Trulia collects large amounts of data from its 31 million users and other sources to power personalization features on its real estate search platform. It developed an early prototype for personalized suggestions based on Netflix Prize models but found a better approach was to model user click behavior for real-time recommendations. The next version of Trulia Suggests will more closely integrate with the home buying process, use additional models beyond preference prediction, and provide a more visual and entertaining experience.
8. Natural Fit for Personalization
One (long) search
Sometimes very long (see: San Francisco market)
Often multiple sessions
Lots to interact with on Trulia
20. Trulia Suggests v2.0
More integration into the natural home buying process
More models, not just preference prediction
More visual
More entertaining
#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.