pipelines/samples/core/visualization/confusion_matrix.py

56 lines
2.2 KiB
Python

# Copyright 2021 The Kubeflow Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import kfp.deprecated.dsl as dsl
from kfp.deprecated.components import create_component_from_func
# Advanced function
# Demonstrates imports, helper functions and multiple outputs
from typing import NamedTuple
@create_component_from_func
def confusion_visualization(matrix_uri: str = 'https://raw.githubusercontent.com/kubeflow/pipelines/master/samples/core/visualization/confusion_matrix.csv') -> NamedTuple('VisualizationOutput', [('mlpipeline_ui_metadata', 'UI_metadata')]):
"""Provide confusion matrix csv file to visualize as metrics."""
import json
metadata = {
'outputs' : [{
'type': 'confusion_matrix',
'format': 'csv',
'schema': [
{'name': 'target', 'type': 'CATEGORY'},
{'name': 'predicted', 'type': 'CATEGORY'},
{'name': 'count', 'type': 'NUMBER'},
],
'source': matrix_uri,
'labels': ['rose', 'lily', 'iris'],
}]
}
from collections import namedtuple
visualization_output = namedtuple('VisualizationOutput', [
'mlpipeline_ui_metadata'])
return visualization_output(json.dumps(metadata))
@dsl.pipeline(
name='confusion-matrix-pipeline',
description='A sample pipeline to generate Confusion Matrix for UI visualization.'
)
def confusion_matrix_pipeline():
confusion_visualization_task = confusion_visualization()
# You can also upload samples/core/visualization/confusion_matrix.csv to Google Cloud Storage.
# And call the component function with gcs path parameter like below:
# confusion_visualization_task2 = confusion_visualization('gs://<bucket-name>/<path>/confusion_matrix.csv')