US 12,450,301 B1
Topics and sub-topics for presenting search results on a device
Phani Teja Anumanchupallik, Berkeley, CA (US); Shaunak Mishra, Jersey City, NJ (US); Sarat Chandra Vadapalli, Sammamish, WA (US); and Anirban Sengupta, Sammamish, WA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Dec. 16, 2022, as Appl. No. 18/082,632.
Int. Cl. G06F 16/20 (2019.01); G06F 16/2457 (2019.01); G06F 16/9538 (2019.01)
CPC G06F 16/9538 (2019.01) [G06F 16/24578 (2019.01)] 17 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
receiving, from a device, a query indicating that item information is requested;
determining a topic for the item information, wherein the topic provides description of a first item attribute of an item;
determining a sub-topic of the topic, wherein the sub-topic provides description of a second item attribute that is more specific than the first item attribute, wherein the sub-topic is generated based at least in part on a semantic overlap between predefined item attribute refinements and user contributed entries related to the item, wherein the semantic overlap is determined by at least:
generating a first embedding based at least in part on the predefined item attribute refinements;
generating a second embedding based at least in part on the user contributed entries related to the item; and
inputting the first embedding and the second embedding into a machine learning model that is trained to output semantic overlap existence by determining a similarity between the first embedding and the second embedding; and
causing the device to present the item information, the topic, and the sub-topic in association with the topic.