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The hybrid improves on TF-IDF. The neural model alone does not.

Reported arXiv recommender evaluation. Mean average precision at ten, higher is better.
ModelMAP@10 (higher is better)Score95% interval
Hybrid0.1990.1990.186 to 0.213
TF-IDF0.1490.1490.137 to 0.161
MiniLM0.1210.121Not shown

2,000 evaluation seeds. Reported evaluation: 29 June 2026.

Figure 1. arXiv Recommender, mean average precision at ten on held-out seeds from a 28,000-paper OpenAlex snapshot. Hand-set blend. Restricted citation graph. Read the evaluation

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