• API Reference - SingleDatasetPerformance

Single Dataset Performance

This notebooks provides an overview for using and understanding single dataset performance check.

Structure:

• What Is the Purpose of the Check?

• Generate Dataset

• Run the check

• Define a condition

What Is the Purpose of the Check?

This check returns the results from a dict of metrics, in the format metric name: scorer, calculated for the given model dataset. The scorer should be either a sklearn scorer or a custom metric (see Metrics Guide for further details). Use this check to evaluate the performance on a single vision dataset such as a test set.

Generate Dataset

Note

In this example, we use the pytorch version of the mnist dataset and model. In order to run this example using tensorflow, please change the import statements to:

from deepchecks.vision.datasets.classification import mnist_tensorflow as mnist

from deepchecks.vision.checks import SingleDatasetPerformance
from deepchecks.vision.datasets.classification import mnist_torch as mnist

train_ds = mnist.load_dataset(train=True, object_type='VisionData')

Run the check

The check will use the default classification metrics - precision and recall.

check = SingleDatasetPerformance()
result = check.run(train_ds)
result.show()

Processing Batches:
|     | 0/1 [Time: 00:00]
Processing Batches:
|█████| 1/1 [Time: 00:01]
Processing Batches:
|█████| 1/1 [Time: 00:01]

Computing Check:
|     | 0/1 [Time: 00:00]

Computing Check:
|█████| 1/1 [Time: 00:00]

To display the results in an IDE like PyCharm, you can use the following code:

#  result.show_in_window()

The result will be displayed in a new window.

Now we will run a check with a metric different from the defaults- F-1. You can read more about setting metrics in the Metrics Guide.

check = SingleDatasetPerformance(scorers={'f1': 'f1_per_class'})
result = check.run(train_ds)
result

Processing Batches:
|     | 0/1 [Time: 00:00]
Processing Batches:
|█████| 1/1 [Time: 00:01]
Processing Batches:
|█████| 1/1 [Time: 00:01]

Computing Check:
|     | 0/1 [Time: 00:00]

Computing Check:
|█████| 1/1 [Time: 00:00]

Define a Condition

We can define a condition to validate that our model performance score is above or below a certain threshold. The condition is defined as a function that takes the results of the check as input and returns a ConditionResult object.

check = SingleDatasetPerformance()
check.add_condition_greater_than(0.5)
result = check.run(train_ds)
result.show(show_additional_outputs=False)

Processing Batches:
|     | 0/1 [Time: 00:00]
Processing Batches:
|█████| 1/1 [Time: 00:02]
Processing Batches:
|█████| 1/1 [Time: 00:02]

Computing Check:
|     | 0/1 [Time: 00:00]

Computing Check:
|█████| 1/1 [Time: 00:00]

We can also define a condition on a specific metric (or a subset of the metrics) that was passed to the check and a specific class, instead of testing all the metrics and all the classes which is the default mode.

check = SingleDatasetPerformance()
check.add_condition_greater_than(0.8, metrics=['Precision'], class_mode='3')
result = check.run(train_ds)
result.show(show_additional_outputs=False)

Processing Batches:
|     | 0/1 [Time: 00:00]
Processing Batches:
|█████| 1/1 [Time: 00:01]
Processing Batches:
|█████| 1/1 [Time: 00:01]

Computing Check:
|     | 0/1 [Time: 00:00]

Computing Check:
|█████| 1/1 [Time: 00:00]

previous

Simple Model Comparison

next

Class Performance