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Author

D. Bollegala

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#artificial intelligence Preprint Sep 2026

Decoupling Internal Representational Changes and Causal Importance in Fine-Tuned Large Language Models

This work investigates how fine-tuning alters internal representations in LLMs, including attention patterns and layer-wise activations, and examines whether these changes are linked to task-relevant components identified by EAP that drive task performance.

Ling-Fang Li, Procheta Sen, Shubham Das et al. · 0 citations
#natural language process... Preprint Sep 2026

WiC is Not WSD: A Study on LLMs and Lexical Ambiguity Resolution

Word-in-Context (WiC) remains challenging for language models, despite recent progress on lexical-semantic tasks. We hypothesise that this difficulty arises not only from comparing two contextual uses of a word, but also from the absence of an explicit sense inventory that specifies the relevant level of semantic granu...

Yi Zhou, Kiamehr Rezaee, D. Bollegala et al. · 0 citations
#natural language process... Preprint Sep 2026

Cross-Lingual Representation Alignment by Token-Level Optimal Transport in a Language-Agnostic Space

Cross-lingual alignment (CLA) aims to align the representations of large language models (LLMs) across languages, enabling cross-lingual transfer to improve multilingual capabilities. Previous CLA methods often ignore language-specific information encoded in representations and only consider sentence-level alignment, w...

Taisei Yamamoto, Ryoma Kumon, D. Bollegala et al. · 0 citations

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