COMP4332-hw2-q3.py

q3.py

w1 = 0.3
w2 = 0.3
b = 0.3
x1 = 2
x2 = 0
a = 0.6
ex = 0

net = w1 * x1 + w2 * x2 + b
y = 1/(1+(2.7183**(-net)))

w1 = w1 + a *(ex - y)*x1
w2 = w2 + a *(ex - y)*x2
b = b + a * (ex - y)

print ("w1: ", w1, " w2: ", w2, " b: ", b, " y: ",y)

x1 = 0
x2 = 2
ex = 0

net = w1 * x1 + w2 * x2 + b
y = 1/(1+(2.7183**(-net)))

w1 = w1 + a *(ex - y)*x1
w2 = w2 + a *(ex - y)*x2
b = b + a * (ex - y)

print ("w1: ", w1, " w2: ", w2, " b: ", b, " y: ",y)

x1 = 4
x2 = 2
ex = 1

net = w1 * x1 + w2 * x2 + b
y = 1/(1+(2.7183**(-net)))

w1 = w1 + a *(ex - y)*x1
w2 = w2 + a *(ex - y)*x2
b = b + a * (ex - y)

print ("w1: ", w1, " w2: ", w2, " b: ", b, " y: ",y)

x1 = 2
x2 = 4
ex = 1

net = w1 * x1 + w2 * x2 + b
y = 1/(1+(2.7183**(-net)))

w1 = w1 + a *(ex - y)*x1
w2 = w2 + a *(ex - y)*x2
b = b + a * (ex - y)

print ("w1: ", w1, " w2: ", w2, " b: ", b, " y: ",y)


x1 = 2
x2 = 0
ex = 0

net = w1 * x1 + w2 * x2 + b
y = 1/(1+(2.7183**(-net)))

w1 = w1 + a *(ex - y)*x1
w2 = w2 + a *(ex - y)*x2
b = b + a * (ex - y)

print ("w1: ", w1, " w2: ", w2, " b: ", b, " y: ",y)