DeepPipe: Deep Pipeline Embeddings for AutoML

DeepPipe efficiently optimizes Machine Learning Pipelines using meta-learning. For detailed information, refer to our paper Deep Pipeline Embeddings for AutoML accepted at KDD 2023. Additionally, you can visit our blog-post to have a friendly insight on how our method works.

Installation

We present an API for optimizing pipelines in scikit-learn based on the TensorOboe search space. You can use it to search for accurate pipelines or for benchmarking your Machine Learning model on tabular data.

conda create -n deeppipe_env python==3.9
pip install deeppipe_api

Getting started

We present an example using an OpenML dataset. However, it works with any tabular data typed as pandas dataframe.

from deeppipe_api.deeppipe import load_data, openml, DeepPipe

task_id = 37
task = openml.tasks.get_task(task_id)
X_train, X_test, y_train, y_test = load_data(task, fold=0)
deep_pipe = DeepPipe(n_iters = 50,  #bo iterations
                    time_limit = 3600 #in seconds
                    )
deep_pipe.fit(X_train, y_train)
y_pred = deep_pipe.predict(X_test)

#Test
score = deep_pipe.score(X_test, y_test)
print("Test acc.:", score)

#print best pipeline
print(deep_pipe.model)

Ensemble of Pipelines

It is possible to ensemble the best pipelines, by using a greedy approach.

from deeppipe_api.deeppipe import load_data, openml, DeepPipe

task = openml.tasks.get_task(task_id=37)
X_train, X_test, y_train, y_test = load_data(task, fold=0)
deep_pipe = DeepPipe(n_iters = 50,  #bo iterations
                    time_limit = 3600, #in seconds
                    create_ensemble = False,
                    ensemble_size = 10,
                    )
deep_pipe.fit(X_train, y_train)
y_pred = deep_pipe.predict(X_test)
score = deep_pipe.score(X_test, y_test)
print("Test acc.:", score) 

Advanced Usage

For meta-training DeepPipe or testing other search spaces, you can refer to the folder src/deeppipe_api/experiments/.

Our Paper

If you use this repository/package, please cite our paper:

@article{arango2023deep,
  title={Deep Pipeline Embeddings for AutoML},
  author={Arango, Sebastian Pineda and Grabocka, Josif},
  journal={arXiv preprint arXiv:2305.14009},
  year={2023}
}