The present application relates to a server for determining whether or not to adhere to a drug, the server comprising: a server communication unit for receiving a video photographed by a wearable device; a server storage unit for storing a model for determining whether to adhere to a drug, wherein the model includes a first model corresponding to a first drug adherence-related object and a second model corresponding to a second drug adherence-related object; and a server control unit for determining whether the user adheres to a drug based on the video received through the server communication unit, wherein the server control unit includes a first category related to the first drug adherence-related object and the second drug adherence-related Classifying the category of the video into one of the second categories of the object, and when the category of the video is classified into the first category, determining whether the user adheres to the drug using the first model and the video, When the category of the video is classified into the second category, it is determined whether or not the user adheres to the drug using the second model and the video.
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