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README.md

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 license: apache-2.0
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+The model checkpoint trained using https://github.com/AlexKoff88/mobilenetv2_food101.
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+The main intend is to use it in samples and demos for model optimization. Here is the advantages:
+- FOOD101 can automatically downloaded without registration and SMS.
+- It is quite representative to reflect the real world scenarios.
+- MobileNet v2 is easy to train and lightweight model which is also representative and used in many public benchmarks.