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data-maker
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Steve L. Nyemba 6 years ago
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"""
This code was originally writen by Ziqi Zhang <ziqi.zhang@vanderbilt.edu> in order to generate synthetic data.
The code is an implementation of a Generative Adversarial Network that uses the Wasserstein Distance (WGAN).
It is intended to be used in 2 modes (embedded in code or using CLI)
USAGE :
The following parameters should be provided in a configuration file (JSON format)
python data/maker --config <path-to-config-file.json>
CONFIGURATION FILE STRUCTURE :
context what it is you are loading (stroke, hypertension, ...)
data path of the file to be loaded
logs folder to store training model and meta data about learning
max_epochs number of iterations in learning
num_gpu number of gpus to be used (will still run if the GPUs are not available)
EMBEDDED IN CODE :
"""
import tensorflow as tf
from tensorflow.contrib.layers import l2_regularizer
import numpy as np
import pandas as pd
import time
import os
import sys
from data.params import SYS_ARGS
from data.bridge import Binary
import json
import pickle
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
os.environ['CUDA_VISIBLE_DEVICES'] = "0"
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
# STEPS_PER_EPOCH = int(SYS_ARGS['epoch']) if 'epoch' in SYS_ARGS else 256
# NUM_GPUS = 1 if 'num_gpu' not in SYS_ARGS else int(SYS_ARGS['num_gpu'])
# BATCHSIZE_PER_GPU = 2000
# TOTAL_BATCHSIZE = BATCHSIZE_PER_GPU * NUM_GPUS
class void :
pass
class GNet :
def log(self,**args):
self.logs = dict(args,**self.logs)
"""
This is the base class of a generative network functions, the details will be implemented in the subclasses.
An instance of this class is accessed as follows
object.layers.normalize applies batch normalization or otherwise
obect.get.variables instanciate variables on cpu and return a reference (tensor)
"""
def __init__(self,**args):
self.layers = void()
self.layers.normalize = self.normalize
self.logs = {}
self.NUM_GPUS = 1 if 'num_gpu' not in args else args['num_gpu']
# if self.NUM_GPUS > 1 :
# os.environ['CUDA_VISIBLE_DEVICES'] = "4"
self.X_SPACE_SIZE = args['real'].shape[1] if 'real' in args else 854
self.G_STRUCTURE = [128,128] #[self.X_SPACE_SIZE, self.X_SPACE_SIZE]
self.D_STRUCTURE = [self.X_SPACE_SIZE,256,128] #[self.X_SPACE_SIZE, self.X_SPACE_SIZE*2, self.X_SPACE_SIZE] #-- change 854 to number of diagnosis
# self.NUM_LABELS = 8 if 'label' not in args elif len(args['label'].shape) args['label'].shape[1]
if 'label' in args and len(args['label'].shape) == 2 :
self.NUM_LABELS = args['label'].shape[1]
elif 'label' in args and len(args['label']) == 1 :
self.NUM_LABELS = args['label'].shape[0]
else:
self.NUM_LABELS = None
# self.Z_DIM = 128 #self.X_SPACE_SIZE
self.Z_DIM = 128 #-- used as rows down stream
self.G_STRUCTURE = [self.Z_DIM,self.Z_DIM]
PROPOSED_BATCH_PER_GPU = 2000 if 'batch_size' not in args else int(args['batch_size'])
self.BATCHSIZE_PER_GPU = PROPOSED_BATCH_PER_GPU
if 'real' in args :
self.D_STRUCTURE = [args['real'].shape[1],256,self.Z_DIM]
if args['real'].shape[0] < PROPOSED_BATCH_PER_GPU :
self.BATCHSIZE_PER_GPU = int(args['real'].shape[0]* 1)
# self.BATCHSIZE_PER_GPU = 2000 if 'batch_size' not in args else int(args['batch_size'])
self.TOTAL_BATCHSIZE = self.BATCHSIZE_PER_GPU * self.NUM_GPUS
self.STEPS_PER_EPOCH = 256 #int(np.load('ICD9/train.npy').shape[0] / 2000)
self.MAX_EPOCHS = 10 if 'max_epochs' not in args else int(args['max_epochs'])
self.ROW_COUNT = args['real'].shape[0] if 'real' in args else 100
self.CONTEXT = args['context']
self.ATTRIBUTES = {"id":args['column_id'] if 'column_id' in args else None,"synthetic":args['column'] if 'column' in args else None}
self._REAL = args['real'] if 'real' in args else None
self._LABEL = args['label'] if 'label' in args else None
self.get = void()
self.get.variables = self._variable_on_cpu
self.get.suffix = lambda : "-".join(self.ATTRIBUTES['synthetic']) if isinstance(self.ATTRIBUTES['synthetic'],list) else self.ATTRIBUTES['synthetic']
self.logger = args['logger'] if 'logger' in args and args['logger'] else None
self.init_logs(**args)
def init_logs(self,**args):
self.log_dir = args['logs'] if 'logs' in args else 'logs'
self.mkdir(self.log_dir)
#
#
for key in ['train','output'] :
self.mkdir(os.sep.join([self.log_dir,key]))
self.mkdir (os.sep.join([self.log_dir,key,self.CONTEXT]))
self.train_dir = os.sep.join([self.log_dir,'train',self.CONTEXT])
self.out_dir = os.sep.join([self.log_dir,'output',self.CONTEXT])
if self.logger :
#
# We will clear the logs from the data-store
#
column = self.ATTRIBUTES['synthetic']
db = self.logger.db
if db[column].count() > 0 :
db.backup.insert({'name':column,'logs':list(db[column].find()) })
db[column].drop()
def load_meta(self,column):
"""
This function is designed to accomodate the uses of the sub-classes outside of a strict dependency model.
Because prediction and training can happen independently
"""
# suffix = "-".join(column) if isinstance(column,list)else column
suffix = self.get.suffix()
_name = os.sep.join([self.out_dir,'meta-'+suffix+'.json'])
if os.path.exists(_name) :
attr = json.loads((open(_name)).read())
for key in attr :
value = attr[key]
setattr(self,key,value)
self.train_dir = os.sep.join([self.log_dir,'train',self.CONTEXT])
self.out_dir = os.sep.join([self.log_dir,'output',self.CONTEXT])
def log_meta(self,**args) :
_object = {
# '_id':'meta',
'CONTEXT':self.CONTEXT,
'ATTRIBUTES':self.ATTRIBUTES,
'BATCHSIZE_PER_GPU':self.BATCHSIZE_PER_GPU,
'Z_DIM':self.Z_DIM,
"X_SPACE_SIZE":self.X_SPACE_SIZE,
"D_STRUCTURE":self.D_STRUCTURE,
"G_STRUCTURE":self.G_STRUCTURE,
"NUM_GPUS":self.NUM_GPUS,
"NUM_LABELS":self.NUM_LABELS,
"MAX_EPOCHS":self.MAX_EPOCHS,
"ROW_COUNT":self.ROW_COUNT
}
if args and 'key' in args and 'value' in args :
key = args['key']
value= args['value']
object[key] = value
# suffix = "-".join(self.column) if isinstance(self.column,list) else self.column
suffix = self.get.suffix()
_name = os.sep.join([self.out_dir,'meta-'+suffix])
f = open(_name+'.json','w')
f.write(json.dumps(_object))
return _object
def mkdir (self,path):
if not os.path.exists(path) :
os.mkdir(path)
def normalize(self,**args):
"""
This function will perform a batch normalization on an network layer
inputs input layer of the neural network
name name of the scope the
labels labels (attributes not synthesized) by default None
n_labels number of labels default None
"""
inputs = args['inputs']
name = args['name']
labels = None if 'labels' not in args else args['labels']
n_labels= None if 'n_labels' not in args else args['n_labels']
shift = [0] if self.__class__.__name__.lower() == 'generator' else [1] #-- not sure what this is doing
mean, var = tf.nn.moments(inputs, shift, keep_dims=True)
shape = inputs.shape[1].value
if labels is not None:
offset_m = self.get.variables(shape=[1,shape], name='offset'+name,
initializer=tf.zeros_initializer)
scale_m = self.get.variables(shape=[n_labels,shape], name='scale'+name,
initializer=tf.ones_initializer)
offset = tf.nn.embedding_lookup(offset_m, labels)
scale = tf.nn.embedding_lookup(scale_m, labels)
else:
offset = None
scale = None
result = tf.nn.batch_normalization(inputs, mean, var,offset,scale, 1e-8)
return result
def _variable_on_cpu(self,**args):
"""
This function makes sure variables/tensors are not created on the GPU but rather on the CPU
"""
name = args['name']
shape = args['shape']
initializer=None if 'initializer' not in args else args['initializer']
with tf.device('/cpu:0') :
cpu_var = tf.compat.v1.get_variable(name,shape,initializer= initializer)
return cpu_var
def average_gradients(self,tower_grads):
average_grads = []
for grad_and_vars in zip(*tower_grads):
grads = []
for g, _ in grad_and_vars:
expanded_g = tf.expand_dims(g, 0)
grads.append(expanded_g)
grad = tf.concat(axis=0, values=grads)
grad = tf.reduce_mean(grad, 0)
v = grad_and_vars[0][1]
grad_and_var = (grad, v)
average_grads.append(grad_and_var)
return average_grads
class Generator (GNet):
"""
This class is designed to handle generation of candidate datasets for this it will aggregate a discriminator, this allows the generator not to be random
"""
def __init__(self,**args):
GNet.__init__(self,**args)
self.discriminator = Discriminator(**args)
def loss(self,**args):
fake = args['fake']
label = args['label']
y_hat_fake = self.discriminator.network(inputs=fake, label=label)
#all_regs = tf.get_collection(tf.GraphKeys.REGULARIZATION_LOSSES)
all_regs = tf.compat.v1.get_collection(tf.compat.v1.GraphKeys.REGULARIZATION_LOSSES)
loss = -tf.reduce_mean(y_hat_fake) + sum(all_regs)
#tf.add_to_collection('glosses', loss)
tf.compat.v1.add_to_collection('glosses', loss)
return loss, loss
def load_meta(self, column):
super().load_meta(column)
self.discriminator.load_meta(column)
def network(self,**args) :
"""
This function will build the network that will generate the synthetic candidates
:inputs matrix of data that we need
:dim dimensions of ...
"""
x = args['inputs']
tmp_dim = self.Z_DIM if 'dim' not in args else args['dim']
label = args['label']
with tf.compat.v1.variable_scope('G', reuse=tf.compat.v1.AUTO_REUSE , regularizer=l2_regularizer(0.00001)):
for i, dim in enumerate(self.G_STRUCTURE[:-1]):
kernel = self.get.variables(name='W_' + str(i), shape=[tmp_dim, dim])
h1 = self.normalize(inputs=tf.matmul(x, kernel),shift=0, name='cbn' + str(i), labels=label, n_labels=self.NUM_LABELS)
h2 = tf.nn.relu(h1)
x = x + h2
tmp_dim = dim
i = len(self.G_STRUCTURE) - 1
#
# This seems to be an extra hidden layer:
# It's goal is to map continuous values to discrete values (pre-trained to do this)
kernel = self.get.variables(name='W_' + str(i), shape=[tmp_dim, self.G_STRUCTURE[-1]])
h1 = self.normalize(inputs=tf.matmul(x, kernel), name='cbn' + str(i),
labels=label, n_labels=self.NUM_LABELS)
h2 = tf.nn.tanh(h1)
x = x + h2
# This seems to be the output layer
#
kernel = self.get.variables(name='W_' + str(i+1), shape=[self.Z_DIM, self.X_SPACE_SIZE])
bias = self.get.variables(name='b_' + str(i+1), shape=[self.X_SPACE_SIZE])
x = tf.nn.sigmoid(tf.add(tf.matmul(x, kernel), bias))
return x
class Discriminator(GNet):
def __init__(self,**args):
GNet.__init__(self,**args)
def network(self,**args):
"""
This function will apply a computational graph on a dataset passed in with the associated labels and the last layer must have a single output (neuron)
:inputs
:label
"""
x = args['inputs']
label = args['label']
with tf.compat.v1.variable_scope('D', reuse=tf.compat.v1.AUTO_REUSE , regularizer=l2_regularizer(0.00001)):
for i, dim in enumerate(self.D_STRUCTURE[1:]):
kernel = self.get.variables(name='W_' + str(i), shape=[self.D_STRUCTURE[i], dim])
bias = self.get.variables(name='b_' + str(i), shape=[dim])
# print (["\t",bias,kernel])
x = tf.nn.relu(tf.add(tf.matmul(x, kernel), bias))
x = self.normalize(inputs=x, name='cln' + str(i), shift=1,labels=label, n_labels=self.NUM_LABELS)
i = len(self.D_STRUCTURE)
kernel = self.get.variables(name='W_' + str(i), shape=[self.D_STRUCTURE[-1], 1])
bias = self.get.variables(name='b_' + str(i), shape=[1])
y = tf.add(tf.matmul(x, kernel), bias)
return y
def loss(self,**args) :
"""
This function compute the loss of
:real
:fake
:label
"""
real = args['real']
fake = args['fake']
label = args['label']
epsilon = tf.random.uniform(shape=[self.BATCHSIZE_PER_GPU,1],minval=0,maxval=1)
x_hat = real + epsilon * (fake - real)
y_hat_fake = self.network(inputs=fake, label=label)
y_hat_real = self.network(inputs=real, label=label)
y_hat = self.network(inputs=x_hat, label=label)
grad = tf.gradients(y_hat, [x_hat])[0]
slopes = tf.sqrt(tf.reduce_sum(tf.square(grad), 1))
gradient_penalty = tf.reduce_mean((slopes - 1.) ** 2)
#all_regs = tf.get_collection(tf.GraphKeys.REGULARIZATION_LOSSES)
all_regs = tf.compat.v1.get_collection(tf.compat.v1.GraphKeys.REGULARIZATION_LOSSES)
w_distance = -tf.reduce_mean(y_hat_real) + tf.reduce_mean(y_hat_fake)
loss = w_distance + 10 * gradient_penalty + sum(all_regs)
#tf.add_to_collection('dlosses', loss)
tf.compat.v1.add_to_collection('dlosses', loss)
return w_distance, loss
class Train (GNet):
def __init__(self,**args):
GNet.__init__(self,**args)
self.generator = Generator(**args)
self.discriminator = Discriminator(**args)
self._REAL = args['real']
self._LABEL= args['label'] if 'label' in args else None
self.column = args['column']
# print ([" *** ",self.BATCHSIZE_PER_GPU])
self.meta = self.log_meta()
if(self.logger):
self.logger.write( self.meta )
# self.log (real_shape=list(self._REAL.shape),label_shape = self._LABEL.shape,meta_data=self.meta)
def load_meta(self, column):
"""
This function will delegate the calls to load meta data to it's dependents
column name
"""
super().load_meta(column)
self.generator.load_meta(column)
self.discriminator.load_meta(column)
def loss(self,**args):
"""
This function will compute a "tower" loss of the generated candidate against real data
Training will consist in having both generator and discriminators
:scope
:stage
:real
:label
"""
scope = args['scope']
stage = args['stage']
real = args['real']
label = args['label']
if label is not None :
label = tf.cast(label, tf.int32)
#
# @TODO: Ziqi needs to explain what's going on here
m = [[i] for i in np.arange(self._LABEL.shape[1]-2)]
label = label[:, 1] * len(m) + tf.squeeze(
tf.matmul(label[:, 2:], tf.constant(m, dtype=tf.int32))
)
# label = label[:,1] * 4 + tf.squeeze( label[:,2]*[[0],[1],[2],[3]] )
z = tf.random.normal(shape=[self.BATCHSIZE_PER_GPU, self.Z_DIM])
fake = self.generator.network(inputs=z, label=label)
if stage == 'D':
w, loss = self.discriminator.loss(real=real, fake=fake, label=label)
#losses = tf.get_collection('dlosses', scope)
flag = 'dlosses'
losses = tf.compat.v1.get_collection('dlosses', scope)
else:
w, loss = self.generator.loss(fake=fake, label=label)
#losses = tf.get_collection('glosses', scope)
flag = 'glosses'
losses = tf.compat.v1.get_collection('glosses', scope)
# losses = tf.compat.v1.get_collection(flag, scope)
total_loss = tf.add_n(losses, name='total_loss')
return total_loss, w
def input_fn(self):
"""
This function seems to produce
"""
features_placeholder = tf.compat.v1.placeholder(shape=self._REAL.shape, dtype=tf.float32)
LABEL_SHAPE = [None,None] if self._LABEL is None else self._LABEL.shape
labels_placeholder = tf.compat.v1.placeholder(shape=LABEL_SHAPE, dtype=tf.float32)
if self._LABEL is not None :
dataset = tf.data.Dataset.from_tensor_slices((features_placeholder, labels_placeholder))
else :
dataset = tf.data.Dataset.from_tensor_slices(features_placeholder)
# labels_placeholder = None
dataset = dataset.repeat(10000)
dataset = dataset.batch(batch_size=self.BATCHSIZE_PER_GPU)
dataset = dataset.prefetch(1)
# iterator = dataset.make_initializable_iterator()
iterator = tf.compat.v1.data.make_initializable_iterator(dataset)
return iterator, features_placeholder, labels_placeholder
def network(self,**args):
stage = args['stage']
opt = args['opt']
tower_grads = []
per_gpu_w = []
iterator, features_placeholder, labels_placeholder = self.input_fn()
with tf.compat.v1.variable_scope(tf.compat.v1.get_variable_scope()):
for i in range(self.NUM_GPUS):
with tf.device('/gpu:%d' % i):
with tf.name_scope('%s_%d' % ('TOWER', i)) as scope:
if self._LABEL is not None :
(real, label) = iterator.get_next()
else:
real = iterator.get_next()
label= None
loss, w = self.loss(scope=scope, stage=stage, real=real, label=label)
#tf.get_variable_scope().reuse_variables()
tf.compat.v1.get_variable_scope().reuse_variables()
#vars_ = tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES, scope=stage)
vars_ = tf.compat.v1.get_collection(tf.compat.v1.GraphKeys.TRAINABLE_VARIABLES, scope=stage)
grads = opt.compute_gradients(loss, vars_)
tower_grads.append(grads)
per_gpu_w.append(w)
grads = self.average_gradients(tower_grads)
apply_gradient_op = opt.apply_gradients(grads)
mean_w = tf.reduce_mean(per_gpu_w)
train_op = apply_gradient_op
return train_op, mean_w, iterator, features_placeholder, labels_placeholder
def apply(self,**args):
# max_epochs = args['max_epochs'] if 'max_epochs' in args else 10
REAL = self._REAL
LABEL= self._LABEL
if (self.logger):
pass
with tf.device('/cpu:0'):
opt_d = tf.compat.v1.train.AdamOptimizer(1e-4)
opt_g = tf.compat.v1.train.AdamOptimizer(1e-4)
train_d, w_distance, iterator_d, features_placeholder_d, labels_placeholder_d = self.network(stage='D', opt=opt_d)
train_g, _, iterator_g, features_placeholder_g, labels_placeholder_g = self.network(stage='G', opt=opt_g)
# saver = tf.train.Saver()
saver = tf.compat.v1.train.Saver()
# init = tf.global_variables_initializer()
init = tf.compat.v1.global_variables_initializer()
logs = []
#with tf.Session(config=tf.ConfigProto(allow_soft_placement=True, log_device_placement=False)) as sess:
with tf.compat.v1.Session(config=tf.compat.v1.ConfigProto(allow_soft_placement=True, log_device_placement=False)) as sess:
sess.run(init)
sess.run(iterator_d.initializer,
feed_dict={features_placeholder_d: REAL})
sess.run(iterator_g.initializer,
feed_dict={features_placeholder_g: REAL})
for epoch in range(1, self.MAX_EPOCHS + 1):
start_time = time.time()
w_sum = 0
for i in range(self.STEPS_PER_EPOCH):
for _ in range(2):
_, w = sess.run([train_d, w_distance])
w_sum += w
sess.run(train_g)
duration = time.time() - start_time
assert not np.isnan(w_sum), 'Model diverged with loss = NaN'
format_str = 'epoch: %d, w_distance = %f (%.1f)'
print(format_str % (epoch, -w_sum/(self.STEPS_PER_EPOCH*2), duration))
# print (dir (w_distance))
logs.append({"epoch":epoch,"distance":-w_sum/(self.STEPS_PER_EPOCH*2) })
if epoch % self.MAX_EPOCHS == 0:
# suffix = "-".join(self.ATTRIBUTES['synthetic']) if isinstance(self.ATTRIBUTES['synthetic'],list) else self.ATTRIBUTES['synthetic']
suffix = self.get.suffix()
_name = os.sep.join([self.train_dir,suffix])
# saver.save(sess, self.train_dir, write_meta_graph=False, global_step=epoch)
saver.save(sess, _name, write_meta_graph=False, global_step=epoch)
#
#
if self.logger :
row = {"logs":logs} #,"model":pickle.dump(sess)}
self.logger.write(row)
#
# @TODO:
# We should upload the files in the checkpoint
# This would allow the learnt model to be portable to another system
#
tf.compat.v1.reset_default_graph()
class Predict(GNet):
"""
This class uses synthetic data given a learned model
"""
def __init__(self,**args):
GNet.__init__(self,**args)
self.generator = Generator(**args)
self.values = args['values']
def load_meta(self, column):
super().load_meta(column)
self.generator.load_meta(column)
def apply(self,**args):
# print (self.train_dir)
# suffix = "-".join(self.ATTRIBUTES['synthetic']) if isinstance(self.ATTRIBUTES['synthetic'],list) else self.ATTRIBUTES['synthetic']
suffix = self.get.suffix()
model_dir = os.sep.join([self.train_dir,suffix+'-'+str(self.MAX_EPOCHS)])
demo = self._LABEL #np.zeros([self.ROW_COUNT,self.NUM_LABELS]) #args['de"shape":{"LABEL":list(self._LABEL.shape)} mo']
tf.compat.v1.reset_default_graph()
#z = tf.random.normal(shape=[self.BATCHSIZE_PER_GPU, self.Z_DIM])
z = tf.random.normal(shape=[self._REAL.shape[0], self.Z_DIM])
y = tf.compat.v1.placeholder(shape=[self._REAL.shape[0], self.NUM_LABELS], dtype=tf.int32)
#y = tf.compat.v1.placeholder(shape=[self.BATCHSIZE_PER_GPU, self.NUM_LABELS], dtype=tf.int32)
if self._LABEL is not None :
ma = [[i] for i in np.arange(self.NUM_LABELS - 2)]
label = y[:, 1] * len(ma) + tf.squeeze(tf.matmul(y[:, 2:], tf.constant(ma, dtype=tf.int32)))
else:
label = None
fake = self.generator.network(inputs=z, label=label)
init = tf.compat.v1.global_variables_initializer()
saver = tf.compat.v1.train.Saver()
df = pd.DataFrame()
CANDIDATE_COUNT = 10000
NTH_VALID_CANDIDATE = count = np.random.choice(np.arange(2,60),2)[0]
with tf.compat.v1.Session() as sess:
# sess.run(init)
saver.restore(sess, model_dir)
if self._LABEL is not None :
labels = np.zeros((self.ROW_COUNT,self.NUM_LABELS) )
labels= demo
else:
labels = None
found = []
for i in np.arange(CANDIDATE_COUNT) :
if labels :
f = sess.run(fake,feed_dict={y:labels})
else:
f = sess.run(fake)
#
# if we are dealing with numeric values only we can perform a simple marginal sum against the indexes
# The code below will insure we have some acceptable cardinal relationships between id and synthetic values
#
df = ( pd.DataFrame(np.round(f).astype(np.int32)))
p = 0 not in df.sum(axis=1).values
x = df.sum(axis=1).values
if np.divide( np.sum(x), x.size) > .9:
found.append(df)
if len(found) == NTH_VALID_CANDIDATE or i == CANDIDATE_COUNT:
break
else:
continue
# i = df.T.index.astype(np.int32) #-- These are numeric pseudonyms
# df = (i * df).sum(axis=1)
#
# In case we are dealing with actual values like diagnosis codes we can perform
#
INDEX =np.random.choice(np.arange(len(found)),1)[0]
#df = found[np.random.choice(np.arange(len(found)),1)[0]]
df = found[INDEX]
columns = self.ATTRIBUTES['synthetic'] if isinstance(self.ATTRIBUTES['synthetic'],list)else [self.ATTRIBUTES['synthetic']]
# r = np.zeros((self.ROW_COUNT,len(columns)))
r = np.zeros(self.ROW_COUNT)
df.columns = self.values
if len(found):
print (len(found),NTH_VALID_CANDIDATE)
# x = df * self.values
#
# let's get the rows with no values synthesized (for whatever reason)
#
ii = df.apply(lambda row: np.sum(row) == 0,axis=1)
if np.sum(ii) > 0 :
missing = np.repeat(np.nan, np.where(ii==1)[0].size)
else:
missing = []
print (len (missing), df.shape)
i = np.where(ii == 0)[0]
df = pd.DataFrame( df.iloc[i].apply(lambda row: self.values[np.random.choice(np.where(row == 1)[0],1)[0]] ,axis=1))
df.columns = columns
df = df[columns[0]].append(pd.Series(missing))
tf.compat.v1.reset_default_graph()
df = pd.DataFrame(df)
df.columns = columns
print (df.head())
print (df.shape)
return df.to_dict(orient='list')
# return df.to_dict(orient='list')
# count = str(len(os.listdir(self.out_dir)))
# _name = os.sep.join([self.out_dir,self.CONTEXT+'-'+count+'.csv'])
# df.to_csv(_name,index=False)
# output.extend(np.round(f))
# for m in range(2):
# for n in range(2, self.NUM_LABELS):
# idx1 = (demo[:, m] == 1)
# idx2 = (demo[:, n] == 1)
# idx = [idx1[j] and idx2[j] for j in range(len(idx1))]
# num = np.sum(idx)
# print ("___________________list__")
# print (idx1)
# print (idx2)
# print (idx)
# print (num)
# print ("_____________________")
# nbatch = int(np.ceil(num / self.BATCHSIZE_PER_GPU))
# label_input = np.zeros((nbatch*self.BATCHSIZE_PER_GPU, self.NUM_LABELS))
# label_input[:, n] = 1
# label_input[:, m] = 1
# output = []
# for i in range(nbatch):
# f = sess.run(fake,feed_dict={y: label_input[i* self.BATCHSIZE_PER_GPU:(i+1)* self.BATCHSIZE_PER_GPU]})
# output.extend(np.round(f))
# output = np.array(output)[:num]
# print ([m,n,output])
# np.save(self.out_dir + str(m) + str(n), output)
if __name__ == '__main__' :
#
# Now we get things done ...
column = SYS_ARGS['column']
column_id = SYS_ARGS['id'] if 'id' in SYS_ARGS else 'person_id'
column_id = column_id.split(',') if ',' in column_id else column_id
df = pd.read_csv(SYS_ARGS['raw-data'])
LABEL = pd.get_dummies(df[column_id]).astype(np.float32).values
context = SYS_ARGS['raw-data'].split(os.sep)[-1:][0][:-4]
if set(['train','learn']) & set(SYS_ARGS.keys()):
df = pd.read_csv(SYS_ARGS['raw-data'])
# cols = SYS_ARGS['column']
# _map,_df = (Binary()).Export(df)
# i = np.arange(_map[column]['start'],_map[column]['end'])
max_epochs = np.int32(SYS_ARGS['max_epochs']) if 'max_epochs' in SYS_ARGS else 10
# REAL = _df[:,i]
REAL = pd.get_dummies(df[column]).astype(np.float32).values
LABEL = pd.get_dummies(df[column_id]).astype(np.float32).values
trainer = Train(context=context,max_epochs=max_epochs,real=REAL,label=LABEL,column=column,column_id=column_id)
trainer.apply()
#
# We should train upon this data
#
# -- we need to convert the data-frame to binary matrix, given a column
#
pass
elif 'generate' in SYS_ARGS:
values = df[column].unique().tolist()
values.sort()
p = Predict(context=context,label=LABEL,values=values,column=column)
p.load_meta(column)
r = p.apply()
print (df)
print ()
df[column] = r[column]
print (df)
else:
print (SYS_ARGS.keys())
print (__doc__)
pass
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