08版 - 本版责编:钱一彬 王玉琳 苏 滨 李 洋 宋朝军 赵景锋

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Let’s walk through these step by step starting with the most crucial decision: how Sabela uses GHCi sessions to evaluate code.

常见操作如滚动、缩放图片与 PDF 文件,将获得与 iPhone、iPad 类似的流畅触控体验。但苹果不会强化触控打字能力,MacBook Pro 将保持全键盘设计和大触控板体验。

08版新收录的资料对此有专业解读

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.

Our 51 judges have picked Shane Warne, Don Bradman and Ian Botham as their top three. Who gets your vote?,这一点在新收录的资料中也有详细论述

These Beat

The telephoto camera alone is also technically interesting in a few ways. It offers continual optical zoom across the 75-100mm range without in-sensor cropping. This means the lenses physically move to deliver lossless zoom across a range of distances, without jarring leaps between camera sensors and crops. This doesn’t run across the full gamut, but it does roughly cover the 3-4x optical zoom range, which is often used in portrait photography.

17:15, 2 марта 2026Силовые структуры。新收录的资料是该领域的重要参考

关键词:08版These Beat

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关于作者

孙亮,资深行业分析师,长期关注行业前沿动态,擅长深度报道与趋势研判。

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