defaults:
  - override /mapping: null
  - override /criterion: null
  - override /datamodule: null
  - override /network: null
  - override /model: null
  - override /lr_schedulers: null
  # - override /optimizers: null


criterion:
  _target_: text_recognizer.criterions.label_smoothing.LabelSmoothingLoss
  smoothing: 0.1 
  ignore_index: 3
    
mapping:
  _target_: text_recognizer.data.emnist_mapping.EmnistMapping
  # extra_symbols: [ "\n" ]

lr_schedulers:
  network:
    _target_: torch.optim.lr_scheduler.CosineAnnealingLR
    T_max: 512
    eta_min: 4.5e-6
    last_epoch: -1
    interval: epoch
    monitor: val/loss

datamodule:
  _target_: text_recognizer.data.iam_lines.IAMLines
  batch_size: 4
  num_workers: 12
  train_fraction: 0.8
  augment: false
  pin_memory: false


# optimizers:
#   - _target_: madgrad.MADGRAD
#     lr: 2.0e-4
#     momentum: 0.9
#     weight_decay: 0
#     eps: 1.0e-7
#     parameters: network

network:
  _target_: text_recognizer.networks.vq_transformer.VqTransformer
  input_dims: [1, 56, 1024]
  encoder_dim: 32
  hidden_dim: 32
  dropout_rate: 0.1
  num_classes: 58
  pad_index: 3
  no_grad: true
  decoder:
    _target_: text_recognizer.networks.transformer.Decoder
    dim: 32
    depth: 4
    num_heads: 8
    attn_fn: text_recognizer.networks.transformer.attention.Attention
    attn_kwargs:
      dim_head: 32
      dropout_rate: 0.2
    norm_fn: torch.nn.LayerNorm
    ff_fn: text_recognizer.networks.transformer.mlp.FeedForward
    ff_kwargs:
      dim_out: null
      expansion_factor: 4
      glu: true
      dropout_rate: 0.2
    cross_attend: true
    pre_norm: true
    rotary_emb: null
  pretrained_encoder_path: "training/logs/runs/2021-09-26/23-27-57"

model:
  _target_: text_recognizer.models.vq_transformer.VqTransformerLitModel
  start_token: <s>
  end_token: <e>
  pad_token: <p>
  max_output_len: 89  # 451
  alpha: 0.0

trainer:
  max_epochs: 512
  # limit_train_batches: 0.1
  # limit_val_batches: 0.1
  # gradient_clip_val: 0.5