חיזוי למודל שעבר אימון בהתאמה אישית

מקבל חיזוי למודל שעבר אימון בהתאמה אישית באמצעות שיטת החיזוי.

המשך למידה

לקבלת הסבר מפורט שכולל את דוגמת הקוד הזו, קראו את המאמר:

דוגמת קוד

Java

לפני שמנסים את הדוגמה הזו, צריך לפעול לפי Javaהוראות ההגדרה במאמר Vertex AI quickstart using client libraries. מידע נוסף מופיע במאמרי העזרה של Vertex AI Java API.

כדי לבצע אימות ב-Vertex AI, צריך להגדיר את Application Default Credentials. מידע נוסף זמין במאמר הגדרת אימות לסביבת פיתוח מקומית.


import com.google.cloud.aiplatform.v1.EndpointName;
import com.google.cloud.aiplatform.v1.PredictRequest;
import com.google.cloud.aiplatform.v1.PredictResponse;
import com.google.cloud.aiplatform.v1.PredictionServiceClient;
import com.google.cloud.aiplatform.v1.PredictionServiceSettings;
import com.google.protobuf.ListValue;
import com.google.protobuf.Value;
import com.google.protobuf.util.JsonFormat;
import java.io.IOException;
import java.util.List;

public class PredictCustomTrainedModelSample {
  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String instance = "[{ “feature_column_a”: “value”, “feature_column_b”: “value”}]";
    String project = "YOUR_PROJECT_ID";
    String endpointId = "YOUR_ENDPOINT_ID";
    predictCustomTrainedModel(project, endpointId, instance);
  }

  static void predictCustomTrainedModel(String project, String endpointId, String instance)
      throws IOException {
    PredictionServicPredictionServiceSettingsceSettings =
        PredictionServicPredictionServiceSettings          .setEndpoint("us-central1-aiplatform.googleapis.com:443")
            .build();

    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (PredictionServicPredictionServiceClientceClient =
        PredictionServicPredictionServiceClientonServiceSettings)) {
      String location = "us-central1";
      EndpointName endEndpointNameEndpointName.of(EndpointNameation, endpointId);

      ListValue.BuildeListValueue = ListValue.newBuiListValue     JsonFormat.parseJsonFormatinstance, listValue);
      List<Value> instanListValuelistValue.getValuesList();

      PredictRequest pPredictRequest=
          PredictRequest.nPredictRequest            .setEndpoint(endpointName.toSendpointName.toString().addAllInstances(instanceList)
              .build();
      PredictResponse PredictResponse = predictionServiceClient.predict(predictRequest);

      System.out.println("Predict Custom Trained model Response");
      System.out.format("\tDeployed Model Id: %s\n", predictResponse.predictResponse.getDeployedModelId()out.println("Predictions");
      for (Value predictionValueedictResponse.predictResponse.getPredictionsList()em.out.format("\tPrediction: %s\n", prediction);
      }
    }
  }
}

Node.js

לפני שמנסים את הדוגמה הזו, צריך לפעול לפי Node.jsהוראות ההגדרה במאמר Vertex AI quickstart using client libraries. מידע נוסף מופיע במאמרי העזרה של Vertex AI Node.js API.

כדי לבצע אימות ב-Vertex AI, צריך להגדיר את Application Default Credentials. מידע נוסף זמין במאמר הגדרת אימות לסביבת פיתוח מקומית.

/**
 * TODO(developer): Uncomment these variables before running the sample.\
 * (Not necessary if passing values as arguments)
 */

// const filename = "YOUR_PREDICTION_FILE_NAME";
// const endpointId = "YOUR_ENDPOINT_ID";
// const project = 'YOUR_PROJECT_ID';
// const location = 'YOUR_PROJECT_LOCATION';
const util = require('util');
const {readFile} = require('fs');
const readFileAsync = util.promisify(readFile);

// Imports the Google Cloud Prediction Service Client library
const {PredictionServiceClient} = require('@google-cloud/aiplatform');

// Specifies the location of the api endpoint
const clientOptions = {
  apiEndpoint: 'us-central1-aiplatform.googleapis.com',
};

// Instantiates a client
const predictionServiceClient = new PredictionServiceClient(clientOptions);

async function predictCustomTrainedModel() {
  // Configure the parent resource
  const endpoint = `projects/${project}/locations/${location}/endpoints/${endpointId}`;
  const parameters = {
    structValue: {
      fields: {},
    },
  };
  const instanceDict = await readFileAsync(filename, 'utf8');
  const instanceValue = JSON.parse(instanceDict);
  const instance = {
    structValue: {
      fields: {
        Age: {stringValue: instanceValue['Age']},
        Balance: {stringValue: instanceValue['Balance']},
        Campaign: {stringValue: instanceValue['Campaign']},
        Contact: {stringValue: instanceValue['Contact']},
        Day: {stringValue: instanceValue['Day']},
        Default: {stringValue: instanceValue['Default']},
        Deposit: {stringValue: instanceValue['Deposit']},
        Duration: {stringValue: instanceValue['Duration']},
        Housing: {stringValue: instanceValue['Housing']},
        Job: {stringValue: instanceValue['Job']},
        Loan: {stringValue: instanceValue['Loan']},
        MaritalStatus: {stringValue: instanceValue['MaritalStatus']},
        Month: {stringValue: instanceValue['Month']},
        PDays: {stringValue: instanceValue['PDays']},
        POutcome: {stringValue: instanceValue['POutcome']},
        Previous: {stringValue: instanceValue['Previous']},
      },
    },
  };

  const instances = [instance];
  const request = {
    endpoint,
    instances,
    parameters,
  };

  // Predict request
  const [response] = await predictionServiceClient.predict(request);

  console.log('Predict custom trained model response');
  console.log(`\tDeployed model id : ${response.deployedModelId}`);
  const predictions = response.predictions;
  console.log('\tPredictions :');
  for (const prediction of predictions) {
    console.log(`\t\tPrediction : ${JSON.stringify(prediction)}`);
  }
}
predictCustomTrainedModel();

Python

לפני שמנסים את הדוגמה הזו, צריך לפעול לפי Pythonהוראות ההגדרה במאמר Vertex AI quickstart using client libraries. מידע נוסף מופיע במאמרי העזרה של Vertex AI Python API.

כדי לבצע אימות ב-Vertex AI, צריך להגדיר את Application Default Credentials. מידע נוסף זמין במאמר הגדרת אימות לסביבת פיתוח מקומית.

from typing import Dict, List, Union

from google.cloud import aiplatform
from google.protobuf import json_format
from google.protobuf.struct_pb2 import Value


def predict_custom_trained_model_sample(
    project: str,
    endpoint_id: str,
    instances: Union[Dict, List[Dict]],
    location: str = "us-central1",
    api_endpoint: str = "us-central1-aiplatform.googleapis.com",
):
    """
    `instances` can be either single instance of type dict or a list
    of instances.
    """
    # The AI Platform services require regional API endpoints.
    client_options = {"api_endpoint": api_endpoint}
    # Initialize client that will be used to create and send requests.
    # This client only needs to be created once, and can be reused for multiple requests.
    client = aiplatform.gapic.PredictionServiceClient(client_options=client_options)
    # The format of each instance should conform to the deployed model's prediction input schema.
    instances = instances if isinstance(instances, list) else [instances]
    instances = [
        json_format.ParseDict(instance_dict, Value()) for instance_dict in instances
    ]
    parameters_dict = {}
    parameters = json_format.ParseDict(parameters_dict, Value())
    endpoint = client.endpoint_path(
        project=project, location=location, endpoint=endpoint_id
    )
    response = client.predict(
        endpoint=endpoint, instances=instances, parameters=parameters
    )
    print("response")
    print(" deployed_model_id:", response.deployed_model_id)
    # The predictions are a google.protobuf.Value representation of the model's predictions.
    predictions = response.predictions
    for prediction in predictions:
        print(" prediction:", prediction)

המאמרים הבאים

כדי לחפש ולסנן דוגמאות קוד למוצרים אחרים של Google Cloud , אפשר להיעזר בדפדפן לדוגמאות שלGoogle Cloud .