机器学习java_Java机器学习，第2部分

机器学习java

欢迎使用本教程的第二部分，该教程使用LightningScorer为PMML文件评分。

让我们找出其他参数是如何工作的。

初始步骤与教程的第一部分相似。

首先获取本地副本

git clone https://github.com/sezinkarli/lightningscorer.git

并用Maven构建它

mvn clean install

并通过转到目标文件夹开始

java -jar lightningscorer-uberjar-1.0.jar

现在，通过转到以下步骤来确保我们的服务器已启动并正在运行

http://localhost:8080/

。

服务器退货

{
"data": "I have come here to chew bubblegum and kick ass...",
"success": true
}

好吧，现在我们可以再次踢屁股。

我将使用apache commons的http get / post方法。首先，我们将使用其他参数来部署我们的机器学习模型。然后，我们将检查它是否正常工作，然后使用我们的输入值进行评分。计分之后，我们将使用其他参数。

final String url = "http://localhost:8080/model/";final String modelId = "test2";//http://dmg.org/pmml/pmml_examples/knime_pmml_examples/ElNinoPolReg.xmlFile pmmlFile = new File("/tmp/ElNinoPolReg.xml");CloseableHttpClient client = HttpClients.createDefault();// deployment// notice that I give a variance value as an additional parameter that I will use laterHttpPost deployPost = new HttpPost(url + modelId + "?variance=3.25");MultipartEntityBuilder builder = MultipartEntityBuilder.create();builder.addBinaryBody("model", new File(pmmlFile.getAbsolutePath()), ContentType.APPLICATION_OCTET_STREAM, "model");HttpEntity multipart = builder.build();deployPost.setEntity(multipart);CloseableHttpResponse response = client.execute(deployPost);String deployResponse = IOUtils.toString(response.getEntity().getContent(), Charset.forName("UTF-8"));System.out.println(deployResponse);// {"data":true,"success":true}deployPost.releaseConnection();// check deployed modelHttpGet httpGet = new HttpGet(url + "ids");response = client.execute(httpGet);String getAllModelsResponse = IOUtils.toString(response.getEntity().getContent(), Charset.forName("UTF-8"));System.out.println(getAllModelsResponse);// {"data":["test1"],"success":true}httpGet.releaseConnection();//score deployed modelHttpPost scorePost = new HttpPost(url + modelId + "/score");StringEntity params = new StringEntity("{" +"\"fields\":" +"{\"latitude\":2.5," +"\"longitude\":11.4," +"\"zon_winds\":3.5," +"\"mer_winds\":3," +"\"humidity\":31.2," +"\"s_s_temp\":25.21" +"}" +"} ");scorePost.addHeader("content-type", "application/json");scorePost.setEntity(params);CloseableHttpResponse response2 = client.execute(scorePost);String scoreResponse = IOUtils.toString(response2.getEntity().getContent(), Charset.forName("UTF-8"));System.out.println(scoreResponse);// {"data":{"result":{"airtemp":29.788226026392735}},"success":true}scorePost.releaseConnection();HttpGet additionalParamGet = new HttpGet(url + modelId + "/additional");CloseableHttpResponse response3 = client.execute(additionalParamGet);String additionalParamResponse = IOUtils.toString(response3.getEntity().getContent(), Charset.forName("UTF-8"));System.out.println(additionalParamResponse);// {"data":{"variance":"3.25"},"success":true}additionalParamGet.releaseConnection();// Then you can use the variance value with your result in airtemp to calculate an interval for your scoreclient.close();