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injecto2013-11-25 16:33:06

Are there libraries for working with sparse matrices in Java?

Solving the 0-1 optimization problem (a subset of integer programming (MIP) problems). The subject area is such that it is necessary to form matrices of gigantic sizes (up to 8e7 x 8e7).

The problem is that popular libraries for working with such matrices do not support rows x columns > 2^31.

Actually the question is: are there any libraries for working with such matrices or, if they are not, what strategy should be chosen for their efficient storage/generation?

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@sevka_fedoroff

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Vsevolod, 2013-11-25 @sevka_fedoroff

I haven't tried it, but here's an example: https://github.com/fommil/matrix-toolkits-java

Google search for "java sparse matrix"

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