Update curated README documentation: data/embeddings/rnafm_full_transcript/README.md
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data/embeddings/rnafm_full_transcript/README.md
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## Public files
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- `embeddings.npz`: compressed NumPy archive containing the embedding matrix under key `embeddings`.
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- `genes.tsv`: row metadata table. Row order matches the embedding matrix.
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- `metadata.json`: machine-readable provenance and processing metadata.
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- `README.md`: this per-embedding documentation file.
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## Matrix
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- Shape: `19976 genes × 640 dimensions`
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- Dtype: `float32`
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- NPZ array key: `embeddings`
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The row order is authoritative:
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```text
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embeddings.npz['embeddings'][i, :] corresponds to genes.tsv row i
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```
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## Loading example
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```python
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import numpy as np
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import pandas as pd
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with np.load('embeddings.npz') as z:
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X = z['embeddings']
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genes = pd.read_csv('genes.tsv', sep='\t')
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assert X.shape[0] == len(genes)
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```
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## genes.tsv columns
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| Column | Non-empty values | Unique values | Example values | Meaning |
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|---|---:|---:|---|---|
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| `ensembl_gene_id` | 19976 | 19976 | ENSG00000000003<br>ENSG00000000005<br>ENSG00000000419<br>ENSG00000000457 | Ensembl gene identifier; main stable identifier used to align genes across embeddings. |
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| `rnafm_sequence_length` | 19976 | 7597 | 3768<br>1205<br>1054<br>6308 |
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| `num_chunks` | 19976 | 37 | 5<br>2<br>8<br>3 | Number of chunks/windows used when the input was too long. |
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| `transcript_id` | 19976 | 19976 | ENST00000373020<br>ENST00000373031<br>ENST00000371588<br>ENST00000367771 | Transcript identifier used for sequence-based processing. |
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## Basic metadata
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| Field | Value |
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| `status` | processed_qc_passed |
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| `embedding_name` | rnafm_full_transcript_v1_1 |
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| `model_checkpoint` | /local/home/dtabares/data/raw_embeddings/rnafm_full_transcript_v1_1/hf_model/RNA-FM_pretrained.pth |
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| `pooling_strategy` | Final layer 12 mean token pooling over real RNA tokens only; BOS/EOS excluded; long transcripts split into chunks and chunk means length-weighted |
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## Detailed processing notes
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# Embedding name: RNA-FM-full-transcript
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- Modality: RNA/mRNA sequence / full mature transcript language-model embedding
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- Algorithm: Transformer RNA language model
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- Embedding source URL: Local generation from Ensembl release 114 GRCh38 mature RNA transcript sequences and master_gene_table.csv
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- Original model/code URL: https://github.com/ml4bio/RNA-FM
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## Public files
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- `embeddings.npz`: compressed NumPy archive containing the embedding matrix under key `embeddings`.
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- `genes.tsv`: row metadata table. Row order matches the embedding matrix.
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- `metadata.json`: machine-readable provenance and processing metadata.
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## Matrix
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- Shape: `19976 genes × 640 dimensions`
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- Dtype: `float32`
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## genes.tsv columns
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| Column | Non-empty values | Unique values | Example values | Meaning |
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|---|---:|---:|---|---|
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| `ensembl_gene_id` | 19976 | 19976 | ENSG00000000003<br>ENSG00000000005<br>ENSG00000000419<br>ENSG00000000457 | Ensembl gene identifier; main stable identifier used to align genes across embeddings. |
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| `rnafm_sequence_length` | 19976 | 7597 | 3768<br>1205<br>1054<br>6308 | Length in nucleotides of the mature raw RNA transcript sequence used as RNA-FM input for this gene. |
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| `num_chunks` | 19976 | 37 | 5<br>2<br>8<br>3 | Number of chunks/windows used when the input was too long. |
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| `transcript_id` | 19976 | 19976 | ENST00000373020<br>ENST00000373031<br>ENST00000371588<br>ENST00000367771 | Transcript identifier used for sequence-based processing. |
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## Detailed processing notes
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### Source and interpretation
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This embedding is a gene-level mature RNA transcript representation derived from RNA-FM. It was generated locally from the mature transcript sequence universe prepared from Ensembl release 114 GRCh38 cDNA sequences and the canonical transcript IDs in master_gene_table.csv.
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The model used was RNA-FM / `rna_fm_t12` with the official pretrained checkpoint `RNA-FM_pretrained.pth`. For each matched gene, the mature transcript sequence was represented as raw RNA sequence. No Helix-specific `E` codon-start markers were inserted. RNA-FM final layer 12 token representations were extracted, BOS/EOS tokens were excluded, token embeddings were mean-pooled within each chunk, and long transcripts were combined by sequence-length weighted mean pooling across chunks.
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This embedding should therefore be interpreted as a full mature transcript RNA language-model representation. It differs from Helix-mRNA because it uses raw RNA sequence without CDS-aware `E` markers, and it differs from CDS-only DNA embeddings because it includes UTR sequence from the mature transcript.
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### Provenance fields
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source_name: RNA-FM full mature transcript
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original_model_or_method: RNA-FM / rna_fm_t12 RNA language model
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input_sequence_type: mature RNA full transcript
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input_sequence_source: Ensembl release 114 GRCh38 cDNA-derived mature RNA sequences and master_gene_table.csv canonical transcript IDs
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genome_build: GRCh38
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sequence_reference: Ensembl release 114
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model_checkpoint: RNA-FM_pretrained.pth
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model_checkpoint_sha256: 5b5d7d87b37c291ef42c140ef9edf7aea29f255fa2a4fd435f776c52e93d5e99
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model_code_url: https://github.com/ml4bio/RNA-FM
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model_interface: fm.pretrained.rna_fm_t12()
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model_output_dimension: 640
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final_layer_used: 12
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chunk_len: 900
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min_chunk_len: 0
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batch_size: 1
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pooling_strategy: mean pooling over final layer 12 token embeddings, excluding BOS/EOS tokens, with sequence-length weighted mean across chunks
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training_or_finetuning: none
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### Sequence and transcript decisions
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The source gene set came from master_gene_table.csv. Canonical transcript IDs from the master table were used to select one mature transcript sequence per gene from the Ensembl release 114 GRCh38 cDNA FASTA.
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RNA-FM reused the raw mature RNA sequence universe prepared during the Helix-mRNA workflow. However, it used the raw RNA FASTA without Helix `E` codon-start markers. This decision prevents Helix-specific input formatting from contaminating the RNA-FM representation.
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Genes without a matched mature transcript sequence, without a matched CDS sequence from the shared preparation workflow, or where sequence preparation failed were excluded from this embedding.
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### Processing workflow
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For each gene in the mature RNA transcript table:
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1. Read the canonical transcript ID from master_gene_table.csv.
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2. Reuse the mature transcript sequence table prepared from Ensembl release 114 GRCh38 cDNA.
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3. Convert mature cDNA-derived sequence to raw RNA sequence.
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4. Use the raw RNA sequence without Helix E markers.
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5. Load RNA-FM / rna_fm_t12 from the local checkpoint cache.
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6. Split long transcript sequences into 900 nt chunks.
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7. Run RNA-FM with batch_size=1.
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8. Extract final layer 12 token representations.
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9. Exclude BOS/EOS tokens from pooling.
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10. Mean-pool token embeddings within each chunk.
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11. Combine chunk vectors with sequence-length weighted mean pooling.
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12. Save the final matrix as float32.
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### Important implementation decisions
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The standard RNA-FM loader attempted to use an external CUHK checkpoint URL that could return 403. The final workflow copied the HuggingFace snapshot checkpoint into the torch hub checkpoint cache so `fm.pretrained.rna_fm_t12()` could load the official checkpoint locally and reproducibly.
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The final run used `chunk_len=900` and `min_chunk_len=0`. An earlier test with `min_chunk_len=200` could merge a short final chunk into the previous chunk and exceed RNA-FM's effective position limit. Setting `min_chunk_len=0` kept every chunk safely within the tested token length.
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No model training or fine-tuning was performed. The final matrix was generated only by local inference from the official pretrained checkpoint.
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### Summary of final mapping:
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Source identifiers / mature transcript sequences: 19,976
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Dimensions: 640
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Rows generated before duplicate collapse: 19,976
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Missing/failed sequence genes: 121
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Unmapped source rows: 0
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Ambiguous source rows: 0
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Final mapped genes: 19,976
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Master table rows: 20,097
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Master coverage: 99.398%
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Duplicate final mappings averaged: 0
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