Learning Structured Sparsity for Large Models: Bridging Model Compressibility and Efficient Inference

Tianxiang Xia, Kai Lion, Niao He, Michael Muehlebach, Melanie Zeilinger, Hao Ma

Published in arXiv preprint, 2026

Reducing model size does not always accelerate inference, because irregular sparse operations can introduce substantial overhead. We introduce S-SALAAD, which learns low-rank components together with hardware-compatible structured sparsity during training. Budget-aware compression and dedicated CPU and GPU kernels let a single checkpoint serve devices with different memory limits. Experiments on Llama2 and Qwen3, spanning pretraining and distillation, demonstrate improved trade-offs among perplexity, memory consumption, and inference latency relative to the evaluated baselines, supporting efficient deployment of large models on edge devices.