Self-edit

I have temporarily removed the content of three posts because they have some similarities with an article I wrote that is being published in an academic journal. Both the article and the blogpost share the same origin, a paper I wrote in my graduate studies. Even though a blogpost probably doesn't count as having previously published the material, I'm taking them off the blog in order to avoid the appearance of impropriety. I'll put them back online in a year or so.