分析3750万次Copilot对话，发现使用场景随时间与设备显著分化。
It's About Time: The Temporal and Modal Dynamics of Copilot Usage
- 按设备和时段划分使用模式：手机端以健康为主，桌面端工作类话题占优。
- 编程高峰在工作日，游戏与情感话题集中在周末及特定节日。
- 揭示AI已深度融入生活节奏，兼具办公助手与夜间陪伴双重角色。
我们分析了2025年1月至9月期间微软Copilot的3750万次去标识化对话。不同于以往对AI使用行为的单一分析，本文关注用户如何、何时使用AI。研究发现，使用方式高度依赖上下文与设备类型。移动端以健康话题为主导，且全天候保持一致；桌面端则在工作时间内以“工作与职业”超越“技术”成为首要主题。时间规律上，编程查询集中于工作日，游戏需求上升至周末，哲学类提问多见于深夜，情人节期间情感类对话激增。这些模式表明，用户已将AI无缝嵌入日常生活，既作为办公助手，也作为移动设备上的情感伙伴。
原文摘要 · Abstract (English)
We analyze 37.5 million deidentified conversations with Microsoft's Copilot between January and September 2025. Unlike prior analyses of AI usage, we focus not just on what people do with AI, but on how and when they do it. We find that how people use AI depends fundamentally on context and device type. On mobile, health is the dominant topic, which is consistent across every hour and every month we observed - with users seeking not just information but also advice. On desktop, the pattern is strikingly different: work and technology dominate during business hours, with "Work and Career" overtaking "Technology" as the top topic precisely between 8 a.m. and 5 p.m. These differences extend to temporal rhythms: programming queries spike on weekdays while gaming rises on weekends, philosophical questions climb during late-night hours, and relationship conversations surge on Valentine's Day. These patterns suggest that users have rapidly integrated AI into the full texture of their lives, as a work aid at their desks and a companion on their phones.
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