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config.json

@@ -1,6 +1,6 @@
 {
-    "type": "diffusion",
-    "n_obs_steps": 2,
+    "type": "act",
+    "n_obs_steps": 1,
     "input_features": {
         "observation.state": {
             "type": "STATE",
@@ -37,56 +37,35 @@
     "use_amp": false,
     "use_peft": false,
     "push_to_hub": true,
-    "repo_id": "H2Ozone/diffusion_coaster",
+    "repo_id": "H2Ozone/act_stack_coaster_2",
     "private": null,
     "tags": null,
     "license": null,
     "pretrained_path": null,
-    "horizon": 8,
-    "n_action_steps": 8,
+    "chunk_size": 16,
+    "n_action_steps": 4,
     "normalization_mapping": {
         "VISUAL": "MEAN_STD",
-        "STATE": "MIN_MAX",
-        "ACTION": "MIN_MAX"
+        "STATE": "MEAN_STD",
+        "ACTION": "MEAN_STD"
     },
-    "drop_n_last_frames": 7,
     "vision_backbone": "resnet18",
-    "resize_shape": null,
-    "crop_ratio": 1.0,
-    "crop_shape": null,
-    "crop_is_random": true,
-    "pretrained_backbone_weights": null,
-    "use_group_norm": true,
-    "spatial_softmax_num_keypoints": 32,
-    "use_separate_rgb_encoder_per_camera": false,
-    "down_dims": [
-        512,
-        1024,
-        2048
-    ],
-    "kernel_size": 5,
-    "n_groups": 8,
-    "diffusion_step_embed_dim": 128,
-    "use_film_scale_modulation": true,
-    "noise_scheduler_type": "DDPM",
-    "num_train_timesteps": 100,
-    "beta_schedule": "squaredcos_cap_v2",
-    "beta_start": 0.0001,
-    "beta_end": 0.02,
-    "prediction_type": "epsilon",
-    "clip_sample": true,
-    "clip_sample_range": 1.0,
-    "num_inference_steps": 4,
-    "compile_model": false,
-    "compile_mode": "reduce-overhead",
-    "do_mask_loss_for_padding": false,
-    "optimizer_lr": 0.0001,
-    "optimizer_betas": [
-        0.95,
-        0.999
-    ],
-    "optimizer_eps": 1e-08,
-    "optimizer_weight_decay": 1e-06,
-    "scheduler_name": "cosine",
-    "scheduler_warmup_steps": 500
+    "pretrained_backbone_weights": "ResNet18_Weights.IMAGENET1K_V1",
+    "replace_final_stride_with_dilation": false,
+    "pre_norm": false,
+    "dim_model": 512,
+    "n_heads": 8,
+    "dim_feedforward": 3200,
+    "feedforward_activation": "relu",
+    "n_encoder_layers": 4,
+    "n_decoder_layers": 1,
+    "use_vae": true,
+    "latent_dim": 32,
+    "n_vae_encoder_layers": 4,
+    "temporal_ensemble_coeff": null,
+    "dropout": 0.1,
+    "kl_weight": 10.0,
+    "optimizer_lr": 1e-05,
+    "optimizer_weight_decay": 0.0001,
+    "optimizer_lr_backbone": 1e-05
 }

model.safetensors

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:54cb9e8dd717fdd6645c94410000b061d9c4eca99d6efa53c6d195ddbfd98ffa
-size 1066518712
+oid sha256:21475dcdc564d352fda5c6d52de04d42cbfdb036fbeae978e99c8da4a15c5815
+size 206355664

policy_postprocessor.json

@@ -15,8 +15,8 @@
         },
         "norm_map": {
           "VISUAL": "MEAN_STD",
-          "STATE": "MIN_MAX",
-          "ACTION": "MIN_MAX"
+          "STATE": "MEAN_STD",
+          "ACTION": "MEAN_STD"
         }
       },
       "state_file": "policy_postprocessor_step_0_unnormalizer_processor.safetensors"

policy_preprocessor.json

@@ -54,8 +54,8 @@
         },
         "norm_map": {
           "VISUAL": "MEAN_STD",
-          "STATE": "MIN_MAX",
-          "ACTION": "MIN_MAX"
+          "STATE": "MEAN_STD",
+          "ACTION": "MEAN_STD"
         }
       },
       "state_file": "policy_preprocessor_step_3_normalizer_processor.safetensors"

train_config.json

@@ -81,8 +81,8 @@
     },
     "env": null,
     "policy": {
-        "type": "diffusion",
-        "n_obs_steps": 2,
+        "type": "act",
+        "n_obs_steps": 1,
         "input_features": {
             "observation.state": {
                 "type": "STATE",
@@ -119,89 +119,64 @@
         "use_amp": false,
         "use_peft": false,
         "push_to_hub": true,
-        "repo_id": "H2Ozone/diffusion_coaster",
+        "repo_id": "H2Ozone/act_stack_coaster_2",
         "private": null,
         "tags": null,
         "license": null,
         "pretrained_path": null,
-        "horizon": 8,
-        "n_action_steps": 8,
+        "chunk_size": 16,
+        "n_action_steps": 4,
         "normalization_mapping": {
             "VISUAL": "MEAN_STD",
-            "STATE": "MIN_MAX",
-            "ACTION": "MIN_MAX"
+            "STATE": "MEAN_STD",
+            "ACTION": "MEAN_STD"
         },
-        "drop_n_last_frames": 7,
         "vision_backbone": "resnet18",
-        "resize_shape": null,
-        "crop_ratio": 1.0,
-        "crop_shape": null,
-        "crop_is_random": true,
-        "pretrained_backbone_weights": null,
-        "use_group_norm": true,
-        "spatial_softmax_num_keypoints": 32,
-        "use_separate_rgb_encoder_per_camera": false,
-        "down_dims": [
-            512,
-            1024,
-            2048
-        ],
-        "kernel_size": 5,
-        "n_groups": 8,
-        "diffusion_step_embed_dim": 128,
-        "use_film_scale_modulation": true,
-        "noise_scheduler_type": "DDPM",
-        "num_train_timesteps": 100,
-        "beta_schedule": "squaredcos_cap_v2",
-        "beta_start": 0.0001,
-        "beta_end": 0.02,
-        "prediction_type": "epsilon",
-        "clip_sample": true,
-        "clip_sample_range": 1.0,
-        "num_inference_steps": 4,
-        "compile_model": false,
-        "compile_mode": "reduce-overhead",
-        "do_mask_loss_for_padding": false,
-        "optimizer_lr": 0.0001,
-        "optimizer_betas": [
-            0.95,
-            0.999
-        ],
-        "optimizer_eps": 1e-08,
-        "optimizer_weight_decay": 1e-06,
-        "scheduler_name": "cosine",
-        "scheduler_warmup_steps": 500
+        "pretrained_backbone_weights": "ResNet18_Weights.IMAGENET1K_V1",
+        "replace_final_stride_with_dilation": false,
+        "pre_norm": false,
+        "dim_model": 512,
+        "n_heads": 8,
+        "dim_feedforward": 3200,
+        "feedforward_activation": "relu",
+        "n_encoder_layers": 4,
+        "n_decoder_layers": 1,
+        "use_vae": true,
+        "latent_dim": 32,
+        "n_vae_encoder_layers": 4,
+        "temporal_ensemble_coeff": null,
+        "dropout": 0.1,
+        "kl_weight": 10.0,
+        "optimizer_lr": 1e-05,
+        "optimizer_weight_decay": 0.0001,
+        "optimizer_lr_backbone": 1e-05
     },
-    "output_dir": "outputs/train/diffusion_stack",
-    "job_name": "diffusion_stack",
+    "output_dir": "outputs/train/act_stack_coaster_2",
+    "job_name": "act_stack_coaster_2",
     "resume": false,
     "seed": 1000,
     "cudnn_deterministic": false,
     "num_workers": 4,
-    "batch_size": 4,
+    "batch_size": 12,
     "steps": 200000,
     "eval_freq": 20000,
     "log_freq": 200,
     "tolerance_s": 0.0001,
     "save_checkpoint": true,
-    "save_freq": 10000,
+    "save_freq": 20000,
     "use_policy_training_preset": true,
     "optimizer": {
-        "type": "adam",
-        "lr": 0.0001,
-        "weight_decay": 1e-06,
+        "type": "adamw",
+        "lr": 1e-05,
+        "weight_decay": 0.0001,
         "grad_clip_norm": 10.0,
         "betas": [
-            0.95,
+            0.9,
             0.999
         ],
         "eps": 1e-08
     },
-    "scheduler": {
-        "type": "diffuser",
-        "num_warmup_steps": 500,
-        "name": "cosine"
-    },
+    "scheduler": null,
     "eval": {
         "n_episodes": 50,
         "batch_size": 50,
@@ -213,7 +188,7 @@
         "project": "lerobot",
         "entity": null,
         "notes": null,
-        "run_id": "kj3yuy6g",
+        "run_id": "mcvza8dw",
         "mode": null,
         "add_tags": true
     },