[GitHub] [incubator-mxnet] zheng-da opened a new issue #14311: constructing a CSR matrix from the coo input is slow.

[GitBox <gi...@apache.org>]

zheng-da opened a new issue #14311: constructing a CSR matrix from the coo input is slow.
URL: https://github.com/apache/incubator-mxnet/issues/14311
 
 
   When constructing a CSR matrix from the coo input, MXNet replies on scipy. That is, MXNet converts the coo inputs to NumPy arrays first and convert them to the scipy csr and then to MXNet CSR. This is very slow when the coo input is large.

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