Dear James,

I hope you don't mind me contacting you out of the blue--we've exchanged
some emails a few years ago regarding efficient cloud algorithms.

I am getting in touch since I wanted to mention an emerging research
direction which you may find interesting. Specifically, there are a few interesting recent results on sparse .
For example, please see these two recent papers:

1. https://arxiv.org/abs/2301.00774 

2. https://arxiv.org/abs/2306.11695

I wanted to ask if you'd be interested in having a closer look at this, and
in particular if any of your methods would port to this setting.

Best regards,
David