def reportLargeWeights(filename):
errorL = loadNet(filename)
input = getInputLayer(errorL)
output = errorL.below
llast = output.below
units = allUnitsLayers(errorL)
first = units[0]
print(first)
wt = np.transpose(first.weights.get_value())
bias = first.bias.get_value()
print("wt shape", wt.shape)
max = np.max(wt)
min = np.min(wt)
print("max", max, "min", min)
fmax = 0.4
fmin = 0.4
extreme = (wt > fmax * max) + (wt < fmin * min)
nc = data_nextchar.numChars()
for u in range(0, wt.shape[0]):
print("\nunit", u, "bias", bias[u])
for i in np.argwhere(extreme[u, ::]):
c = i[0]
nchar = c // nc
ch = c % nc
print(nchar, data_nextchar.charAt(ch), wt[u, i][0])
def learn_logic(filename, saveWeights=False):
data_nextchar.init()
context_size = 3
if filename == None:
rng = np.random.RandomState(123)
input = inputLayer(data_nextchar.input_width(context_size))
nori1 = layer(input, 400, rng)
# nori1o = nexp(nori1)
# nori1o = relu(nori1)
nori1o = sigmoid(nori1)
# nori2 = layer(nori1o, 400, rng)
# #nori2o = nexp(nori2)
# # nori2o = relu(nori2)
# nori2o = sigmoid(nori2)
# nori3 = layer(nori2o, 400, rng)
# #nori3o = nexp(nori3)
# nori3o = sigmoid(nori3)
# fullInput = appendNegated(input)
# and1 = andLayer(fullInput, rng)
# red1 = layer(and1, 120, rng)
# red1o = sigmoid(red1)
# red1on = appendNegated(red1o)
# and2 = andLayer(red1on, rng)
# red2 = layer(and2, 80, rng)
# red2o = sigmoid(red2)
# andLast = andLayer(red1o, rng)
llast = layer(nori1o, data_nextchar.numChars(), rng)
output = softmax(llast)
target_ = T.ivector("target")
errorL = negative_log_likelihood(output, target_)
else:
errorL = loadNet(filename)
input = getInputLayer(errorL)
output = errorL.below
llast = output.below
target = errorL.target
error = errorL.output()
nll = negative_log_likelihood(output, target).output()
lr = T.scalar("lr")
# setDropoutToAllUnits(llast.below, 0.5, None)
dumpNetworkStructure(errorL)
trainFunc = updateFunction(input.output(), target, error, errorL.all_layers_with_params(), lr)
# setDropoutToAllUnits(llast.below, None, 0.5)
testFunc = testFunction(input.output(), target, nll, output, allLayerActivationFunctions(errorL))
minibatchSize = 100
testingMinibatchSize = 10000
(testInputs, testOutputs, itxts, otxts) = data_nextchar.prepareMinibatch(testingMinibatchSize, context_size, False)
trainingErrors = []
t = 0
while True:
(inputs, outputs, tritxts, trotxts) = data_nextchar.prepareMinibatch(minibatchSize, context_size, True)
err = trainFunc(inputs.astype(np.float32), outputs.astype(np.int32), 0.01)
trainingErrors.append(err)
# print(t, ' training:', r3(err))
if t < 10 or (t < 100 and t % 10 == 0) or t % 50 == 0:
trainingErr = np.mean(trainingErrors)
trainingErrors = []
tres = testFunc(testInputs.astype(np.float32), testOutputs.astype(np.int32))
err = tres[0]
relus = tres[2:]
### print('num >0 ', ', '.join([f3((r>0).sum()/r.size) for r in relus]))
### print('num >0.3', ', '.join([f3((r>.3).sum()/r.size) for r in relus]))
### print('num >1 ', ', '.join([f3((r>1).sum()/r.size) for r in relus]))
# lo = tres[2]
# print(lo[0,::])
# print(lo[1,::])
# print(lo[2,::])
sm = tres[1]
smo = np.argsort(sm, axis=1)[:, ::-1]
# print(smo[1:3])
hits = list([0 for _ in range(0, smo.shape[1])])
for v in range(0, smo.shape[0]):
for o in range(0, smo.shape[1]):
if smo[v, o] == testOutputs[v]:
hits[o] += 1
continue
print(t, "testing:", r3(err), "training:", r3(trainingErr), hits)
sys.stdout.flush()
# for m in range(50):
# print(titxt[m], totxt[m],
# [charidToChar(smo[m,p]) + " {:9.7f}".format(sm[m, smo[m,p]])
# for p in range(5)])
# if saveWeights and (t<1000 and t%100 == 0) or t%1000 == 0:
# filename = 'netm.json'
# with open(filename, 'w') as f:
# f.write(json.dumps(errorL.dump()))
# print('wrote', filename)
t += 1
