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Qingni Wang

6 accepted papers

2026

COIN: Uncertainty-Guarding Selective Question Answering for Foundation Models with Provable Risk Guarantees

AAAI 2026technical

Uncertainty quantification (UQ) in foundation models is crucial for identifying and mitigating hallucinations in automatically generated text. However, heuristic UQ approaches lack statistical guarantees for key metrics such as the false discovery rate (FDR) in selective prediction tasks. Previous

Cited by 0SourcePDFScholar
2025

LongVALE: Vision-Audio-Language-Event Benchmark Towards Time-Aware Omni-Modal Perception of Long Videos

CVPR 2025poster

Despite impressive advancements in video understanding, most efforts remain limited to coarse-grained or visual-only video tasks. However, real-world videos encompass omni-modal information (vision, audio, and speech) with a series of events forming a cohesive storyline. The lack of multi-modal vide…

2025

SConU: Selective Conformal Uncertainty in Large Language Models

ACL 2025long

As large language models are increasingly utilized in real-world applications, guarantees of task-specific metrics are essential for their reliable deployment. Previous studies have introduced various criteria of conformal uncertainty grounded in split conformal prediction, which offer user-specifie…

2025

Sample then Identify: A General Framework for Risk Control and Assessment in Multimodal Large Language Models

ICLR 2025spotlight

Multimodal Large Language Models (MLLMs) exhibit promising advancements across various tasks, yet they still encounter significant trustworthiness issues. Prior studies apply Split Conformal Prediction (SCP) in language modeling to construct prediction sets with statistical guarantees. However, thes…

Cited by 6SourcePDFScholar
2024

ConU: Conformal Uncertainty in Large Language Models with Correctness Coverage Guarantees

EMNLP 2024finding

Uncertainty quantification (UQ) in natural language generation (NLG) tasks remains an open challenge, exacerbated by the closed-source nature of the latest large language models (LLMs). This study investigates applying conformal prediction (CP), which can transform any heuristic uncertainty notion i…