论文前沿时序知识图谱扩散模型外推频谱校准FreqDiff1A 学习等级

[论文] Denoising the Future: Context-Aware Spectral Diffusion for Temporal Knowledge Graph Extrapolation

来源:arXiv AI 论文收录:2026/8/24

✦ AI 解读

本文提出FreqDiff,一种面向时序知识图谱外推的频率感知扩散框架。针对现有扩散方法在条件聚合时难以区分查询特定证据与非显著历史事实的问题,FreqDiff将未来对象预测建模为查询槽去噪,并设计双流去噪器,结合时序依赖建模与上下文感知频谱校准,自适应合成历史条件滤波器,以增强目标判别信号,提升外推准确性。

Temporal Knowledge Graph (TKG) extrapolation seeks to infer future facts from time-varying relational histories. Recent diffusion-based approaches improve uncertainty modeling through generative denoising, but their aggregated conditioning on subject histories may insufficiently distinguish query-specific evidence from non-salient historical facts, thereby diluting target-discriminative signals. To bridge this gap, we propose FreqDiff, a Frequency-aware Diffusion framework for TKG extrapolation. Specifically, FreqDiff formulates future object prediction as query-slot denoising and develops a dual-stream denoiser that integrates temporal dependency modeling with context-aware spectral calibration. The spectral branch synthesizes history-conditioned filters from learnable bases to adaptively
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