arXiv Machine Learning By Chunyi Hou, Xiangfei Qiu, Hanyin Cheng, Yutong Li, Bin Yang

HALO: Enhancing Time Series Generation via Hyperspherical Latents and Masked AutoregRessive Modeling

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HALO introduces a hyperspherical VAE to constrain continuous latent representations to a fixed‑radius shell, stabilizing numerical fluctuations. It then employs a masked autoregressive model that balances parallel decoding with temporal correlation learning, reducing inference steps and improving stability. Experiments show HALO achieves state‑of‑the‑art generation performance with significantly better inference efficiency compared to existing baselines.

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arXiv Machine Learning
2d ago

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