Squad V2 Optimized Span Boundary Detection

via “squad-v2-optimized span boundary detection”

question-answering model by undefined. 2,40,125 downloads.

Unique: Explicitly trained on SQuAD v2's 30% unanswerable questions with negative sampling, enabling the model to learn when to output null predictions rather than forcing spurious span selections — a critical capability absent in v1-only models

vs others: More robust than SQuAD v1-trained models on real-world QA because it has learned to recognize and correctly handle unanswerable questions, reducing false-positive answer predictions in production systems