CAJUN (20th of November) - David Hossack - Hosted by Akamai

Important Notice 1: This CAJUN meeting will be at Akamai, which is very close to MIT. The event will start at 4.30 pm (the main talk starting 5.00, however, signing people in will take some time)

Important Notice 2: Please bring some government-issued ID to the event (required by Akamai security). Non-USA non-Passports are OK.

Important Notice 3: Akamai security would like a list of who is attending. Hence, please sign up by Monday evening of the 18th of November. If you sign up, but cannot make it, it won't be a major problem (but please try to inform us if this is the case. If your Meetup name is different from your normal name, please contact Philip Tellis on the Julia Slack (or make a note in the boston-local slack channel).

We will welcome David Hossack who will give a talk titled Composable iterator processors applied to digital signal processing. Talk + questions will take roughly 1 hour, with the opportunity to stay and socialise afterwards. Food will be provided. Any questions can be asked at the #boston-local channel at the Julia Slack.

Location: This time we have been invited to Akamai, who will host us. The address is: 145 Broadway. The entrance is from Broadway. There's a security desk once you enter and they will sign you in.

Abstract - Composable iterator processors applied to digital signal processing

Julia iterators provide a convenient means for describing sampled-data signals used for digital signal processing.
This talk builds on this and describes a simple means of composing signal processing operations to describe a signal processing system independent of the applied input signal. See: https://github.com/arghhhh/julia-signals-systems As an example, a widely used decimating low pass filter will be described using several equivalent descriptions. Although this work was motivated to aid in modelling signal processing chains that would be implemented in hardware on custom integrated circuits (silicon) there could be many other applications for Julia users in the general processing of sequences of data. Some further simple examples are drawn from https://clojure.org/reference/transducers and https://juliafolds.github.io/Transducers.jl/dev/#Examples