Nice post! For completeness: Apache Arrow is also adding sparse tensors in c++ [1] and wrapping them with python [2] (although the documentation for Python migh

Nice post! For completeness: Apache Arrow is also adding sparse tensors in c++ [1] and wrapping them with python [2] (although the documentation for Python might be a bit lacking at the moment). [1] https://arrow.apache.org/docs/cpp/api/tensor.html?highlight=sparsetensor#sparse-tensors https://arrow.apache.org/docs/cpp/api/tensor.html?highlight=... [2] https://github.com/apache/arrow/blob/master/python/pyarrow/tensor.pxi#L132 https://github.com/apache/arrow/blob/master/python/pyarrow/t...