🩺 Medical NLP

🤖 AAAI2026 · 2 paper notes

📌 Same area in other venues: 💬 ACL2026 (8) · 🔬 ICLR2026 (5) · 🧠 NeurIPS2025 (6)

🔥 Top topics: Medical Imaging ×2

BiCA: Effective Biomedical Dense Retrieval with Citation-Aware Hard Negatives

This paper proposes a hard negative mining method that constructs a multi-hop semantic graph from PubMed citation chains and performs random walks thereon. Using only 20k training samples and minimal fine-tuning steps, 33M/110M small models surpass retrieval baselines with billions of parameters on BEIR and LoTTE.

PulseMind: A Multi-Modal Medical Model for Real-World Clinical Diagnosis

This paper proposes PulseMind, a multimodal medical diagnostic model comprising three core contributions: MediScope, a large-scale multi-turn diagnostic dialogue dataset; PulseMind Benchmark, a multi-dimensional clinical dialogue evaluation benchmark; and CRPO, a comparison-based reinforcement policy optimization method. The system achieves superior performance in real-world clinical diagnostic dialogue scenarios.