Criar um job de rotulagem de dados para aprendizado ativo

Cria um job de rotulagem de dados para aprendizado ativo usando o método create_data_labeling_job.

Exemplo de código

Java

Antes de testar esse exemplo, siga as instruções de configuração para Java no Guia de início rápido da Vertex AI sobre como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API Vertex AI para Java.

Para autenticar na Vertex AI, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local.

import com.google.cloud.aiplatform.v1.ActiveLearningConfig;
import com.google.cloud.aiplatform.v1.DataLabelingJob;
import com.google.cloud.aiplatform.v1.DatasetName;
import com.google.cloud.aiplatform.v1.JobServiceClient;
import com.google.cloud.aiplatform.v1.JobServiceSettings;
import com.google.cloud.aiplatform.v1.LocationName;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.protobuf.Value;
import com.google.protobuf.util.JsonFormat;
import java.io.IOException;

public class CreateDataLabelingJobActiveLearningSample {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String project = "PROJECT";
    String displayName = "DISPLAY_NAME";
    String dataset = "DATASET";
    String instructionUri = "INSTRUCTION_URI";
    String inputsSchemaUri = "INPUTS_SCHEMA_URI";
    String annotationSpec = "ANNOTATION_SPEC";
    createDataLabelingJobActiveLearningSample(
        project, displayName, dataset, instructionUri, inputsSchemaUri, annotationSpec);
  }

  static void createDataLabelingJobActiveLearningSample(
      String project,
      String displayName,
      String dataset,
      String instructionUri,
      String inputsSchemaUri,
      String annotationSpec)
      throws IOException {
    JobServiceSettings settings =
        JobServiceSettings.newBuilder()
            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
            .build();
    String location = "us-central1";

    // 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 (JobServiceClient client = JobServiceClient.create(settings)) {
      JsonArray jsonAnnotationSpecs = new JsonArray();
      jsonAnnotationSpecs.add(annotationSpec);
      JsonObject jsonInputs = new JsonObject();
      jsonInputs.add("annotation_specs", jsonAnnotationSpecs);
      Value.Builder inputsBuilder = Value.newBuilder();
      JsonFormat.parser().merge(jsonInputs.toString(), inputsBuilder);
      Value inputs = inputsBuilder.build();
      ActiveLearningConfig activeLearningConfig =
          ActiveLearningConfig.newBuilder().setMaxDataItemCount(1).build();

      String datasetName = DatasetName.of(project, location, dataset).toString();

      DataLabelingJob dataLabelingJob =
          DataLabelingJob.newBuilder()
              .setDisplayName(displayName)
              .addDatasets(datasetName)
              .setLabelerCount(1)
              .setInstructionUri(instructionUri)
              .setInputsSchemaUri(inputsSchemaUri)
              .setInputs(inputs)
              .putAnnotationLabels(
                  "aiplatform.googleapis.com/annotation_set_name",
                  "data_labeling_job_active_learning")
              .setActiveLearningConfig(activeLearningConfig)
              .build();
      LocationName parent = LocationName.of(project, location);
      DataLabelingJob response = client.createDataLabelingJob(parent, dataLabelingJob);
      System.out.format("response: %s\n", response);
      System.out.format("Name: %s\n", response.getName());
    }
  }
}

Python

Antes de testar essa amostra, siga as instruções de configuração para Python Guia de início rápido da Vertex AI: como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API Vertex AI para Python.

Para autenticar na Vertex AI, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local.

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

def create_data_labeling_job_active_learning_sample(
    project: str,
    display_name: str,
    dataset: str,
    instruction_uri: str,
    inputs_schema_uri: str,
    annotation_spec: str,
    location: str = "us-central1",
    api_endpoint: str = "us-central1-aiplatform.googleapis.com",
):
    # 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.JobServiceClient(client_options=client_options)
    inputs_dict = {"annotation_specs": [annotation_spec]}
    inputs = json_format.ParseDict(inputs_dict, Value())

    active_learning_config = {"max_data_item_count": 1}

    data_labeling_job = {
        "display_name": display_name,
        # Full resource name: projects/{project}/locations/{location}/datasets/{dataset_id}
        "datasets": [dataset],
        "labeler_count": 1,
        "instruction_uri": instruction_uri,
        "inputs_schema_uri": inputs_schema_uri,
        "inputs": inputs,
        "annotation_labels": {
            "aiplatform.googleapis.com/annotation_set_name": "data_labeling_job_active_learning"
        },
        "active_learning_config": active_learning_config,
    }
    parent = f"projects/{project}/locations/{location}"
    response = client.create_data_labeling_job(
        parent=parent, data_labeling_job=data_labeling_job
    )
    print("response:", response)

A seguir

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