DL4J 实战之一：准备，工业互联网架构师

<dl4j-master.version>1.0.0-beta7</dl4j-master.version>

<nd4j.backend>nd4j-native</nd4j.backend>

<java.version>1.8</java.version>

<maven-compiler-plugin.version>3.6.1</maven-compiler-plugin.version>

<maven.minimum.version>3.3.1</maven.minimum.version>

<exec-maven-plugin.version>1.4.0</exec-maven-plugin.version>

<maven-shade-plugin.version>2.4.3</maven-shade-plugin.version>

<jcommon.version>1.0.23</jcommon.version>

<jfreechart.version>1.0.13</jfreechart.version>

<logback.version>1.1.7</logback.version>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

</properties>

<dependencyManagement>

<dependencies>

<dependency>

<groupId>org.freemarker</groupId>

<artifactId>freemarker</artifactId>

<version>2.3.29</version>

</dependency>

<dependency>

<groupId>io.netty</groupId>

<artifactId>netty-common</artifactId>

<version>4.1.48.Final</version>

</dependency>

<dependency>

<groupId>org.nd4j</groupId>

<artifactId>${nd4j.backend}</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.datavec</groupId>

<artifactId>datavec-api</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.datavec</groupId>

<artifactId>datavec-data-image</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.datavec</groupId>

<artifactId>datavec-local</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.deeplearning4j</groupId>

<artifactId>deeplearning4j-datasets</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.deeplearning4j</groupId>

<artifactId>deeplearning4j-core</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.deeplearning4j</groupId>

<artifactId>deeplearning4j-ui</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.deeplearning4j</groupId>

<artifactId>deeplearning4j-zoo</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.deeplearning4j</groupId>

<artifactId>deeplearning4j-parallel-wrapper</artifactId>

<version>${dl4j

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-master.version}</version>

</dependency>

<dependency>

<groupId>jfree</groupId>

<artifactId>jfreechart</artifactId>

<version>${jfreechart.version}</version>

</dependency>

<dependency>

<groupId>org.jfree</groupId>

<artifactId>jcommon</artifactId>

<version>${jcommon.version}</version>

</dependency>

<dependency>

<groupId>org.apache.httpcomponents</groupId>

<artifactId>httpclient</artifactId>

<version>4.3.5</version>

</dependency>

<dependency>

<groupId>ch.qos.logback</groupId>

<artifactId>logback-classic</artifactId>

<version>${logback.version}</version>

</dependency>

<dependency>

<groupId>org.datavec</groupId>

<artifactId>datavec-data-codec</artifactId>

<version>${dl4j-master.version}</version>

</dependency>

<dependency>

<groupId>org.bytedeco</groupId>

<artifactId>javacv-platform</artifactId>

<version>1.5.2</version>

</dependency>

<dependency>

<groupId>org.projectlombok</groupId>

<artifactId>lombok</artifactId>

<version>1.16.16</version>

</dependency>

</dependencies>

</dependencyManagement>

</project>

子工程 commons

• 后面的实战中，我们常用到下载文件、绘图等功能，因此新增一个子工程，将下载绘图等功能对应的工具类都在这里面给其他工程使用

• 在 dl4j-tutorials 下新增名为 commons 的子工程，其 pom.xml 内容如下：

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

<parent>

<artifactId>dlfj-tutorials</artifactId>

<groupId>com.bolingcavalry</groupId>

<version>1.0-SNAPSHOT</version>

</parent>

<modelVersion>4.0.0</modelVersion>

<artifactId>commons</artifactId>

<dependencies>

<dependency>

<groupId>org.datavec</groupId>

<artifactId>datavec-api</artifactId>

</dependency>

<dependency>

<groupId>org.apache.httpcomponents</groupId>

<artifactId>httpclient</artifactId>

</dependency>

<dependency>

<groupId>org.deeplearning4j</groupId>

<artifactId>deeplearning4j-core</artifactId>

</dependency>

<dependency>

<groupId>jfree</groupId>

<artifactId>jfreechart</artifactId>

</dependency>

</dependencies>

</project>

• 目前 commons 子工程中有四个类，并非欣宸原创，而是来自 DL4J 的官方 demo，其功能简介如下：

1. DataUtilities：下载和解压指定地址对应的文件

2. DownloaderUtility：DL4J 为我们准备了丰富的数据集(例如 150 个鸢尾花数据，带标签)，这些内容保存在云端(AZURE)，通过 DownloaderUtility 可以很方便的下载和解压这些数据集

3. PlotUtil：绘制二维图形

4. VAEPlotUtil：绘制变分自编码图形

• 上述四个类在工程中的位置如下图所示，限于篇幅就不贴出代码了，有需要的话请在 github 上获取：

• 至此，准备工作就完成了，接下来的旅程会异常精彩，欣宸感谢您的一路相伴！

你不孤单，欣宸原创一路相伴