Evaluating Models with the Fairness Indicators Dashboard [Beta]
Fairness Indicators for TensorBoard enables easy computation of commonly-identified fairness metrics for binary and multiclass classifiers. With the plugin, you can visualize fairness evaluations for your runs and easily compare performance across groups.
In particular, Fairness Indicators for TensorBoard allows you to evaluate and visualize model performance, sliced across defined groups of users. Feel confident about your results with confidence intervals and evaluations at multiple thresholds.
Many existing tools for evaluating fairness concerns don’t work well on large scale datasets and models. At Google, it is important for us to have tools that can work on billion-user systems. Fairness Indicators will allow you to evaluate across any size of use case, in the TensorBoard environment or in Colab.
To install Fairness Indicators for TensorBoard, run:
python3 -m virtualenv ~/tensorboard_demo source ~/tensorboard_demo/bin/activate pip install --upgrade pip pip install fairness_indicators pip install tensorboard-plugin-fairness-indicators
If you want to test out Fairness Indicators in TensorBoard, you can download
sample TensorFlow Model Analysis evaluation results (eval_config.json, metrics
and plots files) and a
demo.py utility from Google Cloud Platform,
using following command.
pip install gsutil gsutil cp -r gs://tensorboard_plugin_fairness_indicators/ .
Navigate to directory containing downloaded files.
This evaluation data is based on the Civil Comments dataset, calculated using Tensorflow Model Analysis's model_eval_lib library. It also contains a sample TensorBoard summary data file for reference.
demo.py utility writes a TensorBoard summary data file, which will be read
by TensorBoard to render the Fairness Indicators dashboard (See the
for more information on summary data files).
Flags to be used with the
--logdir: Directory where TensorBoard will write the summary
--eval_result_output_dir: Directory containing evaluation results evaluated by TFMA (downloaded in last step)
demo.py utility to write the summary results in the log directory:
python demo.py --logdir=. --eval_result_output_dir=.
Note: For this demo, please run TensorBoard from the same directory containing all the downloaded files.
This will start a local instance. After the local instance is started, a link will be displayed to the terminal. Open the link in your browser to view the Fairness Indicators dashboard.
Fairness_Indicators_TensorBoard_Plugin_Example_Colab.ipynb contains an end-to-end demo to train and evaluate a model and visualize fairness evaluation results in TensorBoard.
To use the Fairness Indicators with your own data and evaluations:
Train a new model and evaluate using
tensorflow_model_analysis.ExtractEvaluateAndWriteResultAPI in model_eval_lib. For code snippets on how to do this, see the Fairness Indicators colab here.
Write Fairness Indicators Summary using
writer = tf.summary.create_file_writer(<logdir>) with writer.as_default(): summary_v2.FairnessIndicators(<eval_result_dir>, step=1) writer.close()
- Select the new evaluation run using the drop-down on the left side of the dashboard to visualize results.