Author

Linqi Song

3 papers indexed here

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#artificial intelligence Preprint Oct 2026

Verify--Backtrack Loop: Structured Precondition Recovery for Long-Horizon Language Agents

Language agents increasingly tackle long-horizon tasks in interactive environments, where actions often depend on latent preconditions. The core difficulty is not trajectory length but recovery: when a prerequisite is missing or an earlier decomposition fails, trying another plausible action rarely helps. ReAct and lat...

Ming-Yang Liu, Qing-Can Kang, Shi-Xiong Kai et al. · 0 citations

Preprint Aug 2026

NormToken: Speaker- and Duration-Normalized Semantic Speech Tokens via Iterative S2U-T2U Refinement

NormToken is an iterative semantic token purification framework that alternates S2U and text-to-unit (T2U) training that demonstrates improved S2U--T2U agreement and parallel-utterance token consistency and reduced dependence on source duration information.

Han-Lin Zhang, Da-Xin Tan, De-Hua Tao et al. · 0 citations

Preprint Aug 2026

Speaker-Normalized Semantic Speech Tokens via Iterative S2U-T2U Refinement

Independently trained de-tokenizers show that the refined S2U and T2U tokens retain sufficient content for high-intelligibility voice conversion and text-to-speech synthesis and exhibit substantially improved cross-speaker consistency and reduced probe-recoverable speaker information.

Hanlin Zhang, Da-Xin Tan, De-Hua Tao et al. · 0 citations