MobileNetV2

Inverted Residuals and Linear Bottlenecks

Posted by gavin on April 20, 2018

Author of paper: Mark Sandler Andrew Howard Menglong Zhu Andrey Zhmoginov Liang-Chieh Chen Google Inc.

Abstract

In this paper we describe a new mobile architecture, MobileNetV2, that improves the state of the art performance of mobile models.

Introduction

The drive to improve accuracy often comes at a cost: modern state of the art networks require high computational resources beyond the capabilities of many mobile and embedded applications.

This paper introduces a new neural network architecture that is specifically tailored for mobile and resource constrained environments, by significantly decreasing the number of operations and memory needed while retaining the same accuracy.

Preliminaries, discussion and intuition

Depthwise Separable Convolutions

Linear Bottlenecks

MobileNetV1:

MobileNetV2:

Inverted Residual Block

Result