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Ruobing Xie

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#natural language process... Preprint Sep 2026

Efficient Reasoning Exploration via State-Conditioned Latent Steering with Progress Guidance

SPS is a training-free latent steering framework that constructs a state-conditioned Direction Bank containing multiple progress-guided steering vectors for different prefix-state regions and applies it at high-uncertainty transitions to guide the next reasoning step toward meaningful progress.

Hengyuan Zhang, Chenming Shang, Zun-Hai Su et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Higher-Dimensional Rotary Position Embedding

HDR-RoPE is proposed, which extends RoPE from independent 2D rotations to higher-dimensional rotations and introduces a Paley-I orthogonal basis to obtain balanced, isotropic, and dense phase mixing within each rotation subspace and significantly enhances channel coupling and rotational degrees of freedom while maintai...

Yixing Li, Ruo-Bing Xie, Yu-Dong Zhang et al. · 0 citations
Jul 2026

AngelSpec: Towards Real-World High Performance Inference with Speculative Decoding

DFly is proposed, a block-diffusion framework combining a hybrid target-conditioning backbone with a predecessor-conditioned autoregressive head, improving target-feature utilization and intra-block dependency modeling while keeping generation parallel, and DFly treats verification as a shared batch-level resource.

Hong Liu, Rui Cen, Jun-Han Shi et al. · 2 citations

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