not sure about the changes (oops)

data/gan.py

@@ -43,6 +43,10 @@ os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
 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 
@@ -52,7 +56,7 @@ class GNet :
     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']
        
@@ -95,6 +99,15 @@ class GNet :
             
         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):
         """
@@ -114,7 +127,9 @@ class GNet :
                 
             
     def log_meta(self,**args) :
+        
         _object = {
+            '_id':'meta',
             'CONTEXT':self.CONTEXT,
             'ATTRIBUTES':self.ATTRIBUTES,
             'BATCHSIZE_PER_GPU':self.BATCHSIZE_PER_GPU,
@@ -314,6 +329,11 @@ class Train (GNet):
         # print ([" *** ",self.BATCHSIZE_PER_GPU])
         
         self.meta = self.log_meta()
+        if(self.logger):
+            
+            self.logger.write( row=self.meta )
+        
+        self.log (real_shape=list(self._REAL.shape),label_shape = list(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
@@ -350,11 +370,14 @@ class Train (GNet):
         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')
 
@@ -369,7 +392,8 @@ class Train (GNet):
         dataset = dataset.repeat(10000)
         dataset = dataset.batch(batch_size=self.BATCHSIZE_PER_GPU)
         dataset = dataset.prefetch(1)
-        iterator = dataset.make_initializable_iterator()
+        # iterator = dataset.make_initializable_iterator()
+        iterator = tf.compat.v1.data.make_initializable_iterator(dataset)
         # next_element = iterator.get_next()
         # init_op = iterator.initializer
         return iterator, features_placeholder, labels_placeholder
@@ -406,6 +430,9 @@ class Train (GNet):
         # 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)
@@ -441,7 +468,7 @@ class Train (GNet):
                     print(format_str % (epoch, -w_sum/(self.STEPS_PER_EPOCH*2), duration))
                     # print (dir (w_distance))
 
-                    logs.append({"epoch":epoch,"distance":-w_sum })
+                    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']
@@ -453,8 +480,13 @@ class Train (GNet):
                         #
                         if self.logger :
                             row = {"logs":logs} #,"model":pickle.dump(sess)}                            
-                            
                             self.logger.write(row=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):
     """
@@ -482,35 +514,58 @@ class Predict(GNet):
         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 = 1000
+        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)
             labels = np.zeros((self.ROW_COUNT,self.NUM_LABELS) )
             
+            found = []
             labels= demo
+            for i in np.arange(CANDIDATE_COUNT) :
+                
                 f = sess.run(fake,feed_dict={y:labels})
                 #
                 # 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
+                
+                if  p:
+                    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 
             #
+            df = found[np.random.choice(np.arange(len(found)),1)[0]]
             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,len(columns)))
-            for col in df :
+            r = np.zeros(self.ROW_COUNT)
-                i = np.where(df[col])[0]
+            df.columns = self.values
-                r[i] = col
+            if len(found):
+                print (len(found),NTH_VALID_CANDIDATE)    
+                # x = df * self.values 
                 
-            df = pd.DataFrame(r,columns=columns)
+                df =  pd.DataFrame( df.apply(lambda row: self.values[np.random.choice(np.where(row != 0)[0],1)[0]] ,axis=1))
+                df.columns = columns
                 
-            df[df.columns] = (df.apply(lambda value: self.values[ int(value)],axis=1))
+               
-            return df.to_dict(orient='lists')
+            
+        
+        tf.compat.v1.reset_default_graph()
+        
+        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'])

data/maker/__init__.py

@@ -12,6 +12,7 @@ import pandas as pd
 import numpy as np
 import data.gan as gan
 from transport import factory
+import threading as thread
 def train (**args) :
     """
     This function is intended to train the GAN in order to learn about the distribution of the features
@@ -21,19 +22,22 @@ def train (**args) :
     :data       data-frame to be synthesized
     :context    label of what we are synthesizing
     """
-    column      = args['column']
+    column      = args['column'] if (isinstance(args['column'],list)) else [args['column']]
     
     column_id   = args['id']
     df          = args['data'] if not isinstance(args['data'],str) else pd.read_csv(args['data'])
-    # logs        = args['logs']
+    df.columns = [name.lower() for name in df.columns]
-    # real        = pd.get_dummies(df[column]).astype(np.float32).values
-    # labels      = pd.get_dummies(df[column_id]).astype(np.float32).values
-    args['real']        = pd.get_dummies(df[column]).astype(np.float32).values
-    args['label']      = pd.get_dummies(df[column_id]).astype(np.float32).values
-    # num_gpu     = 1 if 'num_gpu' not in args else args['num_gpu']
-    # max_epochs  = 10 if 'max_epochs' not in args else args['max_epochs']
-    context     = args['context']
 
+    #
+    # If we have several columns we will proceed one at a time (it could be done in separate threads)
+    # @TODO : Consider performing this task on several threads/GPUs simulataneously
+    # 
+    args['label']      = pd.get_dummies(df[column_id]).astype(np.float32).values
+    for col in column :    
+        args['real']        = pd.get_dummies(df[col]).astype(np.float32).values 
+        args['column']  = col
+        args['context'] = col
+        context     = args['context']
         if 'store' in args :
             args['store']['args']['doc'] = context
             logger = factory.instance(**args['store'])
@@ -42,9 +46,18 @@ def train (**args) :
         else:
             logger = None
         trainer = gan.Train(**args)        
-    # trainer     = gan.Train(context=context,max_epochs=max_epochs,num_gpu=num_gpu,real=real,label=labels,column=column,column_id=column_id,logger = logger,logs=logs)
+        trainer.apply()
-    return trainer.apply()
+def post(**args):
+    """
+    This uploads the tensorflow checkpoint to a data-store (mongodb, biguqery, s3)
     
+    """
+    pass
+def get(**):
+    """
+    This function will restore a checkpoint from a persistant storage on to disk
+    """
+    pass
 def generate(**args):
     """
     This function will generate a synthetic dataset on the basis of a model that has been learnt for the dataset
@@ -57,29 +70,27 @@ def generate(**args):
     """
     # df      = args['data']
     df      = args['data'] if not isinstance(args['data'],str) else pd.read_csv(args['data'])
-    column      = args['column'] 
-    column_id   = args['id']
-    # logs        = args['logs']
-    # context = args['context']
-    # num_gpu     = 1 if 'num_gpu' not in args else args['num_gpu']
-    # max_epochs  = 10 if 'max_epochs' not in args else args['max_epochs']
     
+    column      = args['column'] if (isinstance(args['column'],list)) else [args['column']]
+    column_id   = args['id']
     #
     #@TODO:
     #   If the identifier is not present, we should fine a way to determine or make one
     #
-    #ocolumns= list(set(df.columns.tolist())- set(columns))
-    
-    values = df[column].unique().tolist()
-    values.sort()
-
-    # labels = pd.get_dummies(df[column_id]).astype(np.float32).values
     args['label']  = pd.get_dummies(df[column_id]).astype(np.float32).values
-    args['values']  = values
-    # handler = gan.Predict (context=context,label=labels,max_epochs=max_epochs,num_gpu=num_gpu,values=values,column=column,logs=logs)
-    handler = gan.Predict (**args)
-    handler.load_meta(column)
-    r =  handler.apply()
     _df     = df.copy()
-    _df[column] = r[column]
+    for col in column :
+        args['context'] = col
+        args['column']  = col
+        values          = df[col].unique().tolist()
+        # values.sort()        
+        args['values']  = values
+        #
+        # we can determine the cardinalities here so we know what to allow or disallow
+        handler         = gan.Predict (**args)
+        handler.load_meta(col)
+        r       =  handler.apply()        
+        # print (r)        
+        _df[col] = r[col]
+        # break
     return _df

data/maker/__main__.py

@@ -15,13 +15,15 @@ if 'config' in SYS_ARGS :
         _df = data.maker.generate(**ARGS)
         odf = pd.read_csv (ARGS['data'])
         odf.columns = [name.lower() for name in odf.columns]
-        column = [ARGS['column'] ] #+ ARGS['id']
+        column = ARGS['column']  if isinstance(ARGS['column'],list) else [ARGS['column']]
-        print (column)
+        print(pd.merge(odf,_df, on='id'))
-        print (_df[column].risk.evaluate())
+        # print (_df[column].risk.evaluate(flag='synth'))
-        print (odf[column].risk.evaluate())
+        # print (odf[column].risk.evaluate(flag='original'))
-        _x = pd.get_dummies(_df[column]).values
+        # _x = pd.get_dummies(_df[column]).values
-        y  = pd.get_dummies(odf[column]).values
+        # y  = pd.get_dummies(odf[column]).values
-        N = _df.shape[0]
+        # N = _df.shape[0]
-        print (np.mean([ wd(_x[i],y[i])for i in range(0,N)]))
+        # print (np.mean([ wd(_x[i],y[i])for i in range(0,N)]))
+        # print (wd(_x[0],y[0]) )
+        
         # column = SYS_ARGS['column']
         # odf = open(SYS_ARGS['data'])