Abstract: A model variable candidate generation device generating explanatory variable candidates to be used as candidates for an explanatory variable in generation of a prediction model includes: a data input unit inputting analysis data each entry having one or more items and the items having item values; a first item determination unit preliminarily setting properties of the items included in the analysis data as first item properties; a data property determination unit determining data properties being of the analysis data on the basis of the first item properties; a second item determination unit determining properties of the items included in the analysis data as second item properties on the basis of the data properties of the analysis data; and a variable candidate generation unit generating the explanatory variable candidates by selecting from the items or processing the items on the basis of the second item properties.

Abstract: A model variable candidate generation device generating explanatory variable candidates to be used as candidates for an explanatory variable in generation of a prediction model includes: a data input unit inputting analysis data each entry having one or more items and the items having item values; a first item determination unit preliminarily setting properties of the items included in the analysis data as first item properties; a data property determination unit determining data properties being of the analysis data on the basis of the first item properties; a second item determination unit determining properties of the items included in the analysis data as second item properties on the basis of the data properties of the analysis data; and a variable candidate generation unit generating the explanatory variable candidates by selecting from the items or processing the items on the basis of the second item properties.

Abstract: A centrifugal separator comprises a follow rotor which is formed with a row of pores arranged circumferentially of the rotor and perforated, cylindrical film detachably received on the inner peripheral surface of the rotor. A mass of a semifluid material positioned within the film is splashed on to the inner surface of the film by a centrifugal force so that the liquid content of the material is passed through the film. The film is radially contracted by the liquid pressure developed between the film and the inner peripheral surface of the rotor and forms a cylindrical interstice between the film and the rotor, providing an additional filter medium through which the liquid is filtered and withdrawn from the pores. The rotor may be closed throughout its area and have a free longitudinal end from which to allow the liquid to withdraw. The centrifugal separator finds an application as a juice extractor if provided with a grating disc.

Abstract: Machine adapted to be incorporated in a refrigeration chamber of a refrigerator to make ice cream, comprising means for containing an ice cream mix in an agitation vessel and agitating the same, and means for causing an air layer on the outer surface of the agitation vessel to move. The provision of the air layer moving means is effective to promote heat exchange between the outer surface of the agitation vessel and the cold air in the refrigeration chamber by forcedly moving the air layer which might otherwise interfere with the exchange of heat between the outer surface of the agitation vessel and the cold air in the refrigeration chamber.