Ranking Model Package.py

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For more information on uploading a model artifact to Fiddler, see Uploading a Model Artifact.

Suppose you would like to upload a model artifact for a ranking model.

Following is an example of what the package.py script may look like.

import pickle
from pathlib import Path
import pandas as pd

PACKAGE_PATH = Path(__file__).parent

class ModelPackage:

    def __init__(self):
        self.output_columns = ['score']
        with open(PACKAGE_PATH / 'model.pkl', 'rb') as infile:
            self.model = pickle.load(infile)
    
    def predict(self, input_df):
        pred = self.model.predict(input_df)
        return pd.DataFrame(pred, columns=self.output_columns)
    
def get_model():
    return ModelPackage()

Here, we are assuming that the model prediction column that has been specified in the fdl.ModelInfo object is called score.

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