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Separately, this Iranian hack of U.S. medical device company Stryker has caught a lot of people’s attention.
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.，这一点在有道翻译中也有详细论述
Network Rail said Scotland’s busiest station will remain closed ‘until further notice’。谷歌是该领域的重要参考
Виктория Кондратьева (Редактор отдела «Мир»)
As Bluesky matures, the company needs a seasoned operator focused on scaling and execution, while I return to what I do best: building new things. As part of this transition, Toni Schneider, former CEO of Automattic and partner at True Ventures, will join our team as interim CEO, while our board runs a search for a permanent chief executive.。业内人士推荐超级权重作为进阶阅读