Abstract: A management system (1090) includes an air conditioner (1062), a sound input unit (1064), an operation sound analyzing unit (1016), a first preprocessing unit (1011), a command extracting unit (1014), and a control unit (1017). The sound input unit (1064) is provided in a room where the air conditioner is provided and obtains sound data (SD). The operation sound analyzing unit (1016) analyzes the sound data by a predetermined analysis method so as to obtain a determination result (RE) regarding whether an abnormality exists in the air conditioner or details of the abnormality. The first preprocessing unit (1011) performs first preprocessing on the sound data. The command extracting unit (1014) extracts a command (CM) of a user from the sound data that has been subjected to the first preprocessing. The control unit (1017) controls the air conditioner on the basis of the command.

Abstract: In a document filing system, document filing method, and recording medium, an image input section inputs page image information of a document. A graphic pattern extraction section extracts a graphic pattern area from the input page image information. A graphic pattern layout classification section classifies the graphic pattern area on the basis of layout classification criteria defined in advance. An information storing section stores a layout classification classified by the graphic pattern layout classification section upon linking the layout classification to the page image information input by the image input section. A command input section gives a command to search for page image information by designating layout information of a graphic pattern in the page image information as a rectangle in a frame on a paper sheet.