ExamGecko
Question list
Search
Search

List of questions

Search

Related questions











Question 128 - Professional Machine Learning Engineer discussion

Report
Export

You are an ML engineer at a mobile gaming company. A data scientist on your team recently trained a TensorFlow model, and you are responsible for deploying this model into a mobile application. You discover that the inference latency of the current model doesn't meet production requirements. You need to reduce the inference time by 50%, and you are willing to accept a small decrease in model accuracy in order to reach the latency requirement. Without training a new model, which model optimization technique for reducing latency should you try first?

A.
Weight pruning
Answers
A.
Weight pruning
B.
Dynamic range quantization
Answers
B.
Dynamic range quantization
C.
Model distillation
Answers
C.
Model distillation
D.
Dimensionality reduction
Answers
D.
Dimensionality reduction
Suggested answer: B

Explanation:

Dynamic range quantization is a model optimization technique for reducing latency that reduces the numerical precision of the weights and activations of models. This technique can reduce the model size, memory usage, and inference time by up to 4x with negligible accuracy loss. Dynamic range quantization can be applied to a trained TensorFlow model without retraining, and it is suitable for mobile applications that require low latency and power consumption.

Weight pruning, model distillation, and dimensionality reduction are also model optimization techniques for reducing latency, but they have some limitations or drawbacks compared to dynamic range quantization:

Weight pruning works by removing parameters within a model that have only a minor impact on its predictions. Pruned models are the same size on disk, and have the same runtime latency, but can be compressed more effectively. This makes pruning a useful technique for reducing model download size, but not for reducing inference time.

Model distillation works by training a smaller and simpler model (student) to mimic the behavior of a larger and complex model (teacher). Distilled models can have lower latency and memory usage than the original models, but they require retraining and may not preserve the accuracy of the teacher model.

Dimensionality reduction works by reducing the number of features or dimensions in the input data or the model layers. Dimensionality reduction can improve the computational efficiency and generalization ability of models, but it may also lose some information or introduce noise in the data or the model. Dimensionality reduction also requires retraining or modifying the model architecture.

[TensorFlow Model Optimization]

[TensorFlow Model Optimization Toolkit --- Post-Training Integer Quantization]

[Model optimization methods to cut latency, adapt to new data]

asked 18/09/2024
Matthew Sain
39 questions
User
Your answer:
0 comments
Sorted by

Leave a comment first