Tips for Simplifying ML Models to Avoid Inference Timeout on Arduino Nano 33 BLE Sense
Hi everyone,
Following up on my previous post regarding the "Inference Timeout on Layer 5" error in my vibration anomaly detection project on the Arduino Nano 33 BLE Sense, I’m looking for advice on reducing the model's complexity to avoid these timeouts.
The model was trained using Edge Impulse and includes multiple layers, with Layer 5 being particularly resource-intensive.
The Arduino Nano 33 BLE Sense seems to struggle with the inference at this layer, leading to timeouts.
I have some qst ..
What are the most effective strategies for simplifying a model without significantly compromising accuracy? Should I focus on reducing the number of layers, pruning parameters, or something else?
Are there any specific types of layers or operations that tend to be more efficient on microcontrollers like the Nano 33 BLE Sense?
I’m also open to exploring alternative approaches or model architectures that are better suited for real-time anomaly detection on low-power devices.
Thanks again for the help!
Solution:Jump to solution
Hey @wafa_ath , thanks for the update on your vibration anomaly detection project! Here are some quick tips to tackle that timeout issue:
• Simplify your model: Cut down layers/parameters, especially in Layer 5
• Try quantization: Use 8-bit integers instead of 32-bit floats
• Efficient architectures: Look into depthwise separable convolutions or MobileNet...
2 Replies
Solution
Hey @wafa_ath , thanks for the update on your vibration anomaly detection project! Here are some quick tips to tackle that timeout issue:
• Simplify your model: Cut down layers/parameters, especially in Layer 5
• Try quantization: Use 8-bit integers instead of 32-bit floats
• Efficient architectures: Look into depthwise separable convolutions or MobileNet
• Optimize for hardware: Use any special features of the Nano 33 BLE Sense
• Preprocess data: Reduce input size or extract key features first
• Consider alternatives: Simple statistical methods or autoencoders might work better here
Start with small tweaks and keep an eye on accuracy. Profile your model to find the slowest parts and focus there.
Let me know if you want to dive deeper into any of these! Good luck with your project! 🚀
Thanks for the tips! I'll start with model simplification and quantization !