Abstract: A non-transitory storage medium storing a program causes a computer to convert a first document into a document segmented into morphemes and to delete overlapping morphemes to generate a first summary, to convert a second document determined to be relevant to the first document into a document segmented into morphemes and to delete overlapping morphemes to generate a second summary. The program causes the computer to count the number of matching morphemes between the first summary obtained by deleting the overlapping morphemes from the morphemes of the first document and the second summary obtained by deleting the overlapping morphemes from the morphemes of the second document, to determine relevance between the first document and the second document on the basis of a result of the counting processing and to extract part or all of the second document for which the relevance to the first document satisfies a predetermined condition.

Abstract: A non-transitory storage medium storing a program causes a computer to convert a first document into a document segmented into morphemes and to delete overlapping morphemes to generate a first summary, to convert a second document determined to be relevant to the first document into a document segmented into morphemes and to delete overlapping morphemes to generate a second summary. The program causes the computer to count the number of matching morphemes between the first summary obtained by deleting the overlapping morphemes from the morphemes of the first document and the second summary obtained by deleting the overlapping morphemes from the morphemes of the second document, to determine relevance between the first document and the second document on the basis of a result of the counting processing and to extract part or all of the second document for which the relevance to the first document satisfies a predetermined condition.