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Ge Liu

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#natural language process... Preprint Sep 2026

UBTree: Parallel Tree Drafting via Unigram and Bigram Models for Speculative Decoding

Speculative decoding accelerates language model inference by verifying multiple draft tokens in a single target-model pass. Recent parallel drafters have achieved breakthrough performance in frontier production models, but their effectiveness deteriorates as the entropy of target distributions increases due to insuffic...

Chumeng Liang, Lin-Xuan Wang, Xin-Yu Peng et al. · 0 citations
Book Jul 2026

SMART: LLM-Augmented Hybrid Retrieval for Dynamic Product Ads

A lightweight quality gate identifies coverage gaps in initial keyword results, adaptively routing only the ∼ 10% of users who benefit from semantic prospecting to the LLM path, and captures the bulk of semantic prospecting gains in Relevance Score while maintaining competitive retargeting performance at a 90% reductio...

Cong-Fei Zhang, J. Ma, Xiao-Dong Liu et al. · 0 citations
Jul 2026

TSRouter: Dynamic Modality-Model Selection for Time Series Reasoning

TSRouter, a graph-based dynamic routing framework that demonstrates robust zero-shot plug-and-play generalization to unseen models and novel tasks and preserves high performance while reducing computational overhead through cost-aware optimization.

Fangxu Yu, Tao Feng, De-Hai Min et al. · 3 citations
Preprint Aug 2026

LLMRouter: Unified Infrastructure for Developing, Evaluating, and Deploying LLM Routers

This work presents a unified formulation of LLM routing as a sequential decision process characterized by five components: context encoders, model encoders, scoring functions, decision rules, and learning signals, covering single-turn, multi-turn, and personalized routing.

Tao Feng, Fangxu Yu, Haozhen Zhang et al. · 1 citation

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