Recommendation device, recommendation system, recommendation method, and program

A recommendation system comprising:

• a user terminal;
• and
• a recommendation device connected to the user terminal over a network, the recommendation device evaluating each of a plurality of first products constituting an evaluation reference group and a plurality of second products belonging to a category different from that of the first products on the basis of an evaluation rule, and performing recommendation of one or a plurality of second products,
• wherein the recommendation device includes
• an evaluation reference group information acquisition unit that acquires evaluation reference group information related to the plurality of first products constituting the evaluation reference group,
• an evaluation rule acquisition unit that acquires the evaluation rule,
• a first evaluation unit that performs individual evaluation of one-to-one of each of the plurality of first products and the plurality of second products on the basis of the evaluation rule,
• a second evaluation unit that performs many-to-one overall evaluation on each of the plurality of second products for the evaluation reference group on the basis of the individual evaluation performed by the first evaluation unit, and
• a recommendation information output unit that outputs recommendation information of the plurality of second products on the basis of the overall evaluation performed by the second evaluation unit, and
• the user terminal includes
• a display unit, and
• a display control unit that causes the display unit to perform a display based on the recommendation information, on the basis of the recommendation information acquired from the recommendation device.

A recommendation method of evaluating each of a plurality of first products constituting an evaluation reference group and a plurality of second products belonging to a category different from that of the first products on the basis of an evaluation rule, and performing recommendation of one or a plurality of second products, the recommendation method comprising:

• an evaluation reference group information acquisition step of acquiring evaluation reference group information related to the plurality of first products constituting the evaluation reference group;
• an evaluation rule acquisition step of acquiring the evaluation rule;
• a first evaluation step of performing individual evaluation of one-to-one of each of the plurality of first products and the plurality of second products on the basis of the evaluation rule;
• a second evaluation step of performing many-to-one overall evaluation on each of the plurality of second products for the evaluation reference group on the basis of the individual evaluation performed in the first evaluation step;
• and
• a recommendation information output step of outputting recommendation information of the plurality of second products on the basis of the overall evaluation performed in the second evaluation step.

Non-transitory computer recording medium storing a program that causes a computer to execute a process of evaluating each of a plurality of first products constituting an evaluation reference group and a plurality of second products belonging to a category different from that of the first products on the basis of an evaluation rule, and performing recommendation of one or a plurality of second products, the program causing the computer to execute a process including:

• an evaluation reference group information acquisition step of acquiring evaluation reference group information related to the plurality of first products constituting the evaluation reference group;
• an evaluation rule acquisition step of acquiring the evaluation rule;
• a first evaluation step of performing individual evaluation of one-to-one of each of the plurality of first products and the plurality of second products on the basis of the evaluation rule;
• a second evaluation step of performing many-to-one overall evaluation on each of the plurality of second products for the evaluation reference group on the basis of the individual evaluation performed in the first evaluation step;
• and
• a recommendation information output step of outputting recommendation information of the plurality of second products on the basis of the overall evaluation performed in the second evaluation step.