addressalign-toparrow-leftarrow-rightbackbellblockcalendarcameraccwcheckchevron-downchevron-leftchevron-rightchevron-small-downchevron-small-leftchevron-small-rightchevron-small-upchevron-upcircle-with-checkcircle-with-crosscircle-with-pluscrossdots-three-verticaleditemptyheartexporteye-with-lineeyefacebookfolderfullheartglobegmailgooglegroupsimageimagesinstagramlinklocation-pinm-swarmSearchmailmessagesminusmoremuplabelShape 3 + Rectangle 1outlookpersonStartprice-ribbonImported LayersImported LayersImported Layersshieldstartickettrashtriangle-downtriangle-uptwitteruseryahoo

Introduction to Digital Signal Processing in Hadoop

This month we have Adam Laiacano from Tumblr presenting "Introduction to Digital Signal Processing in Hadoop". Note that the event is at Pivotal, but moved to a new office at 19th street and 6th ave.


In this talk I'm going to introduce the concepts of digital signals, filters, and their interpretation in both the time and frequency domain, and work through a few simple examples of low-pass filter design and application. It's much more application focused than theoretical, and there is no assumed prior knowledge of signal processing.

I'll work through how they can be used either in a real-time stream or in batch-mode in Hadoop (with Scalding). I'll hopefully have some examples of how to detect trendy meme-ish blogs on Tumblr.


Adam Laiacano is a Data Scientist and Engineer at Tumblr, a blogging network with over 140 million blogs, where he's responsible for collecting and analyzing large volumes of data to gain a better understanding of trends and activity within the Tumblr community. He holds a Bachelor of Science degree in Electrical Engineering from Northeastern University, and designed signal detection systems for low-power atomic clocks before joining Tumblr.

Join or login to comment.

  • Paul D.

    Here are video and slides from the event:

    October 23, 2013

  • Neil P.

    Great stuff - loved it, going to have to go away for a while and figure out where I can use it

    October 17, 2013

  • Geoffrey S. N.

    please give my seat to another. sorry to miss it.

    October 16, 2013

  • Artem E.

    please confirm location

    October 16, 2013

    • Paul D.

      uh, it's still at the address listed on this page. If that changes, the page changes...

      1 · October 16, 2013

  • Siddharthan

    Apologies for the last minute change. Hoping this opens for someone else

    October 16, 2013

  • William S.

    Come on lucky #18...haha

    October 16, 2013

  • A former member
    A former member

    giving up my spot; flu

    October 16, 2013

  • DH

    Hello Paul and Max! Need to know if we will be recording this and making the video available online.

    Pls confirm!

    Good work w/ this meetup!

    Tks again!

    October 16, 2013

  • carlos r.

    Can't make it tonight but would be very intereset in slides or video

    October 16, 2013

  • Azeem M.

    sick, can't make it

    October 16, 2013

  • Patrick G.

    Interested to see if anyone has insight into map/reduce in a heterogeneous computing environment (such as with GPUs)

    October 14, 2013

  • William S.

    Will this meetup be recorded?

    October 11, 2013

    • Paul D.

      It will (hopefully), we'll post video after.

      1 · October 11, 2013

  • Georges J.

    Exicited to be going.

    October 8, 2013

  • Utah I.


    1 · October 8, 2013

People in this
Meetup are also in:

Sign up

Meetup members, Log in

By clicking "Sign up" or "Sign up using Facebook", you confirm that you accept our Terms of Service & Privacy Policy