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.
“坚决破除阻碍全国统一大市场建设卡点堵点”“综合整治‘内卷式’竞争”是党的二十届四中全会作出的重要部署。代表委员围绕强化监管执法、压实平台主体责任等方面提出意见建议。邓志勇介绍，市场监管总局围绕依法查处违法行为、支持产业优化升级、完善制度规则等方面，推出多项工作举措破解“内卷式”竞争难题，助力全国统一大市场建设。
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第三十六条 船员用人单位应当依照有关法律、行政法规和中华人民共和国缔结或者参加的有关船员劳动与社会保障国际条约的规定，与船员订立劳动合同。，详情可参考谷歌浏览器【最新下载地址】
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Image by Mat Smith for Engadget。爱思助手下载最新版本是该领域的重要参考