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There are various questions and posts about scan/associated_scan over ragged data, what about sparse arrays now and in the future? #25142

Answered by jakevdp
cottrell asked this question in Q&A
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wondering what are the hard constraints on this stuff for the future.

The main hard constraint at the moment is that the XLA complier and StableHLO more generally do not support sparse or ragged data structures, which limits the ability of the JAX project to do anything non-experimental in this area.

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