sgd_hw/p2.py

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2021-02-12 15:50:20 +09:00
from layer import *
import numpy as np
import pickle
DIMENTION = 3
VAR_RANGE = 1
N = 10
ALPHA = 0.1
SIGMA = VAR_RANGE * ALPHA
gen: np.random.Generator = np.random.default_rng()
or_weight = (gen.uniform(high = VAR_RANGE,low = -VAR_RANGE,size=(1,DIMENTION)))
or_bias = (gen.uniform(high = VAR_RANGE, low = -VAR_RANGE,size=()))
print(or_bias)
input_x = gen.uniform(low = -VAR_RANGE,high=VAR_RANGE,size=(DIMENTION,N))
y = or_weight @ input_x + or_bias
error = gen.normal(0,SIGMA,size = (1,N))
y += error
print(y)
input_var = Variable(np.array([[1],[2],[3]]))
weight = Variable(np.array([[2,-1,1]]))
bias = Variable(np.array([[1]]))
v = ((weight @ input_var) + bias)
print(make_mermaid_graph(v))
print(f"result : {v.numpy()}")
v.backprop(np.ones(()))
print(f"grad input : {input_var.grad}, w : {weight.grad}, b : {bias.grad}")