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Sonia Bergamaschi

3 accepted papers

2025

COVER: Context-Driven Over-Refusal Verification in LLMs

ACL 2025finding

We introduce the concept of context-driven over-refusal, an abstention arising when model’s safety guardrails are triggered by the grounding knowledge provided alongside the user’s request. Distinct from question-driven over-refusal, this occurs in both retrieval-augmented generation (RAG) and natur…

2024

RoBERT2VecTM: A Novel Approach for Topic Extraction in Islamic Studies

EMNLP 2024finding

Investigating “Hadith” texts, crucial for theological studies and Islamic jurisprudence, presents challenges due to the linguistic complexity of Arabic, such as its complex morphology. In this paper, we propose an innovative approach to address the challenges of topic modeling in Hadith studies by u…

Cited by 1SourcePDFScholar
2019

Face Landmark-based Speaker-independent Audio-visual Speech Enhancement in Multi-talker Environments

ICASSP 2019accepted

In this paper, we address the problem of enhancing the speech of a speaker of interest in a cocktail party scenario when visual information of the speaker of interest is available.Contrary to most previous studies, we do not learn visual features on the typically small audio-visual datasets, but use…

Cited by 0SourceScholar