This patent document describe various ranking factor used by Yi Bei. For each ranking factor, Yi Bei will create a scoring rule and then use them to get the total ranking score.
A relevance score that measures the relevance between a search condition in a consumer search request and a product list;
Listing quality score, based on the listing history data of similar products, measures the possibility that listed products are sold;
Business rule scoring is based on the evaluation of one or more business rules of the seller to determine whether the list is upgraded or downgraded.
For example, when determining the quality of listing, Yi Bei may consider factors such as price, product status, mode and cost of transportation, duration of product listing, conversion rate of all previous products or specific products of the seller, and rating of the seller (for example, based on feedback provided by the buyer).
The following are related contents in patent documents, which can help sellers to further understand the important factors that affect Yi Bei's search ranking:
1, correlation score
EBay scores the relevance according to the analysis of list titles, product descriptions and consumer interaction data similar to the list in search results.
2, list quality score
EBay will consider various attributes of product listing, but the price and transportation cost of the product are the most important.
For example, if a list sells a TV set for $65,438+000, Yi Bei will compare the price of the list with the price of similar TV sets sold before. If the listing price is lower than the average price of similar TV sets recently sold (such as $200), the listing quality score will reflect that the listing price of the product is good.
3. Business rule scoring
EBay will upgrade or downgrade the listed items according to specific product attributes or seller attributes. For example, if the product has a free shipping option, the list will be upgraded. Similarly, if the seller's quality score is low (depending in part on the buyer's feedback), the seller's product list may be downgraded.
When business rules are transparent and known to both buyers and sellers, upgrading or demotion may be used by Yi Bei to encourage some behaviors of sellers. According to the description under the commercial rules, Yi Bei has some reward and punishment policies to encourage sellers to provide free delivery. It is worth noting that Yi Bei has been encouraging sellers to provide a relaxed return policy recently.
Patent documents show that different categories of factors affecting the ranking will be different. For example, Yi Bei said, "For some categories of products, such as antiques and jewelry, the trust of sellers may be a more important factor in ranking, because there may be more fraud in such products."
EBay patent documents also show that demand factors will soon affect the ranking, including transaction volume, page views, search impressions and watch lists. For auction lists and fixed price lists with only one quantity, the demand factor can be evaluated based on the number of views, the number of bids or the number of observation lists. It may also be listed based on the performance of similar products.