One group within the community calls it "Algorithmic Information theory" or AIT, and another "Kolmogorov complexity". I talked to Hutter when we was writing that article for Scholarpedia that you cite. He decided to use the more neutral term "algorithmic complexity" so as not to take sides on this issue. Unfortunately, "algorithmic complexity" is more typically taken as meaning "computational complexity theory". For example, if you search for it under Wikipedia you will get redirected. I know, it's all kind of ridiculous and confusing...