Patent ID: 11868956
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. A method comprising:
accessing sensor data acquired by one or more sensors, the sensor data including image data generated by a camera representing a first inventory location and indicating a first event associated with a first item and a second event associated with a second item occurring during a time period in which one or more users are in a materials handling facility;
determining, using the image data, a first hypothesis of the first event indicating that the image data represents the one or more users removing a first quantity of the first item from a first inventory location;
determining, using the image data, a second hypothesis of the first event indicating that the image data represents the one or more users removing a second quantity of the first item from the first inventory location;
determining, based at least in part on the first hypothesis and the second hypothesis, a first listing of items taken by the one or more users during the time period, the first listing of items including an identifier of the first item and an identifier of the second item;
determining a first probability value indicating a first estimation of accuracy associated with the first listing of items;
determining that the first probability value is less than a threshold;
prior to using a first algorithm, determining a first expected improvement in the first probability value associated with the first algorithm;
prior to using a second algorithm, determining a second expected improvement in the first probability value associated with the second algorithm;
selecting the first algorithm based at least in part on the first expected improvement and the second expected improvement;
determining, using the first algorithm, a third hypothesis associated with the first event, wherein determining the third hypothesis includes:
identifying a third event occurring during the time period that is related to the first event; and
determining an overall result of at least the first event and third event;

based at least in part on the third hypothesis of the first event, determining a second listing of items taken by the one or more users during the time period;
determining a second probability value indicating a second estimation of accuracy associated with the second listing of items;
determining that the second probability value is greater than or equal to the threshold; and
based at least in part on the second probability value being greater than or equal to the threshold, storing an association between the second listing of items and an account of the one or more users.