Constraint propagation and search are hardly new techniques. In fact they're both from or from before the previous "AI winter." It's a shame they've been left o

Constraint propagation and search are hardly new techniques. In fact they're both from or from before the previous "AI winter." It's a shame they've been left out of so many of the deep learning generation's wheelhouses. They were considered fundamentals by the field a very short time ago. Also, I'm not knocking this paper at all. I think it's a great applied paper! Stitching together techniques to actually do something is a Herculean task. Hell, it's mostly what I do too.