リアルタイムレコメンデーションのフィルタリング

import boto3
 
personalize = boto3.client('personalize')
 
response = personalize.create_filter(
    name = 'Filter Name',
    datasetGroupArn = 'Dataset Group ARN',
    filterExpression = 'EXCLUDE ItemID WHERE Items.CATEGORY IN ($CATEGORY)'
) 
filter_arn = response["filterArn"]
print("Filter ARN: " + filter_arn)

public static String createFilter(PersonalizeClient personalizeClient,
                                 String filterName,
                                 String datasetGroupArn,
                                 String filterExpression) {
    try {
        CreateFilterRequest request = CreateFilterRequest.builder()
                .name(filterName)
                .datasetGroupArn(datasetGroupArn)
                .filterExpression(filterExpression)
                .build();

        return personalizeClient.createFilter(request).filterArn();
    }
    catch(PersonalizeException e) {
        System.err.println(e.awsErrorDetails().errorMessage());
        System.exit(1);
    }
    return "";
}

// Get service clients module and commands using ES6 syntax.
import { CreateFilterCommand } from "@aws-sdk/client-personalize";
import { personalizeClient } from "./libs/personalizeClients.js";
// Or, create the client here.
// const personalizeClient = new PersonalizeClient({ region: "REGION"});

// Set the filter's parameters.
export const createFilterParam = {
  datasetGroupArn: "DATASET_GROUP_ARN" /* required */,
  name: "NAME" /* required */,
  filterExpression: "FILTER_EXPRESSION" /*required */,
};

export const run = async () => {
  try {
    const response = await personalizeClient.send(
      new CreateFilterCommand(createFilterParam),
    );
    console.log("Success", response);
    return response; // For unit tests.
  } catch (err) {
    console.log("Error", err);
  }
};
run();

import boto3

personalize_runtime = boto3.client("personalize-runtime")

response = personalize_runtime.get_recommendations(
    campaignArn = "Campaign ARN",
    userId = "User ID",
    filterArn = "Filter ARN",
    filterValues = {
      "Parameter name": "\"value1\"",
      "Parameter name": "\"value1\",\"value2\",\"value3\""
      ....
    }
)

次の例では、2 つのパラメータを使用しています。1 つは 2 つの値を持ち、もう 1 つは 1 つの値を持ちます。フィルター式に応じて、コードを変更して、parameterName フィールドおよび parameterValue フィールドを追加または削除します。

public static void getFilteredRecs(PersonalizeRuntimeClient personalizeRuntimeClient,
                                   String campaignArn,
                                   String userId,
                                   String filterArn,
                                   String parameter1Name,
                                   String parameter1Value1,
                                   String parameter1Value2,
                                   String parameter2Name,
                                   String parameter2Value){

    try {

        Map<String, String> filterValues = new HashMap<>();

        filterValues.put(parameter1Name, String.format("\"%1$s\",\"%2$s\"",
                parameter1Value1, parameter1Value2));
        filterValues.put(parameter2Name, String.format("\"%1$s\"",
                parameter2Value));

        GetRecommendationsRequest recommendationsRequest = GetRecommendationsRequest.builder()
                .campaignArn(campaignArn)
                .numResults(20)
                .userId(userId)
                .filterArn(filterArn)
                .filterValues(filterValues)
                .build();

        GetRecommendationsResponse recommendationsResponse = personalizeRuntimeClient.getRecommendations(recommendationsRequest);
        List<PredictedItem> items = recommendationsResponse.itemList();

        for (PredictedItem item: items) {
            System.out.println("Item Id is : "+item.itemId());
            System.out.println("Item score is : "+item.score());
        }
    } catch (PersonalizeRuntimeException e) {
        System.err.println(e.awsErrorDetails().errorMessage());
        System.exit(1);
    }
}

// Get service clients module and commands using ES6 syntax.
import { GetRecommendationsCommand } from "@aws-sdk/client-personalize-runtime";
import { personalizeRuntimeClient } from "./libs/personalizeClients.js";
// Or, create the client here:
// const personalizeRuntimeClient = new PersonalizeRuntimeClient({ region: "REGION"});

// Set recommendation request parameters.
export const getRecommendationsParam = {
  campaignArn: "CAMPAIGN_ARN" /* required */,
  userId: "USER_ID" /* required */,
  numResults: 15 /* optional */,
  filterArn: "FILTER_ARN" /* required to filter recommendations */,
  filterValues: {
    PROPERTY:
      '"VALUE"' /* Only required if your filter has a placeholder parameter */,
  },
};

export const run = async () => {
  try {
    const response = await personalizeRuntimeClient.send(
      new GetRecommendationsCommand(getRecommendationsParam),
    );
    console.log("Success!", response);
    return response; // For unit tests.
  } catch (err) {
    console.log("Error", err);
  }
};
run();