| 摘要 |
At least one pattern-compliant character string complying with a prescribed pattern is extracted from target product information relating to a target product in a target store (S11, S12); using each pattern-compliant character string as a search keyword, the number of product hits within the target store, within the scope of product information relating to products handled by the target store, is obtained for each pattern-compliant character string (S13); and from among the one or more pattern-compliant character strings, the pattern-compliant character string with which the number of products in the target store is smallest is designated to be a product-identification character string for identifying the target product (S15). |
