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import tensorflow as tf | |
import numpy as np | |
def MinMaxScaler(data): | |
numerator = data - np.min(data, 0) | |
denominator = np.max(data, 0) - np.min(data, 0) | |
# noise term prevents the zero division | |
return numerator / (denominator + 1e-7) | |
data_dim=50 | |
output_dim=3 | |
xy1=np.loadtxt('train-01-data.csv',delimiter=',') | |
xy2=np.loadtxt('train-02-data.csv',delimiter=',') | |
xy3=np.loadtxt('train-03-data.csv',delimiter=',') | |
xy4=np.loadtxt('test-data.csv',delimiter=',') | |
x1=xy1[:,0:50] | |
y1=xy1[:,50:53] | |
x2=xy2[:,0:50] | |
y2=xy2[:,50:53] | |
x3=xy3[:,0:50] | |
y3=xy3[:,50:53] | |
x4=xy4[:,0:50] | |
y4=xy4[:,50:53] | |
x1=MinMaxScaler(x1) | |
x2=MinMaxScaler(x2) | |
x3=MinMaxScaler(x3) | |
x4=MinMaxScaler(x4) | |
trainX1=x1 | |
trainY1=y1 | |
trainX2=x2 | |
trainY2=y2 | |
trainX3=x3 | |
trainY3=y3 | |
testX=x4 | |
testY=y4 | |
X=tf.placeholder(tf.float32,[None,data_dim]) | |
Y=tf.placeholder(tf.float32,[None,3]) | |
W1=tf.Variable(tf.random_normal([50,25])) | |
W2=tf.Variable(tf.random_normal([25,10])) | |
W3=tf.Variable(tf.random_normal([10,3])) | |
b1=tf.Variable(tf.zeros([25]), name="Bias1") | |
b2=tf.Variable(tf.zeros([10]), name="Bias2") | |
b3=tf.Variable(tf.zeros([3]), name="Bias3") | |
with tf.name_scope("layer1") as scope: | |
L1=tf.nn.sigmoid(tf.matmul(X,W1)+b1) | |
with tf.name_scope("layer2") as scope: | |
L2=tf.nn.sigmoid(tf.matmul(L1,W2)+b2) | |
with tf.name_scope("last") as scope: | |
Y_pred=tf.nn.softmax(tf.matmul(L2,W3)+b3) | |
loss=-tf.reduce_mean(Y*tf.log(Y_pred)) | |
accuracy=tf.reduce_mean(tf.cast(tf.equal(tf.arg_max(Y_pred,1),tf.arg_max(Y,1)),dtype=tf.float32)) | |
optimizer=tf.train.AdamOptimizer(0.001) | |
train=optimizer.minimize(loss) | |
sess=tf.Session() | |
sess.run(tf.global_variables_initializer()) | |
for i in range(10000): | |
_,l=sess.run([train,loss],feed_dict={X:trainX1,Y:trainY1}) | |
_,l=sess.run([train,loss],feed_dict={X:trainX2,Y:trainY2}) | |
_,l=sess.run([train,loss],feed_dict={X:trainX3,Y:trainY3}) | |
if i%200==0: | |
print(i,l) | |
testPredict=sess.run(Y_pred,feed_dict={X:testX}) | |
acc=sess.run(accuracy,feed_dict={X:testX,Y:testY}) | |
print("\n정확도: ", acc) | |
print(np.argmax(testPredict,1)) | |
print(np.argmax(testY,1)) | |
#sql 사용부분 | |
#import sqlite3 | |
#import pandas as pd | |
#from pandas import Series,DataFrame | |
#con=sqlite3.connect("c:/Users/skehrha/tensor.db") | |
#cursor=con.cursor() | |
#W_1=DataFrame(sess.run(W1)) | |
#W_2=DataFrame(sess.run(W2)) | |
#W_3=DataFrame(sess.run(W3)) | |
#b_1=DataFrame(sess.run(b1)) | |
#b_2=DataFrame(sess.run(b2)) | |
#b_3=DataFrame(sess.run(b3)) | |
#testPredict_=DataFrame(np.argmax(testPredict,1)) | |
#W_1.to_sql('W11',con) | |
#W_2.to_sql('W22',con) | |
#W_3.to_sql('W33',con) | |
#b_1.to_sql('b11',con) | |
#b_2.to_sql('b22',con) | |
#b_3.to_sql('b33',con) | |
#testPredict_.to_sql('예측값',con) |
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