2-hihello.ipynb

Kernel: Python 3

import torch
import torch.optim as optim
import numpy as np

# Random seed to make results deterministic and reproducible
torch.manual_seed(0)

<torch._C.Generator at 0x111e5fb50>

# declare dictionary
char_set = ['h', 'i', 'e', 'l', 'o']

# hyper parameters
input_size = len(char_set)
hidden_size = len(char_set)
learning_rate = 0.1

# data setting
x_data = [[0, 1, 0, 2, 3, 3]]
x_one_hot = [[[1, 0, 0, 0, 0],
              [0, 1, 0, 0, 0],
              [1, 0, 0, 0, 0],
              [0, 0, 1, 0, 0],
              [0, 0, 0, 1, 0],
              [0, 0, 0, 1, 0]]]
y_data = [[1, 0, 2, 3, 3, 4]]

# transform as torch tensor variable
X = torch.FloatTensor(x_one_hot)
Y = torch.LongTensor(y_data)

# declare RNN
rnn = torch.nn.RNN(input_size, hidden_size, batch_first=True)  # batch_first guarantees the order of output = (B, S, F)

# loss & optimizer setting
criterion = torch.nn.CrossEntropyLoss()
optimizer = optim.Adam(rnn.parameters(), learning_rate)

# start training
for i in range(100):
    optimizer.zero_grad()
    outputs, _status = rnn(X)
    loss = criterion(outputs.view(-1, input_size), Y.view(-1))
    loss.backward()
    optimizer.step()

    result = outputs.data.numpy().argmax(axis=2)
    result_str = ''.join([char_set[c] for c in np.squeeze(result)])
    print(i, "loss: ", loss.item(), "prediction: ", result, "true Y: ", y_data, "prediction str: ", result_str)

0 loss:  1.7802648544311523 prediction:  [[1 1 1 1 1 1]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  iiiiii
1 loss:  1.4931954145431519 prediction:  [[1 4 1 1 4 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ioiioo
2 loss:  1.3337129354476929 prediction:  [[1 3 2 3 1 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilelio
3 loss:  1.215295433998108 prediction:  [[2 3 2 3 3 3]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  elelll
4 loss:  1.1131411790847778 prediction:  [[2 3 2 3 3 3]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  elelll
5 loss:  1.0241888761520386 prediction:  [[2 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  elello
6 loss:  0.9573155045509338 prediction:  [[2 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  elello
7 loss:  0.9102011322975159 prediction:  [[2 0 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ehello
8 loss:  0.8731772899627686 prediction:  [[1 0 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ihello
9 loss:  0.8399624824523926 prediction:  [[1 0 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ihello
10 loss:  0.8088951706886292 prediction:  [[1 0 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ihello
11 loss:  0.7812867760658264 prediction:  [[1 0 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ihello
12 loss:  0.7585349082946777 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
13 loss:  0.7401294112205505 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
14 loss:  0.7243587970733643 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
15 loss:  0.709122359752655 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
16 loss:  0.6929269433021545 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
17 loss:  0.6821210980415344 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
18 loss:  0.6735268235206604 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
19 loss:  0.6595444679260254 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
20 loss:  0.6534828543663025 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
21 loss:  0.6465457081794739 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
22 loss:  0.6398184895515442 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
23 loss:  0.6381523013114929 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
24 loss:  0.6326718926429749 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
25 loss:  0.6256727576255798 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
26 loss:  0.6215079426765442 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
27 loss:  0.616705060005188 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
28 loss:  0.6099358201026917 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
29 loss:  0.6030194163322449 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
30 loss:  0.5992398262023926 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
31 loss:  0.5964334607124329 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
32 loss:  0.5916643738746643 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
33 loss:  0.5881562232971191 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
34 loss:  0.5854337811470032 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
35 loss:  0.5813184976577759 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
36 loss:  0.5761863589286804 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
37 loss:  0.5734922289848328 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
38 loss:  0.5727553963661194 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
39 loss:  0.5682081580162048 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
40 loss:  0.5656263828277588 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
41 loss:  0.5647333264350891 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
42 loss:  0.5629464983940125 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
43 loss:  0.5603764057159424 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
44 loss:  0.5588172078132629 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
45 loss:  0.5584632754325867 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
46 loss:  0.5565395355224609 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
47 loss:  0.5548029541969299 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
48 loss:  0.5542733669281006 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
49 loss:  0.5534438490867615 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
50 loss:  0.5520094037055969 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
51 loss:  0.5510937571525574 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
52 loss:  0.5506715178489685 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
53 loss:  0.5493640303611755 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
54 loss:  0.548336923122406 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
55 loss:  0.5478048920631409 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
56 loss:  0.5469381213188171 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
57 loss:  0.545922577381134 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
58 loss:  0.5454025268554688 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
59 loss:  0.544852077960968 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
60 loss:  0.5439804196357727 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
61 loss:  0.5434582233428955 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
62 loss:  0.5429832935333252 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
63 loss:  0.5422741174697876 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
64 loss:  0.5417040586471558 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
65 loss:  0.5413308143615723 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
66 loss:  0.5407487750053406 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
67 loss:  0.5402576923370361 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
68 loss:  0.5399190187454224 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
69 loss:  0.5394622683525085 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
70 loss:  0.5390090942382812 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
71 loss:  0.5387027263641357 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
72 loss:  0.538316011428833 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
73 loss:  0.5379175543785095 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
74 loss:  0.5376288890838623 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
75 loss:  0.5372945666313171 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
76 loss:  0.5369362235069275 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
77 loss:  0.5366637110710144 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
78 loss:  0.5363660454750061 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
79 loss:  0.53604656457901 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
80 loss:  0.5357930064201355 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
81 loss:  0.5355223417282104 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
82 loss:  0.5352355241775513 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
83 loss:  0.5349991917610168 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
84 loss:  0.5347511172294617 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
85 loss:  0.5344937443733215 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
86 loss:  0.5342753529548645 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
87 loss:  0.534046471118927 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
88 loss:  0.5338148474693298 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
89 loss:  0.5336135029792786 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
90 loss:  0.5334023833274841 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
91 loss:  0.533194899559021 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
92 loss:  0.5330093502998352 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
93 loss:  0.53281569480896 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
94 loss:  0.5326292514801025 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
95 loss:  0.5324582457542419 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
96 loss:  0.5322802066802979 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
97 loss:  0.5321123003959656 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
98 loss:  0.5319531559944153 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello
99 loss:  0.5317898392677307 prediction:  [[1 3 2 3 3 4]] true Y:  [[1, 0, 2, 3, 3, 4]] prediction str:  ilello