I think the underlying algorithms/architecture are pretty different. I believe Incremental is based on http://matthewhammer.org/icfp11/ChenDuHaAc2011-implicit-

I think the underlying algorithms/architecture are pretty different. I believe Incremental is based on http://matthewhammer.org/icfp11/ChenDuHaAc2011-implicit-SAC.pdf http://matthewhammer.org/icfp11/ChenDuHaAc2011-implicit-SAC.... and Differential Dataflow is based on the ideas in https://www.microsoft.com/en-us/research/wp-content/uploads/2013/11/naiad_sosp2013.pdf https://www.microsoft.com/en-us/research/wp-content/uploads/... .