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Abstract:Humans shift between different personas depending on social context. Large Language Models (LLMs) demonstrate a similar flexibility in adopting different personas and behaviors. Existing approaches, however, typically adapt such behavior through external knowledge such as prompting, retrieval-augmented generation (RAG), or fine-tuning. We ask: do LLMs really need external context or parameters to adapt to different behaviors, or do they already have such knowledge embedded in their parameters? In this work, we show that LLMs already contain persona-specialized subnetworks in their parameter space. Using small calibration datasets, we identify distinct activation signatures associated with different personas. Guided by these statistics, we develop a masking strategy that isolates lightweight persona subnetworks. Building on the findings, we further discuss: how can we discover opposing subnetwork from the model that lead to binary-opposing personas, such as introvert-extrovert? To further enhance separation in binary opposition scenarios, we introduce a contrastive pruning strategy that identifies parameters responsible for the statistical divergence between opposing personas. Our method is entirely training-free and relies solely on the language model's existing parameter space. Across diverse evaluation settings, the resulting subnetworks exhibit significantly stronger persona alignment than baselines that require external knowledge while being more efficient. Our findings suggest that diverse human-like behaviors are not merely induced in LLMs, but are already embedded in their parameter space, pointing toward a new perspective on controllable and interpretable personalization in large language models.
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Ранее стало известно, что Владимир Зеленский намерен отправить военных ВСУ на Ближний Восток. По его словам, Киев проводит консультации с соседними странами Ирана, Европы и с США. Точное место отправки бойцов ВСУ украинский лидер пока не назвал. Он также отметил, что Украина может передать дроны-перехватчики странам Ближнего Востока в обмен на ракеты PAC-3 (ракеты для систем Patriot). Зеленский подчеркнул, что государство готово поделиться опытом, но не оружием, которое у него в дефиците.。PDF资料对此有专业解读
ITV is in talks with its commercial partners about showing adverts during the mid-half drinks stoppages that will take place in every match at this summer’s World Cup.。关于这个话题，下载安装 谷歌浏览器 开启极速安全的 上网之旅。提供了深入分析
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