Title:
RECOMMENDATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/163203
Kind Code:
A1
Abstract:
This server 10 comprises: a diversity score calculation unit 117 for calculating, for each second content, a diversity score that progressively becomes higher in correspondence to a decrease in the degree of similarity between first content selected as the content the possibility of which being favored by a relevant user is high and second content other than the first content among a plurality of content; a recommendation degree calculation unit 118 for calculating, for each candidate content, the degree of recommendation to the relevant user on the basis of a user score obtained on the basis of the user attribute information of the relevant user, the user score indicating the degree of preference of the relevant user to each candidate content, and the diversity score for each second content; and a determination unit 119 for determining the content to be presented to the relevant user, on the basis of the degree of recommendation calculated by the recommendation degree calculation unit 118.
Inventors:
AIBA KUNIHIRO (JP)
ONO SOUHEI (JP)
ONO SOUHEI (JP)
Application Number:
PCT/JP2021/046811
Publication Date:
August 04, 2022
Filing Date:
December 17, 2021
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
G06F16/9035
Foreign References:
| CN111708950A | 2020-09-25 |
Other References:
TAKAYUKI AKIYAMA, KIYOHIRO OBARA, MASAAKI TANIZAKI: "Verification of Serendipitous Recommender System.", IEICE TECHNICAL REPORT, DENSHI JOUHOU TSUUSHIN GAKKAI, JP, vol. 109, no. 272 (LOIS2009-52), 5 November 2009 (2009-11-05), JP , pages 81 - 87, XP009538897, ISSN: 0913-5685
CHIHIRO ONO, HIDEKI ASOH, YOICHI MOTOMURA: "Technologies and Research Issues for Recommendation.", JOURNAL OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, DENSHI JOHO TSUSHIN GAKKAI, TOKYO., JP, vol. 94, no. 4, 1 April 2011 (2011-04-01), JP , pages 310 - 315, XP009538809, ISSN: 0913-5693
CHIHIRO ONO, HIDEKI ASOH, YOICHI MOTOMURA: "Technologies and Research Issues for Recommendation.", JOURNAL OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, DENSHI JOHO TSUSHIN GAKKAI, TOKYO., JP, vol. 94, no. 4, 1 April 2011 (2011-04-01), JP , pages 310 - 315, XP009538809, ISSN: 0913-5693
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Download PDF: