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Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code:   StreamingRowsError
Exception:    CastError
Message:      Couldn't cast
descriptor: struct<execution: struct<accumulator_dtype: string, attention_backend: string, batch_policy: struct< (... 1853 chars omitted)
  child 0, execution: struct<accumulator_dtype: string, attention_backend: string, batch_policy: struct<algorithm: string, (... 640 chars omitted)
      child 0, accumulator_dtype: string
      child 1, attention_backend: string
      child 2, batch_policy: struct<algorithm: string, max_sequences: int64, max_tokens: int64, window_size: int64>
          child 0, algorithm: string
          child 1, max_sequences: int64
          child 2, max_tokens: int64
          child 3, window_size: int64
      child 3, compute_dtype: string
      child 4, device_type: string
      child 5, engine_sha256: string
      child 6, kernel_sha256: null
      child 7, numerical_policy: struct<autocast_dtype: string, autocast_enabled: bool, cuda_matmul_allow_tf32: bool, cudnn_allow_tf3 (... 188 chars omitted)
          child 0, autocast_dtype: string
          child 1, autocast_enabled: bool
          child 2, cuda_matmul_allow_tf32: bool
          child 3, cudnn_allow_tf32: bool
          child 4, deterministic_algorithms: bool
          child 5, float32_matmul_precision: string
          child 6, hardware: struct<cpu_capability: string, cuda_capability: list<item: int64>, cuda_name: string, machine: strin (... 2 chars omitted)
              child 0, cpu_capability: string
              child 1, cuda_capability: list<item: int64>
                  child 0, item
...
 426 chars omitted)
  child 0, decoder_hidden: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
      child 0, descriptor_sha256: string
      child 1, dtype: string
      child 2, key: string
      child 3, layout: string
      child 4, sparse_count: null
      child 5, width: int64
  child 1, decoder_mean_var: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
      child 0, descriptor_sha256: string
      child 1, dtype: string
      child 2, key: string
      child 3, layout: string
      child 4, sparse_count: null
      child 5, width: int64
  child 2, encoder_hidden: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
      child 0, descriptor_sha256: string
      child 1, dtype: string
      child 2, key: string
      child 3, layout: string
      child 4, sparse_count: null
      child 5, width: int64
  child 3, encoder_mean_var: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
      child 0, descriptor_sha256: string
      child 1, dtype: string
      child 2, key: string
      child 3, layout: string
      child 4, sparse_count: null
      child 5, width: int64
unit: string
volume: string
label: string
row_layout: string
family: string
sae_layer: null
volume_directory: string
to
{'base': Value('string'), 'family': Value('string'), 'hub_repo': Value('string'), 'label': Value('string'), 'max_units': Value('int64'), 'model_state_sha256': Value('string'), 'normalization': Value('string'), 'pins': {'model': {'files': {'config.json': Value('string'), 'model.safetensors': Value('string'), 'special_tokens_map.json': Value('string'), 'tokenizer.json': Value('string'), 'tokenizer_config.json': Value('string')}, 'repository': Value('string'), 'revision': Value('string')}, 'tokenizer': {'files': {'special_tokens_map.json': Value('string'), 'tokenizer.json': Value('string'), 'tokenizer_config.json': Value('string')}, 'repository': Value('string'), 'revision': Value('string')}}, 'random_init': Value('null'), 'row_layout': Value('string'), 'sae_layer': Value('null'), 'schema': Value('string'), 'special_tokens': Value('string'), 'streams': {'decoder_hidden': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}, 'decoder_mean_var': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}, 'encoder_hidden': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}, 'encoder_mean_var': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}}, 'unit': Value('string'), 'volume': Value('string'), 'volume_directory': Value('string')}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
                  return get_rows(
                      dataset=dataset,
                  ...<4 lines>...
                      column_names=column_names,
                  )
                File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
                  return func(*args, **kwargs)
                File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
                  rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
                File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
                  yield from ds.decode(False) if ds.features else ds
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2951, in __iter__
                  for key, example in ex_iterable:
                                      ^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2461, in __iter__
                  for key, pa_table in self._iter_arrow():
                                       ~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2486, in _iter_arrow
                  for key, pa_table in self.ex_iterable._iter_arrow():
                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 547, in _iter_arrow
                  for key, pa_table in iterator:
                                       ^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 430, in _iter_arrow
                  for key, pa_table in self.generate_tables_fn(**gen_kwags):
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              descriptor: struct<execution: struct<accumulator_dtype: string, attention_backend: string, batch_policy: struct< (... 1853 chars omitted)
                child 0, execution: struct<accumulator_dtype: string, attention_backend: string, batch_policy: struct<algorithm: string, (... 640 chars omitted)
                    child 0, accumulator_dtype: string
                    child 1, attention_backend: string
                    child 2, batch_policy: struct<algorithm: string, max_sequences: int64, max_tokens: int64, window_size: int64>
                        child 0, algorithm: string
                        child 1, max_sequences: int64
                        child 2, max_tokens: int64
                        child 3, window_size: int64
                    child 3, compute_dtype: string
                    child 4, device_type: string
                    child 5, engine_sha256: string
                    child 6, kernel_sha256: null
                    child 7, numerical_policy: struct<autocast_dtype: string, autocast_enabled: bool, cuda_matmul_allow_tf32: bool, cudnn_allow_tf3 (... 188 chars omitted)
                        child 0, autocast_dtype: string
                        child 1, autocast_enabled: bool
                        child 2, cuda_matmul_allow_tf32: bool
                        child 3, cudnn_allow_tf32: bool
                        child 4, deterministic_algorithms: bool
                        child 5, float32_matmul_precision: string
                        child 6, hardware: struct<cpu_capability: string, cuda_capability: list<item: int64>, cuda_name: string, machine: strin (... 2 chars omitted)
                            child 0, cpu_capability: string
                            child 1, cuda_capability: list<item: int64>
                                child 0, item
              ...
               426 chars omitted)
                child 0, decoder_hidden: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
                    child 0, descriptor_sha256: string
                    child 1, dtype: string
                    child 2, key: string
                    child 3, layout: string
                    child 4, sparse_count: null
                    child 5, width: int64
                child 1, decoder_mean_var: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
                    child 0, descriptor_sha256: string
                    child 1, dtype: string
                    child 2, key: string
                    child 3, layout: string
                    child 4, sparse_count: null
                    child 5, width: int64
                child 2, encoder_hidden: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
                    child 0, descriptor_sha256: string
                    child 1, dtype: string
                    child 2, key: string
                    child 3, layout: string
                    child 4, sparse_count: null
                    child 5, width: int64
                child 3, encoder_mean_var: struct<descriptor_sha256: string, dtype: string, key: string, layout: string, sparse_count: null, wi (... 11 chars omitted)
                    child 0, descriptor_sha256: string
                    child 1, dtype: string
                    child 2, key: string
                    child 3, layout: string
                    child 4, sparse_count: null
                    child 5, width: int64
              unit: string
              volume: string
              label: string
              row_layout: string
              family: string
              sae_layer: null
              volume_directory: string
              to
              {'base': Value('string'), 'family': Value('string'), 'hub_repo': Value('string'), 'label': Value('string'), 'max_units': Value('int64'), 'model_state_sha256': Value('string'), 'normalization': Value('string'), 'pins': {'model': {'files': {'config.json': Value('string'), 'model.safetensors': Value('string'), 'special_tokens_map.json': Value('string'), 'tokenizer.json': Value('string'), 'tokenizer_config.json': Value('string')}, 'repository': Value('string'), 'revision': Value('string')}, 'tokenizer': {'files': {'special_tokens_map.json': Value('string'), 'tokenizer.json': Value('string'), 'tokenizer_config.json': Value('string')}, 'repository': Value('string'), 'revision': Value('string')}}, 'random_init': Value('null'), 'row_layout': Value('string'), 'sae_layer': Value('null'), 'schema': Value('string'), 'special_tokens': Value('string'), 'streams': {'decoder_hidden': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}, 'decoder_mean_var': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}, 'encoder_hidden': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}, 'encoder_mean_var': {'descriptor_sha256': Value('string'), 'dtype': Value('string'), 'key': Value('string'), 'layout': Value('string'), 'sparse_count': Value('null'), 'width': Value('int64')}}, 'unit': Value('string'), 'volume': Value('string'), 'volume_directory': Value('string')}
              because column names don't match

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SELFIES-TED-LARGE token embeddings

Per-token and pooled rows. Model: lhallee/SELFIES-TED-LARGE at revision 259f46e840edca8fbc6963b17972f0cd004469e3, weights SHA-256 db34a6917e7635aaa25d8ad7a799898dd476e38bc639e1f35a576981f165be5e.

A row is one molecule, keyed by the SHA-256 of its canonical SMILES (foundry.chemistry.canonicalize_smiles). The model reads its SELFIES, cut after a whole symbol at 1022 symbols. inventory/*.parquet lists each row's SMILES, SELFIES, symbol count and row count.

A molecule of l symbols is l + 2 token rows: row 0 CLS, rows 1..l the symbols, row l + 1 SEP. Padding is the only masked position, and a pooled vector (mean, then population variance) covers all l + 2 rows. decoder_* is the state Atlas-PLI reads (BartModel.last_hidden_state, the decoder teacher forced on the molecule); encoder_* is the encoder's last_hidden_state. This repository holds the pooled streams of its rows too; Synthyra/selfies_ted_large_pooled_embeddings holds them alone.

stream layout width dtype
decoder_hidden ragged 1024 bfloat16
decoder_mean_var dense 2048 float32
encoder_hidden ragged 1024 bfloat16
encoder_mean_var dense 2048 float32

Read it with foundry.embedding.open_canonical_view(root, inventory) (a FeatureView), or with fastplms.features.FeatureStore directly. canonical.json lists the streams and pins each descriptor. The store only appends.

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