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Trulia Suggests
April 4, 2013
Trulia
Big Data @ Trulia



             31M users
              Property data
                  Images
            Public record data
                Agent data
      Local data (crimes, transit, etc)
                Q&A data
Trulia
Trulia
Trulia
Trulia
Natural Fit for Personalization




  One (long) search
      Sometimes very long (see: San Francisco market)
      Often multiple sessions
      Lots to interact with on Trulia
Largest Companies
Limited Personalization
Prototype


   Initially considered work the work surrounding the
      Netflix Prize and KDD Cups
Prototype



Quickly recognized
  - real-time higher priority than accuracy
  - requiresbetter model of user click behavior
Prototyping


   Unconstrained interface development
Hide, Like, or Follow
Pick a house user community
Pick a house user community
Pick a house user community
Suggestions  Visual Interface
Suggestions  Assembling Lists
Trulia Suggests v2.0




  More integration into the natural home buying process
  More models, not just preference prediction
  More visual
  More entertaining
Trulia




             Were hiring!

         datascience@trulia.com

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Suggests

Editor's Notes

  • #9: Everything logged
  • #12: We were familiar with this work, which focuses on preference prediction, and without time constraints.
  • #13: Users are easily distracted
  • #14: The interface decisions are at least as important as the algorithm decisions. Particularly early on. We didnt want to be biased by our current FE (FE tech has developed rapidly) so we build a separate prototype using the latest tech and then found ways to carry elements back.
  • #15: Hide because people often do repeat searches, like as the positive preference, and follow as a stronger like in which updates are sent
  • #16: We originally planned to bootstrap the system using only behavior. But users are easily distracted. While we continue to build better models of user real estate search behavior, we decided just to ask users.
  • #19: Recommendations themselves are displayed in a visual interface. Cards instead of lists. Inline photos. Bits of animation.
  • #20: Lists are central to home buying. Already on IPad. Coming soon to rentals, mobile.