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{
  "dataset_name": "SpecFormer",
  "dataset_version": "SpecFormer_v2",
  "profile_name": "full",
  "seed": 20260512005404,
  "source_dataset_ids": [
    "src_00_full"
  ],
  "prepared_sample_count": 11000000,
  "shard_size": 10000,
  "n_shards": 1101,
  "target_field_order": [
    "vis_R",
    "vis_T",
    "nir_R",
    "nir_T",
    "ir_E_normal"
  ],
  "target_field_length": 774,
  "prepared_split_ratios": {
    "train": 0.9090909090909091,
    "test": 0.045454545454545456,
    "val": 0.045454545454545456
  },
  "condition_modes": [
    "full_condition",
    "vis_only",
    "nir_only",
    "ir_only",
    "vis_nir",
    "vis_ir",
    "nir_ir",
    "custom_channel_subset"
  ],
  "weak_unspecified_constraints": false,
  "record_format": "compact_jsonl_gz_plus_target_uint16_x1000",
  "split_stats": {
    "train_count": 10000000,
    "val_count": 500000,
    "test_count": 500000,
    "hard_test_count": 40,
    "ood_test_count": 40,
    "n_strata": 160,
    "split_format": "npz_refs_plus_txt_ids"
  },
  "resume": true,
  "attempt_count": 25920607,
  "balance_skip_count": 3201656,
  "num_workers": 20,
  "max_inflight_tasks": 80,
  "worker_batch_size": 16,
  "report_interval_sec": 20.0,
  "targets": {
    "total_samples": 11000000,
    "train": 10000000,
    "val": 500000,
    "test": 500000,
    "hard_test": 40,
    "ood_test": 40
  },
  "switches": {
    "allow_adjacent_same_material": false,
    "max_metal_layers": 2,
    "allow_top_metal": true,
    "allow_bottom_metal": true,
    "require_spacer_in_cavity": true,
    "require_ir_active_in_thermal": true,
    "enforce_role_first_sampling": true,
    "enable_distribution_balancing": true,
    "enable_deduplication": true,
    "enable_degenerate_sample_rejection": true,
    "layer_bucket_balancing": true
  },
  "published_format": "hf_parquet_uint16_target_plus_padded_meta_v1",
  "local_path_fields_removed": true
}