Talk:Generalized lifting

This article is a total mess and seems to be some sort of promotion for the cited work. I have a solid mathematical, scientific and engineering background and I had a hard time even understanding what the article was about! On top of a weird use of language, some technical errors seem to be present. For instance, $$g_{j+1}[n]$$ is referred to both as an error term and a predicted signal. How does that even mean anything? The diagram shown for the generalized lifting also seems to have the even and odd label inverted with respect to the definition given.

On a more general note, there are no discussion of what those prediction and update maps can be exactly, to the point that a paragraph expresses doubts about the usefulness of the update map, nor are there any justification for the usefulness of the entire scheme. Many things can be generalized, but without a justification for doing so, the pertinence of such generalizations remains dubious, at best. — Preceding unsigned comment added by 132.204.90.170 (talk) 02:49, 7 February 2018 (UTC)