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A germline shortcut in protein language model retrieval of adaptive immune receptors

Jul 2026 · bioRxiv · 0 citations · 13 references
Biology

TL;DR

It is shown that conventional random train-test splits inflate retrieval accuracy by 15–28 percentage points owing to clonal leakage, and clone-aware benchmarking as a practical standard of comparison is established, defining the strengths and limitations of frozen zero-shot PLM embeddings for immune receptor retrieval and establishing clone-aware benchmarking as a practical standard of comparison.

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