If you want to deploy your TensorFlow model to a mobile or embedded device, a large model may take too long to download and use too much RAM and CPU, all of which will make your app unresponsive, heat the device and drain its battery. To avoid this, you need to make a mobile-friendly. Lightweight, and efficient model, without sacrificing too much of its accuracy.
Before Deploying a TensorFlow model to a mobile, I suggest you to learn how to Deploy a machine learning model to a Web Application. This will help to to understand things better before getting into to deploy a TensorFlow model to a Mobile or embedded Device.
The file library provides several tools to help you deploy your TensorFlow model to a mobile and embedded devices, with three main objectives:
- Reduce the model size to shorten download time and reduce RAM usage.
- Reduce the number of computations needed for each prediction to minimize latency, battery usage, and heating.
- Adapt the model to device-specific constraints.
Train and Deploy a TensorFlow Model to a Mobile
While you Deploy a Machine Learning Model, you need to reduce the model size, TFLite’s model converter can take a saved model and compress it to a much lighter format based on FlatBuffers. This is a dynamic, cross-platform serialization library initially created by Google without any preprocessing: this reduces the loading time and memory footprint.
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Once the model is loaded into a mobile or embedded device, the TFLite interpreter will execute it to make predictions.
Here_ is how you can convert a saved model to a FlatBuffer and save it to a .tflite file._
How Does it work to Deploy a TensorFlow Model to Mobile
While you Deploy a TensorFlow model to a mobile, the converter optimizes the model, both to shrink it and to reduce its latency. It prunes all the operations that are not needed to make predictions ( such as training operations), and it optimizes computations whenever possible; for example, 3a + 4a +5*a will be converted to (3+4+5)*a. It also tries to fuse operations whenever possible.
For example, Batch Normalization layers end up folded into pervious layer’s addition and multiplication operations, whenever possible. To get a good idea of how much TFLite can optimize a model, download one of the pretrained TFLite models_,_ unzip the archive, then open the excellent Netron graph visualization tooland upload the.pb file to view the original model. It’s a big, elaborate graph. Next, open the optimized. Tflite model marvel at its beauty.
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