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Author

O. M. Mastromichalakis

2 papers indexed here

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#natural language process... Preprint Sep 2026

An Empirical Study of Counterfactual Self-Explanations in LLMs

This work evaluates ten instruction-tuned models from the LLaMA-3 and Qwen-2.5 families, measuring faithfulness, minimality, and alignment with human-annotated rationales and shows that model scale is the strongest determinant of explanation quality.

Giannis Kalyvas, Giorgos Filandrianos, Orfeas Menis-Mastromichalakis et al. · 0 citations

Last Translation Benchmark

For scientific progress, we need benchmarks that test the limits of state-of-the-art models, and evaluation methods that inform us about failure cases. As models get stronger, standard benchmarks for machine translation are approaching saturation. Further, automatic translation metrics are unreliable, opaque, and vulne...

Vilém Zouhar, Niyati Bafna, Mukund Choudhary et al. · 0 citations

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