Title:
ESTIMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/166565
Kind Code:
A1
Abstract:
An estimation device 400 includes: a weight calculation unit 421 that calculates a predetermined weight on the basis of information indicating a candidate of an unknown attribute and information regarding known attributes; a conditional-marginal-distribution calculation unit 422 that calculates, on the basis of the information in a decision tree, a value corresponding to the conditional marginal distribution of the unknown attribute under the condition that the values of some attributes are known; and an estimation unit 423 that estimates the value of the unknown attribute on the basis of the weight calculated by the weight calculation unit 421 and the value corresponding to the conditional marginal distribution calculated by the conditional-marginal-distribution calculation unit 422.
Inventors:
ITO KUNIHIRO (JP)
Application Number:
PCT/JP2022/008618
Publication Date:
September 07, 2023
Filing Date:
March 01, 2022
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G06N20/00
Other References:
NAKAMURA, KAZUAKI: "The 141st Keywords you should know. Model Inversion Attack.", THE JOURNAL OF THE INSTITUTE OF IMAGE INFORMATION AND TELEVISION ENGINEERS, vol. 75, no. 3, 1 May 2021 (2021-05-01), pages 384 - 386, XP009548565
YUJI HIGUCHI AND OTHERS: "Training data estimation attack using VAE against classification model", PROCEEDINGS OF THE 2020 CRYPTOGRAPHY AND INFORMATION SECURITY SYMPOSIUM (SCIS2020); JANUARY 28-31, 2020, IEICE, JP, 21 January 2020 (2020-01-21) - 31 January 2020 (2020-01-31), JP, pages 1 - 8, XP009549403
UNE, MASASHI: "Research trends and issues of machine learning on system security", KINYU KENKYU, vol. 38, no. 1, 22 January 2019 (2019-01-22), pages 97 - 123, XP093088996
JUN YAJIMA AND OTHERS: "A study on analysis methods for AI security vulnerabilities hidden in machine learning systems", PROCEEDINGS OF THE 2021 CRYPTOGRAPHY AND INFORMATION SECURITY SYMPOSIUM (SCIS 2021); JANUARY 19-22, 2021, IEICE, JP, 19 January 2021 (2021-01-19), JP, pages 1 - 8, XP009549404
YUJI HIGUCHI AND OTHERS: "Training data estimation attack using VAE against classification model", PROCEEDINGS OF THE 2020 CRYPTOGRAPHY AND INFORMATION SECURITY SYMPOSIUM (SCIS2020); JANUARY 28-31, 2020, IEICE, JP, 21 January 2020 (2020-01-21) - 31 January 2020 (2020-01-31), JP, pages 1 - 8, XP009549403
UNE, MASASHI: "Research trends and issues of machine learning on system security", KINYU KENKYU, vol. 38, no. 1, 22 January 2019 (2019-01-22), pages 97 - 123, XP093088996
JUN YAJIMA AND OTHERS: "A study on analysis methods for AI security vulnerabilities hidden in machine learning systems", PROCEEDINGS OF THE 2021 CRYPTOGRAPHY AND INFORMATION SECURITY SYMPOSIUM (SCIS 2021); JANUARY 19-22, 2021, IEICE, JP, 19 January 2021 (2021-01-19), JP, pages 1 - 8, XP009549404
Attorney, Agent or Firm:
BABA, Motohiro et al. (JP)
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