~/talk

Food is personal! Design and impact of personalized recommendations in e-grocery

Talkat code.talks commerce 2018 · 2018-04-25..04-26· [machine-learning, data-science]
links:none on file
slides:none on file

Project builds a personalized webshop for 4,000+ items using a heterogeneous network that links user and item similarities from transaction history, computes a per user–item subnetwork, fits regressions and uses the F‑test p‑value to rank products; model recalculates daily and serves category rankings. A 1.5 year effort runs an A/B test with >20,000 orders, yields a 3.3 second median reduction in shopping time and about +7% revenue. Concrete features: per‑user ranked category pages and mix of repeat‑purchase and co‑purchase signals.

AI-written summary · about

  1. 0:00Start
  2. 6:20Collaborative Filtering
  3. 7:55User Item Matrix
  4. 8:47Item Similarity
  5. 18:56Outcome
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