Information presentation device, information presentation method, and computer program product

An information presentation method that is executed by an information presentation device that presents a recommendation reason including information on a combined effect of a first product and a second product, when recommending the second product that goes well with the first product a user is referring to, the information presentation method comprising:

• extracting a first group of documents relating to the first product from a group of documents to be searched, and calculating a first score indicating a relation with the first product, for each word included in the first group of documents, using the information presentation device;
• extracting a second group of documents relating to the second product from the group of documents to be searched, and calculating a second score indicating a relation with the second product, for each word included in the second group of documents, using the information presentation device;
• extracting a third group of documents relating to the first product and the second product from the group of documents to be searched, and calculating a third score indicating a relation with both the first product and the second product, for each word included in the third group of documents, using the information presentation device;
• subtracting the first score and the second score from the third score, to calculate a total score for each word included in the third group of documents, using the information presentation device;
• and
• presenting at least one of one or more important words selected according to a predetermined criterion based on the total score, and one or more pieces of text including important words in the third group of documents, as the recommendation reason, using the information presentation device.

A computer program product comprising a non-transitory computer-readable medium including programmed instructions, the instructions causing a computer to execute:

• extracting a first group of documents relating to a first product from a group of documents to be searched, and calculating a first score indicating a relation with the first product, for each word included in the first group of documents;
• extracting a second group of documents relating to a second product from the group of documents to be searched, and calculating a second score indicating a relation with the second product, for each word included in the second group of documents;
• extracting a third group of documents relating to the first product and the second product from the group of documents to be searched, and calculating a third score indicating a relation with both the first product and the second product, for each word included in the third group of documents;
• subtracting the first score and the second score from the third score, to calculate a total score for each word included in the third group of documents;
• and
• presenting at least one of one or more important words selected according to a predetermined criterion based on the total score, and one or more pieces of text including important words in the third group of documents, as a recommendation reason including information on a combined effect of the first product and the second product.