做时间序列预测的团队终于有了一个能理解「为什么涨跌」的框架,Nexus 把事件和数字结合,效果显著。做量化、经济预测或房地产分析的建议点开论文看看。
Google 提出 Nexus 框架,将时间序列预测从纯数值模式匹配转向事件驱动的推理问题。Nexus 通过多个智能体分别处理历史文本事件、宏观环境、局部冲击,并由合成器校准,让模型理解数字背后的原因。在 Zillow 房价测试中,基于 Claude 的版本相比直接思维链提示,平均绝对百分比误差(MAPE)降低 86.6%。虽然目前仅在有限数据集上验证,但方向明确:未来的预测不仅要外推曲线,还要解释曲线为何移动。
源:https://t.co/iyJDqGHORm
源: x.com/rohanpaul_ai/s… Rohan Paul @rohanpaul_ai New Google paper: A forecast needs context, not just history. Some patterns are caused by events, not time. Nexus reframes forecasting as a reasoning problem, where events and numbers have to explain each other. Nexus argues that forecasting improves when models read the world around the numbers, not just the numbers themselves. In the Zillow tests, one Claude-based version cut average MAPE by 86.6% versus direct chain-of-thought prompting. That matters because most time series models are fluent in pattern, but mute about cause. A housing inventory curve can reflect seasonality, mortgage pressure, migration, layoffs, and local supply, while a stock price can be bent by earnings, regulation, hype, and fear. Nexus separates those jobs instead of asking one prompt to do everything. One agent turns messy historical text into a clean event timeline, one reads the broad regime, another tracks local shocks, and a synthesizer reconciles them with calibration from past errors. The interesting result is not merely that context helps, but that structure helps the language model use context without losing the time series. The evidence is still narrow: Zillow counts, seven equities, post-cutoff data, and single-run evaluations, so this is not a universal law of forecasting. But the direction is clear: future forecasters will not only extrapolate curves; they will argue about what made the curve move. ---- Paper Link – arxiv. org/abs/2605.14389 Paper Title: "Nexus : An Agentic Framework for Time Series Forecasting" 🔗 View Quoted Tweet 💬 0 🔄 0 ❤️ 0 👀 314 ⚡