公开(公告)号：US11615132B2

公开(公告)日：2023-03-28

申请号：US17260540

申请日：2019-07-08

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Go Irie ,  Kaoru Hiramatsu ,  Kunio Kashino ,  Kiyoharu Aizawa

IPC分类号： G06F16/00 ,  G06F16/45 ,  G06F16/438 ,  G06K9/62 ,  G06V10/75

摘要： Low-dimensional feature values with which semantic factors of content are ascertained are generated from relevance between sets of two types of content.
Based on a relation indicator indicating a pair of groups indicating which groups are related to first types of content groups among second types of content groups, an initial feature value extracting unit 11 extracts initial feature values of the first type of content and the second type of content. A content pair selecting unit 12 selects a content pair by selecting one first type of content and one second type of content from each pair of groups indicated by the relation indicator. A feature value conversion function generating unit 13 generates feature conversion functions 31 of converting the initial feature values into low-dimensional feature values based on the content pair selected from each pair of groups.