nishantwhat/robustrag-longformer-head

RobustRAG: Longformer-1024 (Head Truncation - Project Best)

State-of-the-art Longformer model with answer-preserving tokenization and sliding window attention. ROC-AUC: 0.8296 | PR-AUC: 0.7527 | Accuracy: 79.78% on RAGTruth test set.