Amazon patents camera system that logs activities using language models

1. A device, comprising: one or more processors; and non-transitory computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising: receiving first user input data representing a first user command to store occurrence of a visual event, the visual event associated with an activity physically performed by a user in association with an object other than the device; generating, utilizing the first user input data, an activity indicator describing the visual event from the first user command; storing the activity indicator in an activity catalog disposed on the device as one of multiple activity indicators; receiving image data representing images in a field of view of a camera to the device, wherein the image data is received in response to motion being detected; generating, utilizing the activity indicator stored in the activity catalog, a first query requesting that a language model (LM) identify the activity in association with the object and the user from the image data, wherein the LM is disposed on the device and is configured to determine results utilizing the image data as the input; determining, at the device utilizing the LM and the first query, that the image data depicts the activity being performed in association with the object and the user; storing first data indicating occurrence of the visual event in response to the activity being performed in association with the object and the user; receiving second user input data representing a natural language request associated with stored visual events; determining, utilizing the second user input data, that the natural language request is associated with the visual event; and generating, utilizing the LM, a first natural language response to the second user input data, wherein generating the first natural language response is in response to the visual event being one of the visual events from the first data.