Not all these contributions were from 2018, but the few selected below were among the most visited in 2018. Some were heavily featured, so it does not mean that they represent the average DSC interest. A bigger list featuring 900+ most popular articles can be found here. I am still working on categorizing them, and may hire an intern to work on this project, using material described in this article or this one.
Likewise, one of my old academic papers published in 1994 in IEEE Pattern Analysis and Machine Intelligence, an obscure, very theoretical math paper, entitled "Simulated Annealing: a Proof of Convergence" is getting a lot of traction recently in AI circles - giving me an academic score better than many university professors. I will investigate this and try to figure out why it is so popular today.