Mostly I'm confused why a nearly 15 year old, poorly-written journal article appeared on HN today with no comments. And I wasn't kidding: I'm familiar with the state of the art and reading it from the title on down it really felt like something a bot glued together.

There was some buzz around convolution methods in the late 90s. Lake DSP had a notable patent which actually inspired some research. Most if not all of these methods now exist in Matlab and scipy.signal.convolve with far better documentation.

But I grow weary of random, crappy HN links like this one that really feel like some enthusiast did a Google search but didn't even read the paper.