论文

JudgeCast: 基于经验判断的时间序列预测框架

JudgeCast: Time Series Forecasting with Experience-Informed Covariate Judgements

精选理由

JudgeCast用TSFM+LLM组合做预测,通过协变量判断和经验验证提升准确性,比传统方法更可靠。

JudgeCast 是一个基于经验的时间序列预测框架,结合了冻结的TSFM提供基础预测和冻结的LLM根据当前上下文调整预测。

正文

该框架首先形成显式的协变量判断,然后确定调整数值。在观察后,JudgeCast使用基础预测的残差重构替代判断,并通过评估选择最佳决策作为后续预测的经验验证。

在多个真实世界数据集上,JudgeCast表现优于强基线模型。

原文 · arXiv cs.AI

JudgeCast: Time Series Forecasting with Experience-Informed Covariate Judgements

Covariate effects vary across contexts and shift over time, requiring forecasters to assess how to use them for each forecasting context. As forecasting proceeds, observations for earlier forecasts become available, providing feedback on past covariate use for subsequent forecasts. However, when multiple covariates act together, the forecast error reveals the numerical discrepancy from the observation but not how the covariates should have been used. We introduce JudgeCast, an experience-based framework for time series forecasting with covariates. Following the judgmental adjustment practice, a frozen TSFM provides the base forecast, while a frozen LLM uses the current context and relevant experience to adjust it. Within the adjustment, assessing covariate effects and determining the numerical adjustment serve distinct roles, so JudgeCast first forms explicit covariate-wise judgments and then determines the adjustment. After observation, JudgeCast uses the observed residual of the base forecast to reconstruct alternative judgments and evaluates the original and alternatives through their resulting adjustments. The best-performing decision is selected and retained as validated experience for subsequent forecasts. Across diverse real-world datasets, JudgeCast outperforms strong baselines. Ablations show that explicit covariate-wise judgment can improve forecast-time adjustment, while residual-guided experience construction yields more reliable forecasting gains than retaining raw decisions as experience.

产业坐标与信源核验

本条情报归属 AITOP「论文」核心栏目,重点聚焦北美前沿实验室与硅谷科技巨头。在跨区域产业观察坐标中,该动态直接关联「AI 开发者工具链、Coding Agent 与工程化实践」研究主线,反映出当前技术演进与商业落地的最新风向。涉及核心实体与技术议题包括:JudgeCast、时间序列预测、TSFM、LLM,读者可通过下方标签进入对应专题页查阅历史脉络与关联对比。

信源核验说明:本文原始线索采编自「arXiv cs.AI」(@Donguk Kwon, Wooseok Jeong, Dongha Lee),经 AITOP 多维评分管线结构化提炼。