US 12,229,196 B2
Information processing apparatus, classification method, and storage medium
Masafumi Oyamada, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 18/274,449
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Mar. 31, 2021, PCT No. PCT/JP2021/013770
§ 371(c)(1), (2) Date Jul. 26, 2023,
PCT Pub. No. WO2022/208706, PCT Pub. Date Oct. 6, 2022.
Prior Publication US 2024/0095286 A1, Mar. 21, 2024
Int. Cl. G06F 16/906 (2019.01)
CPC G06F 16/906 (2019.01) 4 Claims
OG exemplary drawing
 
1. An information processing apparatus, comprising at least one processor, the at least one processor carrying out:
a data acquiring process of acquiring target data, which is data to be classified into one of a plurality of categories in a hierarchical structure; and
a classifying process of classifying the target data into one of the plurality of categories in accordance with (i) a matching degree indicating a degree to which the target data matches that category and (ii) an upper-level matching degree indicating a degree to which the target data matches an upper-level category of that category, wherein:
the at least one processor calculates the matching degree in accordance with an extent to which target relevant information is similar to category relevant information, the target relevant information indicating search results that range from a high-ranking search result to a low ranking search result and that are obtained by searching for information on the target data, the category relevant information indicating search results that range from a high-ranking search result to a low-ranking search result and that are obtained by searching for information on the category, and calculates the upper-level matching degree in accordance with an extent to which the target relevant information is similar to upper-level category relevant information, the upper-level category relevant information indicating search results that range from a high-ranking search result to a low-ranking search result and that are obtained by searching for information on the upper-level category; and
in calculation of the matching degree, the at least one processor calculates the matching degree in accordance with an extent to which each of the search results that are indicated by the target relevant information and the category relevant information and that range from the high-ranking search result to the low-ranking search result is similar to another search result, and in calculation of the upper-level matching degree, the at least one processor calculates the upper-level matching degree in accordance with an extent to which each of the search results that are indicated by the target relevant information and the upper-level category relevant information and that range from the high-ranking search result to the low-ranking search result is similar to another search result.