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Graph/so-79632726

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so-79632726

so-79632726

so-79632726

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PROPOSESSolution

I would not try to write serialization and deserialization routines for every sparse type — supporting a `lil_matrix`. Outcome: I would just implement one, and convert into that single type before serialization.

PROPOSESSolution

I would serialize CSR arrays rather than serialize COO arrays. Tension: a CSR array uses about 30% less memory. Outcome: there are nearly no downsides to switching from COO to CSR.

PROPOSESSolution

I don't know if you specifically need the serialized format to be JSON — SciPy already has a way to serialize a matrix to a file. Tension: If you don't,. Outcome: SciPy already has a way to serialize a matrix to a file.

PROPOSESSolution

I wouldn't convert the arrays within the SciPy matrix to list — serialize NumPy arrays. Tension: lists of Python floats take up about 3x more memory than equivalent NumPy arrays. Outcome: there is a library that allows you to directly serialize NumPy arrays.

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