bpe_glove_300_lora_r300_qwen3_hardnegs_nce_only

Continuation of jsanzolac/bpe_glove_300_lora_r300_qwen3 — same DriftingGloVeStudent rank=300 over a frozen 300-d cl100k BPE-GloVe — trained for an additional 150,000 steps with mined hard negatives from jsanzolac/qwen3_emb_512_hard_negatives.

Loss: cross_entropy(v @ [v_T ‖ v_hards]^T / τ) — MSE term disabled in this variant. with τ = 0.05, H = 64 mined hard negatives per anchor.

Warm-start: A.weight + B.weight from jsanzolac/bpe_glove_300_lora_r300_qwen3/rank_300/checkpoint_final.pt. Optimizer state was not in the source checkpoint, so this run uses a fresh LR schedule (5e-4 → 1e-5 cosine over 150,000 steps).

Frozen: E (300-d GloVe from jsanzolac/drifting-glove-distilled-r300), teacher (only used to produce the cached v_T targets in jsanzolac/qwen3_emb_300_packed_cl100k — not loaded here).

Files under rank_300/:

• checkpoint_final.pt — A.weight + B.weight (E excluded; reinject from jsanzolac/drifting-glove-distilled-r300).
• config.json
• vectors_drifted.txt / .parquet — E + B(A(·)) per vocab row.
• train_log.jsonl