FACT rial: Factorized Clinical Contrastive Training for Scalable Patient-Trial Retrieval
Xuanren Chen · Chongyang Tao · Tao Shen · Shuai Ma
摘要
Patient–trial retrieval is a challenging problem that requires nuanced clinical reasoning beyond surface-level semantic similarity. However, scarce and costly relevance annotations force existing approaches to rely on very limited supervision or zero-shot transfer, reducing the task to generic se...