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Author

Vasileios Lampos

2 papers indexed here

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#natural language process... Preprint Oct 2026

Improving Diversity in LLM Short Story Generation

Large language models (LLMs) can generate accurate responses, but these are void of diversity. We attempt to address this for the task of creative short story generation. Drawing on established writing conventions and known LLM limitations, we target variation in genre, tone, style, and named entities. To promote diver...

Zahra Solati Dehkordi, Vasileios Lampos · 0 citations
#machine learning Preprint Sep 2026

Removing the NEEDLE in the Haystack: Backdoor Removal in LLMs via Weight Orthogonalisation

This work proposes NEEDLE, a training-free method for targeted backdoor removal that achieves the lowest mean Attack Success Rate (ASR) among the evaluated defences, including 0% on challenging code injection attacks, while resulting in the lowest KL divergence and minimal changes in capability and safety.

Minoo Kim, Vasileios Lampos, George Drayson · 0 citations

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