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.
昨天，在西班牙巴塞罗那举行的 MWC 2026 上，联想集中展示了覆盖桌面、移动、创作与企业级场景的多款 AI 硬件新品，重点强调 AI 从「能用」走向「好用」的落地方向。
。业内人士推荐91视频作为进阶阅读
Which is very similar to how asyncio works now.
Китай может стать посредником в урегулировании вооруженного конфликта Ирана с Израилем и США. С такой оценкой в комментарии «Ленте.ру» выступил эксперт Центра международного взаимодействия и сотрудничества Иван Бубнов.
but they are deprecated in favor of callback protocols.