Title:
DEVICE FOR INCREASING RESOLUTION OF AGGREGATED DATA, METHOD FOR INCREASING RESOLUTION OF AGGREGATED DATA, AND PROGRAM FOR INCREASING RESOLUTION OF AGGREGATED DATA
Document Type and Number:
WIPO Patent Application WO/2021/006347
Kind Code:
A1
Abstract:
A parameter estimation unit 106 estimates a space scale parameter and a noise variance parameter on the basis of a Gaussian process model so that a function expressing a value of aggregated data by regional integration of Gaussian process becomes maximum. The Gaussian process model expresses aggregated data in which regions obtained by division of a space are associated with values, expresses a plurality of aggregated data having different division granularity, and includes the space scale parameter of a correlation function between the regions of the aggregated data and the noise variance parameter of the correlation function. In the Gaussian process model including the estimated space scale parameter and the noise variance parameter, a high-resolution data calculation unit 111 performs regional integration for the value of the aggregated data, which is subject to resolution increasing processing, with the respective regions obtained by division of the space with granularity having higher resolution than that of the subject aggregated data, to thereby calculate high resolution data in which the resolution of the subject aggregated data is increased.
Inventors:
TANAKA YUSUKE (JP)
IWATA TOMOHARU (JP)
KURASHIMA TAKESHI (JP)
TODA HIROYUKI (JP)
TANAKA TOSHIYUKI (JP)
IWATA TOMOHARU (JP)
KURASHIMA TAKESHI (JP)
TODA HIROYUKI (JP)
TANAKA TOSHIYUKI (JP)
Application Number:
PCT/JP2020/027112
Publication Date:
January 14, 2021
Filing Date:
July 10, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06N7/00; G06F16/28
Other References:
TANAKA, YUSUKE ET AL.: "Refining Coarse-grained Spatial Data using Auxiliary Spatial Data Sets with Various Granularities", ARXIV:1809.07952VL, 21 September 2018 (2018-09-21), pages 1 - 11, XP080919635, Retrieved from the Internet [retrieved on 20200819]
TANAKA, YUSUKE ET AL.: "Spatially Aggregated Gaussian Processes with Multivariate Areal Outputs", ARXIV:1907.08350V2, 19 July 2019 (2019-07-19), pages 1 - 15, XP081444475, Retrieved from the Internet [retrieved on 20200818]
TANAKA, YUSUKE ET AL.: "Spatially Aggregated Gaussian Processes with Multivariate Areal Outputs", ARXIV:1907.08350V2, 19 July 2019 (2019-07-19), pages 1 - 15, XP081444475, Retrieved from the Internet
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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