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Michael J. Witbrock

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#artificial intelligence Preprint Sep 2026

Not What You Meant: Can LLMs Follow a Specified Negation Semantics?

NAFBench is introduced, a procedural generator of solver-certified instances spanning four semantic viewpoints: SLDNF, well-founded semantics (WFS), and credulous and skeptical reasoning under stable-model semantics, which studies which reading of negation large language models adopt by default and whether they can ove...

Qiming Bao, Agnieszka Mensfelt, Michael J. Witbrock et al. · 0 citations
#natural language process... Preprint Sep 2026

PunGraph: Retrieval-Enhanced Phonetic-Semantic Graph Reasoning for Pun Understanding

Experiments on SemEval-2017 and WebPun show that PunGraph consistently improves the performance of small-scale LLMs and achieves competitive results against strong proprietary models, highlighting the benefits of integrating structured knowledge with LLMs.

Yuchen Su, Zijian Huang, Yao-Tian Shi et al. · 0 citations

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