Deploying a Model as a Service

Deploying a Model as a Service

You can deploy a model as a real-time service that provides a real-time test UI and monitoring capabilities. After the model is trained, you can deploy a Completed version with ideal accuracy as a service. The procedure is as follows:

1. On the Train Model tab page, wait until the training status changes to Completed. Click Deploy in the Version Manager pane to deploy the model as a real-time service.
   Figure 1 Deploy
   
2. In the Deploy dialog box, select resource flavor, set the Auto Stop function, and click OK to start the deployment.
   • Specifications: The GPU specifications are better, and the CPU specifications are more cost-effective.
   • Compute Nodes: The default value is 1 and cannot be changed.
   • Auto Stop: After this function is enabled and the auto stop time is set, a service automatically stops at the specified time. If this parameter is disabled, a real-time service keeps running and billing. The function can help you avoid unnecessary billing. The auto stop function is enabled by default, and the default value is 1 hour later.

   The options are 1 hour later, 2 hours later, 4 hours later, 6 hours later, and Custom. If you select Custom, enter any integer from 1 to 24 in the text box on the right.

   Figure 2 Deploying a model
   
3. After the model deployment is started, view the deployment status on the Service Deployment page.

   It takes a certain period of time to deploy a model. When the status in the Version Manager pane changes from Deploying to Running, the deployment is complete.

   

   On the ExeML page, trained models can only be deployed as real-time services. For details about how to deploy them as batch services or edge services, see Where Are Models Generated by ExeML Stored? What Other Operations Are Supported?

Testing a Service

• On the Service Deployment page, select a service type. For example, on the ExeML page, the text classification model is deployed as a real-time service by default. On the Real-Time Services page, click Prediction in the Operation column of the target service to perform a service test. For details, see Testing the Deployed Service.
• You can also use code to test a service. For details, see Accessing Real-Time Services.
• The following describes the procedure for performing a service test after the text classification model is deployed as a service on the ExeML page.
  1. After the model is deployed, you can add a text file for test. On the ExeML page, click the target project, go to the Deploy Service tab page, select the service version in the Running status, and enter text to be tested in the text box in the Service Test area.
  2. Click Predict to perform the test. After the prediction is complete, the result is displayed in the Test Result pane on the right. If the model accuracy does not meet your expectation, add text data files on the Label Data tab page, label the files, and train and deploy the model again. Table 1 describes the parameters in the prediction result. If you are satisfied with the model prediction result, call the API to access the real-time service as prompted. For details, see Accessing Real-Time Services.
     Figure 3 Prediction
     

     Table 1 Parameters in the prediction result

     Parameter	Description
     predicted_label	Prediction type of the text
     score	Confidence score for the predicated class

     

     A running real-time service keeps consuming resources. If you do not need to use the real-time service, click Stop in the Version Manager pane to stop the service so that charges will no longer be incurred. If you want to use the service again, click Start.

     If you enable the auto stop function, the service automatically stops after the specified time and no fee is generated.