Current endgame employee here. Yes. In R&D our data science team has published a few and the vulnerability research & prevention team has as well. Some of these were in the form of talks.
The article that your co-worker, Cody Pierce, wrote refers to MELTDOWN#1,2,3 and SPECTRE#1,2,3 in a number of headings describing the different detection scenarios. Nowhere in the article is there an explanation about what those numbered heading MELTDOWN / SPECTRE titles are referring to. May you provide links to what these are referring to, or ask Cody Pierce to post an explanation on the blog.
Thank you for your time!
nm. I see now that the title of each variant is in the embedded image depicting the tabular results. I was trying to find the explanation via text search.