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IIR filters can be evaluated in parallel (github.io)
5 points by raph to programming 187 days ago | 3 comments
It's well known that finite impulse response (FIR) filters can be evaluated in parallel, but less well known that infinite impulse response (IIR) filters can as well, as a special case of scan (generalized prefix sum). I explain, and cite a bunch of literature.


2 points by shawn 186 days ago

Looks like this got picked up on HN: https://news.ycombinator.com/item?id=19175465

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3 points by raph 186 days ago

Every "major" blog post I write gets picked up on HN now. It's a blessing and a curse :)

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That's awesome. I think the extra signifigance here is it was cross-posted from Laarc to HN. A milestone.

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