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logistic-PCA-tipping

This is a Python implementation of logistic PCA, as described in:

@article{tipping1999probabilistic,
  title={Probabilistic visualisation of high-dimensional binary data},
  author={Tipping, Michael E},
  journal={Advances in neural information processing systems},
  pages={592--598},
  year={1999},
  publisher={Citeseer}
}

Dependencies are NumPy and Matplotlib. The implementation is in pca.py and a demo is in pca_vs_logistic_pca.ipynb. The demo scipt implements the synthetic dataset validation in Tipping's paper, additionally comparing to regular PCA.