AWhat changed
Introduced focal loss to down-weight easy negatives in dense object detection and demonstrated it with RetinaNet.
Scientific scope
Introduced focal loss to down-weight easy negatives in dense object detection and demonstrated it with RetinaNet. Scope limitation: Focal loss and the RetinaNet evaluation are one contribution package; not the invention of one-stage object detection.
Evidence
The retained primary-source abstract, bibliographic record and stated review scope support this provisional assessment. No independent experimental replication by WRS is claimed. Focal loss and the RetinaNet evaluation are one contribution package; not the invention of one-stage object detection.
Contributors
- The named authors listed in the linked research record · SCIENCE: Complete source byline retained in the research record; human research direction, method development and evaluation. Individual labor shares are not measured.
- Lin and colleagues: focal loss and RetinaNet — original paper
- Lin and colleagues: focal loss and RetinaNet — official company source
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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