arXiv Machine Learning By Bishmoy Paul, Youngmin Yi, Hoeseok Yang

Sensitivity-Aware Thresholding and Token Routing for Activation Sparsification in Large Language Models

Read the original on arXiv Machine Learning →

arXiv:2607. 08991v1 Announce Type: new Abstract: Efficient inference in Large Language Models (LLMs) requires deciding where computation can be reduced while preserving model quality.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv Machine Learning.

arXiv AI
2d ago

TopK-Guided: Adaptive, Budget-Aware Activation Sparsity for Efficient LLM Inference

TopK-Guided is a training‑free method that improves activation sparsity for large language model inference by combining token‑level sparsity adaptation with block‑level budget allocation that accounts for block sensitivity. It addresses limitations of existing methods like TEAL, which adapts sparsity per token but lacks tight control, and WINA, which enforces a fixed sparsity across all tokens and blocks. Experiments on Llama‑2 and Llama‑3 show that TopK‑Guided consistently yields better perplexity and downstream accuracy while maintaining similar compute costs to WINA, especially at high sparsity levels.

By Mukund Agarwalla, Chih-Jen Lin
arXiv Machine Learning
Aug 27

Ban&Pick: Enhancing Performance and Efficiency of MoE-LLMs via Smarter Routing

The paper introduces Ban&Pick, a post‑training, plug‑and‑play routing strategy for Sparse Mixture‑of‑Experts large language models. It identifies and reinforces a small group of highly influential experts while dynamically pruning redundant ones, leading to accuracy gains across math, code, and reasoning benchmarks. Experiments on DeepSeek and Qwen3 show notable performance improvements and a 1.25× inference speedup without retraining or architectural changes.

By Yuanteng Chen, Peisong Wang, Yuantian Shao, Nanxin Zeng, Chang Xu, Jian Cheng