IbisML

ibisml is a work-in-progress library for developing Machine Learning feature engineering pipelines using ibis. These pipelines can then be used to transform and feed data to other machine learning libraries like xgboost or scikit-learn.

import ibis
import ibisml as ml

# A recipe for a feature engineering pipeline that:
# - imputes missing values in numeric columns with their mean
# - applies standard scaling to all numeric columns
# - one-hot-encodes all nominal columns
recipe = ml.Recipe(
    ml.ImputeMean(ml.numeric()),
    ml.ScaleStandard(ml.numeric()),
    ml.OneHotEncode(ml.nominal()),
)

# Use the recipe inside of a larger Scikit-Learn pipeline
from sklearn.pipeline import Pipeline
pipeline = Pipeline([("recipe", recipe), ("model", LinearSVC())])

# Fit the recipe against some local training data,
# just as you would with any other scikit-learn model
X, y = load_training_data()
pipeline.fit(X, y)

# Evaluate the model against some local testing data.
X_test, y_test = load_testing_data()
pipeline.score(X_test, y_test)

# Now apply the same preprocessing pipeline against any of ibis's
# supported backends
con = ibis.connect(...)
X_remote = con.table["mytable"]
for batch in recipe.to_pyarrow_batches(X_remote):
    ...

By using ibis for preprocessing and feature engineering, feature engineering pipelines may be compiled to SQL and executed on a wide range of performant and scalable backends. No more need to rewrite code for production deployments, pipelines may be developed locally (against e.g. duckdb) and deployed to production (against e.g. spark) with only a single line of code change.

Help Wanted!

ibisml is a work-in-progress. If you're interested in getting involved (whether through feature requests, PRs, or just sharing opinions), we'd love to hear from you.

License

toohsk/ibisml

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