> (1) It's not free when the research is funded by public tax dollars (which I grant is not always, but often the case). The work was done at FAIR (Facebook),

> (1) It's not free when the research is funded by public tax dollars (which I grant is not always, but often the case). The work was done at FAIR (Facebook), so that's not applicable here. > (2) I'm not aware of this promise you're speaking of... my understanding is that authors of papers are under no obligation to produce any implementation, let alone usable, documented implementations. Look at the paper [1], it's the last sentence of the abstract: "Code will be made available." [1] https://research.fb.com/wp-content/uploads/2017/08/maskrcnn.pdf https://research.fb.com/wp-content/uploads/2017/08/maskrcnn....