Author

Jun Wei

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Preprint Sep 2026

HitMem: Hierarchical Temporal 3D Memory with Multi-Modal Context-Aware Retrieval for Dynamic Environments

Executing long-term tasks in dynamic environments requires embodied agents to maintain robust and adaptive 3D scene representations. However, most existing 3D memory frameworks rely on static world assumptions. When objects are displaced by human activities or unobserved events, agents encounter memory-observation conf...

Rui-Jie Tang, Chenxi Zou, Guo-Quan Wu et al. · 0 citations

Jul 2026

Prox: Training-Free FFN Activation Sparsity via Approximate Intermediate-Channel Salience in LLMs

Prox is a two-stage training-free framework for sparse SwiGLU FFNs that outperforms training-free baselines at all sparsity levels, achieves up to a $1.99\times end-to-end decoding speedup at 70\% FFN sparsity, and is compatible with quantization and sparse attention.

Jinyi Liu, Wei Chen, Pengyu Chen et al. · arXiv.org · 0 citations