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Target-Language Generation in Multilingual Models: Activation Steering and Optimal Control

2026-09-15 10:40:27
James A. Michaelov, Carmen Amo Alonso, Tyler A. Chang, Roger P. Levy
arXiv_CL
       
Abstract

Ensuring that multilingual language models generate coherent text in a specific target language is a major issue in multilingual language modeling. We develop an optimal control method for target-language text generation as well as a framework for evaluating the quality of generated text in terms of language adherence, linguistic coherence, and semantic coherence. We find that the proposed method performs at least as well as the prominent difference-in-means activation steering method for the majority of models tested, with substantially less hyperparameter tuning required.

Abstract (translated)

URL

https://arxiv.org/abs/2609.16967

PDF

https://arxiv.org/pdf/2609.16967.pdf

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