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5 changes: 5 additions & 0 deletions lab3/text_recognizer/lit_models/ctc.py
Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import argparse
import itertools
import torch
import pytorch_lightning as pl

from .base import BaseLitModel
from .metrics import CharacterErrorRate
Expand Down Expand Up @@ -45,6 +46,10 @@ def __init__(self, model, args: argparse.Namespace = None):

self.loss_fn = torch.nn.CTCLoss(zero_infinity=True)
# https://pytorch.org/docs/stable/generated/torch.nn.CTCLoss.html

self.train_acc = pl.metrics.Accuracy()
self.val_acc = pl.metrics.Accuracy()
self.test_acc = pl.metrics.Accuracy()

ignore_tokens = [start_index, end_index, self.padding_index]
self.val_cer = CharacterErrorRate(ignore_tokens)
Expand Down