Saliency-Aware Quantized Imitation Learning for Efficient Robotic Control
On the map: Vision-language-action models → Efficient VLA inference and adaptation
Abstract (arXiv)
Deep neural network (DNN)-based policy models, such as vision-language-action (VLA) models, excel at automating complex decision-making from multi-modal inputs. However, scaling these models greatly increases computational overhead, complicating deployment in resource-constrained settings like robot manipulation and autonomous driving. To address this, we propose Saliency-Aware Quantized Imitation Learning (SQIL), which combines quantization-aware training with a selective loss-weighting strategy for mission-critical states. By identifying these states via saliency scores and emphasizing them in the training loss, SQIL preserves decision fidelity under low-bit precision. We validate SQIL's generalization capability across extensive simulation benchmarks with environment variations, real-world tasks, and cross-domain tasks (self-driving, physics simulation), consistently recovering full-precision performance. Notably, a 4-bit weight-quantized VLA model for robotic manipulation achieves up to 2.5x speedup and 2.5x energy savings on an edge GPU with minimal accuracy loss. These results underline SQIL's potential for efficiently deploying large IL-based policy models on resource-limited devices.
Key facts. Cited by 12 papers in the map (data through 14 Oct 2026). Placed in Efficient VLA inference and adaptation, one of 13 directions in Vision-language-action models. Builds on 44 of its 60 references that are in the map. First posted on arXiv 21 May 2025.
Builds on
44 of 60 references.
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32 more
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Built on by
Citing papers per year: 2025: 1; 2026: 11.
12 papers.
- 2025A Survey on Efficient Vision-Language-Action Modelscited by 34
- 2026FASTER: Rethinking Real-Time Flow VLAscited by 21
- 2026HBVLA: Pushing 1-Bit Post-Training Quantization for Vision-Language-Action Modelscited by 2
- 2026Revisiting Parameter Redundancy in Vision-Language-Action Models: Insights from VLM-to-VLA Adaptationcited by 2
- 2026QuantWAMs: Calibrating at the Right Granularity for World Action Modelscited by 2
- 2026Device-Conditioned Neural Architecture Search for Efficient Robotic Manipulationcited by 0
- 2026APEX-RBD: Mixed-Precision Exploration Framework for Hardware-Efficient Robot Dynamics Accelerator Designcited by 0
- 2026Efficient Vision-Language-Action Management and Serving for Robot Factoriescited by 0
- 2026Predict Before You Deploy: Offline Prediction of Quantization-Induced Task Degradation for World Action Modelscited by 0
- 2026ActTune: Action-Aware Precision and GPU Operating-Point Adaptation for Energy-Efficient Vision-Language-Action Inferencecited by 0
- 2026Lamarck's Driving School: Discovering Autonomous Driving Training Strategies through Evolutionary Competitioncited by 0
- 2026Recovering Low-Bit Failures in Vision-Language-Action Policies via Quantization-Conditioned Reinforcement Learningcited by 0
- 2026Recovering Low-Bit Failures in Vision-Language-Action Policies via Quantization-Conditioned Reinforcement Learning11 Oct 2026
- 2026Lamarck's Driving School: Discovering Autonomous Driving Training Strategies through Evolutionary Competition8 Oct 2026
- 2026ActTune: Action-Aware Precision and GPU Operating-Point Adaptation for Energy-Efficient Vision-Language-Action Inference6 Oct 2026
- 2026Predict Before You Deploy: Offline Prediction of Quantization-Induced Task Degradation for World Action Models16 Sep 2026
- 2026Efficient Vision-Language-Action Management and Serving for Robot Factories10 Sep 2026
- 2026APEX-RBD: Mixed-Precision Exploration Framework for Hardware-Efficient Robot Dynamics Accelerator Design4 Sep 2026
- 2026QuantWAMs: Calibrating at the Right Granularity for World Action Models30 Jul 2026
- 2026Revisiting Parameter Redundancy in Vision-Language-Action Models: Insights from VLM-to-VLA Adaptation30 Jun 2026
- 2026Device-Conditioned Neural Architecture Search for Efficient Robotic Manipulation11 Apr 2026
- 2026FASTER: Rethinking Real-Time Flow VLAs19 Mar 2026
- 2026HBVLA: Pushing 1-Bit Post-Training Quantization for Vision-Language-Action Models14 Feb 2026
- 2025A Survey on Efficient Vision-Language-Action Models27 Oct 2025
Similar, not cited
Close in wording, no citation either way
- 2024Quantization-Aware Imitation-Learning for Resource-Efficient Robotic Control
- 2026QVLA: Not All Channels Are Equal in Vision-Language-Action Model's Quantization
- 2025SRPO: Self-Referential Policy Optimization for Vision-Language-Action Models
- 2024ViSaRL: Visual Reinforcement Learning Guided by Human Saliency
- 2025Large VLM-based Vision-Language-Action Models for Robotic Manipulation: A Survey
- 2026AtomVLA: Scalable Post-Training for Robotic Manipulation via Predictive Latent World Models
- 2025From Code to Action: Hierarchical Learning of Diffusion-VLM Policies
- 2026ARP: Enhancing Quantized Skill Abstractions via Visual Alignment and Iterative Refinement for Robotic Manipulation ↗