Boundary-aware multi-label span classification with hard negatives and containment NMS, plus independent RoBERTa document classification, ranks 7th/11-12th on PsyCoMark conspiracy tasks.
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UCSC NLP at SemEval-2026 Task 10: Boundary-Aware Span Extraction and RoBERTa Classification for Conspiracy Detection
Boundary-aware multi-label span classification with hard negatives and containment NMS, plus independent RoBERTa document classification, ranks 7th/11-12th on PsyCoMark conspiracy tasks.