Files
lerobot_piper/lerobot/configs/policy/act.yaml
Simon Alibert 791506dfb8 Remove warnings (#111)
- Replace `use_pretrained_backbone` with `pretrained_backbone_weights`
- Bump diffusers' minimum version `0.26.3` -> `0.27.2`
- Add ignore flags in CI's pytest
- Change Box observation spaces in simulation environments
- Set `version_base="1.2"` in Hydra initializations
- Bump einops' minimum version `0.7.0` -> `0.8.0`
2024-04-29 00:31:33 +02:00

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YAML

# @package _global_
offline_steps: 80000
online_steps: 0
eval_episodes: 1
eval_freq: 10000
save_freq: 100000
log_freq: 250
n_obs_steps: 1
# when temporal_agg=False, n_action_steps=horizon
override_dataset_stats:
observation.images.top:
# stats from imagenet, since we use a pretrained vision model
mean: [[[0.485]], [[0.456]], [[0.406]]] # (c,1,1)
std: [[[0.229]], [[0.224]], [[0.225]]] # (c,1,1)
# See `configuration_act.py` for more details.
policy:
name: act
pretrained_model_path:
# Input / output structure.
n_obs_steps: ${n_obs_steps}
chunk_size: 100 # chunk_size
n_action_steps: 100
input_shapes:
# TODO(rcadene, alexander-soare): add variables for height and width from the dataset/env?
observation.images.top: [3, 480, 640]
observation.state: ["${env.state_dim}"]
output_shapes:
action: ["${env.action_dim}"]
# Normalization / Unnormalization
input_normalization_modes:
observation.images.top: mean_std
observation.state: mean_std
output_normalization_modes:
action: mean_std
# Architecture.
# Vision backbone.
vision_backbone: resnet18
pretrained_backbone_weights: ResNet18_Weights.IMAGENET1K_V1
replace_final_stride_with_dilation: false
# Transformer layers.
pre_norm: false
d_model: 512
n_heads: 8
dim_feedforward: 3200
feedforward_activation: relu
n_encoder_layers: 4
n_decoder_layers: 1
# VAE.
use_vae: true
latent_dim: 32
n_vae_encoder_layers: 4
# Inference.
use_temporal_aggregation: false
# Training and loss computation.
dropout: 0.1
kl_weight: 10.0
# ---
# TODO(alexander-soare): Remove these from the policy config.
batch_size: 8
lr: 1e-5
lr_backbone: 1e-5
weight_decay: 1e-4
grad_clip_norm: 10
utd: 1
delta_timestamps:
action: "[i / ${fps} for i in range(${policy.chunk_size})]"