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Shirin Nilizadeh

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#natural language process... Preprint Sep 2026

Structured Claim-Level Discourse Representations for Dense Health Narratives

This work introduces a structured framework for claim-level discourse analysis in dense health narratives through tuples linking atomic claims with thematic aspects, stance, and multidimensional pragmatic discourse attributes and evaluates automated structured discourse analysis under different discourse context settin...

Farnoushsadat Nilizadeh, Elham Pourabbas Vafa, Shirin Nilizadeh et al. · 0 citations
Jun 2026

Detect, Unlearn, Restore: Defending Text Summarization Models Against Data Poisoning

Training-time data poisoning during fine-tuning poses a significant threat to large language models (LLMs) deployed for abstractive text summarization, where small task-specific datasets exert disproportionate influence on model behavior. In this setting, adversaries manipulate fine-tuning data to induce persistent sum...

Poojitha Thota, Shirin Nilizadeh · 0 citations

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