Method and media for duplicate detection in an electronic marketplace

摘要: A shared “universal” virtual shopping cart (“the cart”) may be provided by a host to enable information sharing between multiple disparate electronic marketplaces various merchants. The obtain user via the improve interactions with user. recommend an item that is offered at lower price and related retained in user's cart. also items based on purchase history, such as complementary (e.g., up-sell items) other users recommend. In some aspects, compile best selling lists data from marketplaces. perform specific operations indicate duplicate of previous monitor and/or available quantities