الباحثون

Jiaheng Guo

المنشورات 2

نسخة أولية وصول مفتوح

On the Divergence of Accuracy and Mechanism Consistency in Time Series World Models

Haochen Zhang, Jiaheng Guo, Zhen Xu وآخرون · 2026

A time series world model (TSWM) predicts a controlled system's state from its observed history and planned actions and exogenous inputs. Current approaches build forecasters with actions as covariates, trained and evaluated on prediction error under the executed plan. Yet world models compare unexecuted plans, but the …

نسخة أولية وصول مفتوح

No Scale Left Behind: Multi-Scale Autoencoder with Bi-directional Attention for Time Series Anomaly Detection

Jiaheng Guo, Haochen Zhang, Yu-Chao Huang وآخرون · 2026

Time series anomaly detection (TSAD) plays a crucial role in healthcare, finance, industrial monitoring, and other sectors. Within and between these settings, anomalies span vastly different temporal scales, from sub-second point spikes to multi-hour drift patterns. However, most existing TSAD methods commit to a singl …

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