There are very interesting and fairly recent results on causal discovery under additive noise models [1]. Although such models aren't universally applicable the underlying concept is intuitive and a good fit for many problem domains. On the time series front, google open sourced CausalImpact [2] for Bayesian structural time-series modeling a few years ago. Looks like RankScience [3] is putting that research to good use.<p>I'm surprised that causal discovery doesn't get more play. Aside from the direct applications to scientific research, causality is a strong consistency hint for assessing models/features learned from data.<p>[1] <a href="https://news.ycombinator.com/item?id=8776582" rel="nofollow">https://news.ycombinator.com/item?id=8776582</a><p>[2] <a href="https://opensource.googleblog.com/2014/09/causalimpact-new-open-source-package.html" rel="nofollow">https://opensource.googleblog.com/2014/09/causalimpact-new-o...</a><p>[3] <a href="https://news.ycombinator.com/item?id=13552862" rel="nofollow">https://news.ycombinator.com/item?id=13552862</a>