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UID:pretalx-pyconde-pydata-2026-GVHZW9@pretalx.com
DTSTART;TZID=CET:20260414T114500
DTEND;TZID=CET:20260414T121500
DESCRIPTION:[Cold start](https://en.wikipedia.org/wiki/Cold_start_(recommen
 der_systems) is a critical bottleneck for marketplaces: new items lack beh
 avioral signals and reviews\, so ranking models under-expose them\, delayi
 ng the very signals needed to rank them well. This talk shares practical s
 olutions developed at scale for a travel marketplace\, including guarantee
 d exposure at key positions\, efficient real-time re-ranking under latency
  constraints\, and targeted boosting for unactivated items. Attendees will
  learn how experiment-driven iteration shaped a robust system that acceler
 ates early traction for new items without sacrificing overall marketplace 
 health.
DTSTAMP:20260412T141854Z
LOCATION:Palladium [2nd Floor]
SUMMARY:Solving Marketplace Cold Start at Scale as part of the ranking syst
 em - Theodore Meynard
URL:https://pretalx.com/pyconde-pydata-2026/talk/GVHZW9/
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