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Xuan-Fan Ni

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#artificial intelligence Preprint Oct 2026

PW-Pruning: Phase-Aware Expert Selection for Speech-Centric Omni-Modal Models

This work proposes PW-Pruning, a phase-aware extension of DO-ACP that constructs separate importance-weighted kernels for acoustic-prefill and teacher-forced answer tokens, then combines phase-weighted log-determinant marginal gains to select one static expert bank.

Jun-Jie Cao, Feng-Ping Tian, Wen-Jie Zhou et al. · 0 citations
#artificial intelligence Preprint Sep 2026

What Matters for Aggressive Decoding-Time KV Eviction? Temporal Aggregation and Ranking Preservation

Across six open-weight backbones and the LongBench, LongBench-v2, and RULER benchmarks, the results identify temporal aggregation and ranking preservation as distinct, consequential design factors; they do not imply that scoring quality is irrelevant in general.

Bo Zeng, Yu Zhao, Ye-Feng Liu et al. · 0 citations
#natural language process... Preprint Aug 2026

WnW: Waxing-and-Waning KV Cache for Long-Form Speech LLMs

WnW (Waxing-and-Waning KV cache), which classifies KV-heads into anchor, tidal, and fixed roles via offline calibration, and preserves near-Full-Cache accuracy while keeping only 20% of audio tokens on GPU, where prefill-only baselines fail to terminate.

Yi-Ming Yao, Chenyang Lyu, Xuan-Fan Ni et al. · 0 citations

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