Abstract: The present invention aims to provide an information processing device, an information processing method, and the like capable of reducing labor of associating an item for sale with a category. The information processing device acquires an image specified by a user. The information processing device extracts a feature value of the specified image. The information processing device acquires category information corresponding to an item for sale represented by the specified image. The information processing device searches for images similar to the specified image, based on the extracted feature value. The information processing device causes at least one of the found images to be displayed as a search result. The information processing device, when the user has selected any one image from the displayed search result, makes a storage unit store the acquired category information in association with sale item identification information corresponding to the selected image.

Abstract: In an information processing system 1, a display controlling unit 2 displays, on a terminal device, a first form containing fields. An accepting unit 3 accepts, from a user, an entry in the fields contained in the first form. A determining unit 4 determines whether or not each of the entered fields contained in the first form satisfies a determination condition that is associated in advance with each field. When there is an unsatisfied field that fails to satisfy the determination condition among the entered fields contained in the first form, the display controlling unit 2 displays a second form that gives a higher priority to the unsatisfied field and lays out the unsatisfied field above a satisfied field satisfying the determination condition among the entered fields contained in the first form, and, the accepting unit accepts, from the user, an entry in the fields that is contained in the second form.