Pop-up commerce
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The document provides insights into the vast array of user session data collected by eBay, highlighting 4-6 terabytes of data per day and over 150 million sessions. It discusses the distribution patterns of buyer and seller behaviors, revealing that buyers outnumber sellers and emphasizing power law distributions in various metrics. Additionally, it mentions the average lifespan of items listed on the platform and the high volume of new items introduced daily.
Pop-up commerce
- 2. Up
- 10. • 4-6 TB of User Session Data Collected Per Day • 150+ million sessions • 10+K event types • Hundreds of millions of user guids
- 20. Miami Phoenix Tampa Miami DFW (Colts/Bears) (Giants/Patriots) (Steelers/Cardinals) (Saints/Colts) (Packers/Steelers)
- 32. Paris Hilton wii Temporal Pattern in Dotted line and Optimal State Sequence in Solid line
- 40. Multi-year Query Burst Bursty Queries Volume Time-series Detection Index the queries for periodicity search Periodically Bursting Queries Non-periodic , one-off buzz events royal Superbowl Hannukah wedding justin bieber hair Cluster co-occurring Bursty queries Auto-detected events Cleaning and based on other dimensions labeling
- 41. Valentine Wreath Back to school Primitive Valentines Girls backpack Valentine Cards Valentines Day Back To School alice costume boutique halloween handmade costume teen halloween costumes mummy costume bat costume viking costume alice in wonderland costumes rainbow brite costume handmade costume pikachu costume ghost costume dora costume couples costume pocahontas costume mens halloween costume jim shore halloween angel costume gorilla costume zorro costume couples halloween costumes bear costume referee costume devil costume jester costume mens pirate costume egyptian costume tinker bell costume leg avenue costume saloon girl costume longaberger halloween werewolf costume funny costume elmo costume wizard of oz costume homemade costume couples costumes red riding hood costume halloween animated halloween costumes women gangster costume pig costume frankenstein costume Halloween
- 53. Products/ Products/Categ Volume/Revenu eCategories ories Sellers Buyers
- 55. Buyers outnumber sellers 5:1 Seller-items sold has a power law distribution Seller-revenue has a power law distribution Buyer-items bought has a power law distribution For a sample period over 1 month mean is 3 and median is 1 Buyer-spent money has a power law distribution For a sample period of 1 month mean is 98$ and median was 45$ Categories browsed - mean 10.5, median 5 ~10M new items a day, most items eventually sell, items last from a day to 30 days, most items not cataloged, some auction-some fixed price