictions/" + file, split=",",
skipFirstLine=True) # skip first because of header.
for row, datum in enumerate(tst):
test[row, fileNum] = datum[1]
np.savetxt('temp/dataset_blend_train.txt', trainBase)
np.savetxt('temp/dataset_blend_test.txt', test)
print("Num file processed: " + " " + str(len(stackFiles)) + " " +
"Threshold: " + str(lossThreshold))
print("Starting Scale")
allVals = np.vstack((trainBase, test))
scl = StandardScaler(copy=True, with_mean=True, with_std=True)
scl.fit(allVals) # should fit on the combined sets.
trainBase = scl.transform(trainBase)
test = scl.transform(test)
print("Starting Blend")
clfs = [
#GradientBoostingRegressor(loss='ls', learning_rate=0.05, subsample=0.5, max_depth=10, n_estimators=30, random_state=166, min_samples_leaf=1),
Lasso(alpha=0.000016681005372000593),
#Ridge(),
#LinearRegression(fit_intercept=True, normalize=False, copy_X=True)
]
print("Data size: " + str(len(trainBase)) + " " + str(len(test)))
dataset_blend_train = np.zeros((len(trainBase), len(clfs)))
dataset_blend_test = np.zeros((len(test), len(clfs)))
print("Begin Training")
lenTrainBase = len(trainBase)
lenTest = len(test)
gc.collect()
for ExecutionIndex, clf in enumerate(clfs):
print(clf)
avg = 0
dataset_blend_test_set = np.zeros((lenTest, NumFolds))
foldCount = 0
Folds = cross_validation.KFold(lenTrainBase,
n_folds=NumFolds,
indices=True)
for train_index, test_index in Folds:
print()
print("Iteration: " + str(foldCount))
now = datetime.datetime.now()
print(now.strftime("%Y/%m/%d %H:%M:%S"))
target = [targetBase[i] for i in train_index]
train = [trainBase[i] for i in train_index]
weight = [trainBaseWeight[i] for i in train_index]
targetTest = [targetBase[i] for i in test_index]
trainTest = [trainBase[i] for i in test_index]
weightTest = [trainBaseWeight[i] for i in test_index]
#print "LEN: ", len(train), len(target)
target = np.array(np.reshape(target, (-1, 1)))
#train = np.array(np.reshape(train, (-1, 1)) )
weight = np.array(np.reshape(weight, (-1, 1)))
targetTest = np.array(np.reshape(targetTest, (-1, 1)))
#trainTest = np.array(np.reshape(trainTest, (-1, 1)) )
weightTest = np.array(np.reshape(weightTest, (-1, 1)))
#clf.fit(train, target, sample_weight = weight
clf.fit(train, target)
predicted = clf.predict(trainTest)
#print(predicted[:,0])
print(predicted)
dataset_blend_train[
test_index,
ExecutionIndex] = predicted #[:,0] #needed for Ridge
#print(targetTest.shape)
#print(prpredictedob.shape)
#print(weightTest.shape)
print(
str(
score.normalized_weighted_gini(targetTest.ravel(),
predicted.ravel(),
weightTest.ravel())))
avg += score.normalized_weighted_gini(
targetTest.ravel(), predicted.ravel(),
weightTest.ravel()) / NumFolds
#print(str(score.normalized_weighted_gini(targetTest.ravel(), predicted[:,0], weightTest.ravel())))
#avg += score.normalized_weighted_gini(targetTest.ravel(), predicted[:,0], weightTest.ravel())/NumFolds
predicted = clf.predict(test)
dataset_blend_test_set[:, foldCount] = predicted #[:,0]
foldCount = foldCount + 1
#break
dataset_blend_test[:, ExecutionIndex] = dataset_blend_test_set.mean(1)
now = datetime.datetime.now()
#print dataset_blend_test_set.mean(1)
#csv_io.write_delimited_file_single("../predictions/Stack_" + now.strftime("%Y%m%d%H%M%S") + "_" + str(avg) + "_" + str(clf)[:12] + ".csv", dataset_blend_test_set.mean(1))
submission = pd.DataFrame(np.zeros((len(testID), 2)),
columns=['id', 'target'])
submission['target'] = dataset_blend_test[:, ExecutionIndex]
submission['id'] = testID
submission.to_csv("../submission/Blend_" +
now.strftime("%Y%m%d%H%M%S") + "_" + str(avg) + "_" +
str(clf)[:12] + ".csv",
index=False)
#csv_io.write_delimited_file_single("../predictions/Target_Stack_" + now.strftime("%Y%m%d%H%M%S") + "_" + str(avg) + "_" + str(clf)[:12] + ".csv", dataset_blend_train[:,ExecutionIndex] )
submission = pd.DataFrame(np.zeros((len(trainBaseID), 2)),
columns=['id', 'target'])
submission['target'] = dataset_blend_train[:, ExecutionIndex]
submission['id'] = trainBaseID
submission.to_csv("../submission/Target_Blend_" +
now.strftime("%Y%m%d%H%M%S") + "_" + str(avg) + "_" +
str(clf)[:12] + ".csv",
index=False)
csv_io.write_delimited_file("../log/RunLogBlend.csv", [
now.strftime("%Y %m %d %H %M %S"), "AVG.",
str(avg),
str(clf), "Folds:",
str(NumFolds), "Model", "Blend", "Stacks: ", stackFiles
],
filemode="a",
delimiter=",")
print("------------------------Average: " + str(avg))
#np.savetxt('temp/dataset_blend_train.txt', dataset_blend_train)
return dataset_blend_train, dataset_blend_test
def main():
trainBase = csv_io.read_data("PreProcessData/PreProcess2.csv", False)
avg = 0
NumFolds = 5 # should be odd for median
predicted_list = []
spanDistance = 12
bootstrapLists = []
NeighborsArray = [10]
for Neighbors in NeighborsArray:
predicted_list = []
Folds = cross_validation.KFold(len(trainBase) - 1,
k=NumFolds,
indices=True,
shuffle=False,
random_state=None)
for train_index, test_index in Folds:
trainBaseTemp = [trainBase[i + 1] for i in train_index]
#trainBaseTemp = trainBase
target = [x[0] for x in trainBaseTemp]
train = [x[1:] for x in trainBaseTemp]
testBaseTemp = [trainBase[i + 1] for i in test_index]
#testBaseTemp = trainBase
targetTest = [x[0] for x in testBaseTemp]
trainTest = [x[1:] for x in testBaseTemp]
test = csv_io.read_data("PreProcessData/PreTestData2.csv", False)
test = [x[0:] for x in test]
kn = neighbors.KNeighborsClassifier(n_neighbors=Neighbors,
weights='distance',
algorithm='brute',
leaf_size=100,
warn_on_equidistant=True,
p=2)
kn.fit(train, target)
prob = kn.predict(trainTest)
prob = SimpleScale(prob) # scale output probababilities
probSum = 0
totalOffByHalf = 0
totalPositive = 0
totalPositiveOffByHalf = 0
totalPositivePredictions = 0
for i in range(0, len(prob)):
probX = prob[i][1] # [1]
if (probX > 0.999):
probX = 0.999
if (probX < 0.001):
probX = 0.001
#print i, probSum, probX, targetTest[i]
#print target[i]*log(probX), (1-target[i])*log(1-probX)
probSum += int(targetTest[i]) * log(probX) + (
1 - int(targetTest[i])) * log(1 - probX)
if (math.fabs(probX - int(targetTest[i])) > 0.5):
totalOffByHalf = totalOffByHalf + 1
if (int(targetTest[i]) == 1):
totalPositive = totalPositive + 1
if (int(targetTest[i]) == 1 and probX < 0.5):
totalPositiveOffByHalf = totalPositiveOffByHalf + 1
if (probX > 0.5):
totalPositivePredictions = totalPositivePredictions + 1
print "Total Off By > 0.5 ", totalOffByHalf
print "Total Positive ", totalPositive
print "Total Positive Off By Half ", totalPositiveOffByHalf
print "Total Positive Predictions ", totalPositivePredictions
print "Neighbors: ", Neighbors
print -probSum / len(prob)
avg += (-probSum / len(prob)) / NumFolds
predicted_probs = kn.predict(test) # was test
prob = SimpleScale(prob) # scale output probababilities
predicted_list.append([x[1] for x in predicted_probs])
avg_list = []
med_list = []
# For N folds, get the average/median for each prediction item in test set.
for p in range(0, len(test)):
temp_list = []
for q in range(0, len(predicted_list)):
temp_list.append(predicted_list[q][p])
avg_list.append(mean(temp_list))
med_list.append(getMedian(temp_list))
#print p, q, temp_list, mean(temp_list), getMedian(temp_list)
bootstrapLists.append(avg_list)
# This would be used if we ran multiple runs with different training values.
# Primitive stacking, should rather save data, and do formal stacking.
if (len(bootstrapLists) > 1):
finalList = []
for p in range(0, len(test)):
temp_list = []
for q in range(0, len(bootstrapLists)):
temp_list.append(bootstrapLists[q][p])
finalList.append(meanSpan(temp_list, spanDistance))
print p, q, temp_list, meanSpan(temp_list, spanDistance)
else:
finalList = bootstrapLists[0]
avg_values = ["%f" % x for x in finalList]
csv_io.write_delimited_file("../Submissions/rf2_stack_avg.csv", avg_values)
print "Average: ", avg
var = raw_input("Enter to terminate.")
def PreProcess4(N_Features):
trainBase = csv_io.read_data("PreProcessData/training_PreProcess3.csv",
skipFirstLine=False,
split="\t")
test = csv_io.read_data("PreProcessData/test_PreProcess3.csv",
skipFirstLine=False,
split="\t")
shutil.copy2("PreProcessData/DataClassList3.csv",
"PreProcessData/DataClassList4.csv")
target = [x[0] for x in trainBase]
train = [x[1:] for x in trainBase]
DataClassList = csv_io.read_data("PreProcessData/DataClassList4.csv",
False)
print "Data len: ", len(train[0])
print "DataClassList len: ", len(DataClassList)
#return
# this seems about optimal, but has not been tuned on latest improvements.
NumFeatures = N_Features
# NOTE going from 30 to 20 features on KNN5 set has almost no effect. Down to 15 is significant loss.
# for GBM at 6 and 400 30 is 3.01 and 30 3.05.
print "Scaling"
term = 5000 # scaler has memory errors between 5000 and 10000
#term = len(trainBase)
targetPre = [x[0] for x in trainBase][0:term]
trainPre = [x[1:] for x in trainBase][0:term]
#testPre = [x[0:] for x in test][0:term]
targetPre = target[0:term]
#print trainPre[term - 1]
scaler = preprocessing.Scaler().fit(trainPre)
trainScaled = scaler.transform(trainPre)
#testScaled = scaler.transform(testPre)
#clf = RandomForestRegressor(n_estimators=25, n_jobs=1,compute_importances=True)
clf = GradientBoostingRegressor(loss='ls',
learn_rate=0.05,
subsample=0.5,
max_depth=6,
n_estimators=400,
random_state=166,
min_samples_leaf=30)
print "Training"
clf.fit(trainScaled, targetPre)
trainNew = []
testNew = []
print "Computing Importances"
importances = clf.feature_importances_
DataClassListNew = []
for DataIndex, DataClass in enumerate(DataClassList):
print DataClass[0], importances[DataIndex]
DataClassListNew.append([DataClass[0], importances[DataIndex]])
csv_io.write_delimited_file(
"PreProcessData/DataClassList_Importances_" + str(NumFeatures) +
".csv", DataClassListNew)
DataClassListNew_temp = sorted(DataClassListNew,
key=operator.itemgetter(1),
reverse=True)
csv_io.write_delimited_file(
"PreProcessData/DataClassList_Importances_sorted_" + str(NumFeatures) +
".csv", DataClassListNew_temp)
importancesTemp = sorted(importances, reverse=True)
print len(importancesTemp), "importances"
if (len(importancesTemp) > NumFeatures):
threshold = importancesTemp[NumFeatures]
print "Importance threshold: ", threshold
rowIndex = 0
for row in train:
newRow = []
for impIndex, importance in enumerate(importances):
if (impIndex == 0):
newRow.append(target[rowIndex])
if (importance > threshold):
newRow.append(row[impIndex])
trainNew.append(newRow)
rowIndex += 1
for row in test:
newRow = []
for impIndex, importance in enumerate(importances):
if (importance > threshold):
newRow.append(row[impIndex])
testNew.append(newRow)
csv_io.write_delimited_file("PreProcessData/training_PreProcess4_" +
str(NumFeatures) + ".csv",
trainNew,
delimiter="\t")
csv_io.write_delimited_file("PreProcessData/test_PreProcess4_" +
str(NumFeatures) + ".csv",
testNew,
delimiter="\t")
def Blend():
trainBase = csv_io.read_data("PreProcessData/training_PreProcess2.csv",
False)
SEED = 448
random.seed(SEED)
random.shuffle(trainBase)
target = [x[0] for x in trainBase]
dataset_blend_train, dataset_blend_test = stack.run_stack(SEED)
clfs = [
LogisticRegression(penalty='l2',
dual=False,
tol=0.0001,
C=1.0,
fit_intercept=True,
intercept_scaling=1,
class_weight=None),
LogisticRegression(penalty='l2',
dual=False,
tol=0.0001,
C=0.5,
fit_intercept=True,
intercept_scaling=1,
class_weight=None),
LogisticRegression(penalty='l2',
dual=False,
tol=0.0001,
C=0.1,
fit_intercept=True,
intercept_scaling=1,
class_weight=None),
LogisticRegression(penalty='l1',
dual=False,
tol=0.0001,
C=1.0,
fit_intercept=True,
intercept_scaling=1,
class_weight=None),
LogisticRegression(penalty='l1',
dual=False,
tol=0.0001,
C=0.5,
fit_intercept=True,
intercept_scaling=1,
class_weight=None),
LogisticRegression(penalty='l1',
dual=False,
tol=0.0001,
C=0.1,
fit_intercept=True,
intercept_scaling=1,
class_weight=None)
]
test = csv_io.read_data("PreProcessData/test_PreProcess2.csv", False)
dataset_blend_test_j = np.zeros((len(test), len(clfs)))
for ExecutionIndex, clf in enumerate(clfs):
#clf = LogisticRegression()
clf.fit(dataset_blend_train, target)
submission = clf.predict_proba(dataset_blend_test)[:, 1]
submission = ["%f" % x for x in submission]
now = datetime.datetime.now()
csv_io.write_delimited_file_GUID(
"../Submissions/stack" + now.strftime("%Y%m%d%H%M%S") + ".csv",
"PreProcessData/test_PatientGuid.csv", submission)
# attempt to score the training set to predict score for blend...
probSum = 0.0
trainPrediction = clf.predict_proba(dataset_blend_train)[:, 1]
for i in range(0, len(trainPrediction)):
probX = trainPrediction[i]
if (probX > 0.999):
probX = 0.999
if (probX < 0.001):
probX = 0.001
probSum += int(
target[i]) * log(probX) + (1 - int(target[i])) * log(1 - probX)
print "Train Score: ", (-probSum / len(trainPrediction))
dataset_blend_test_j[:, ExecutionIndex] = submission
csv_io.write_delimited_file_GUID_numpy(
"../Submissions/stack_LG_" + now.strftime("%Y%m%d%H%M%S") + ".csv",
"PreProcessData/test_PatientGuid.csv", dataset_blend_test_j.mean(1))
var = raw_input("Enter to terminate.")