Invention Grant
- Patent Title: Apparatus, system, and method of covariance estimation based on data missing rate for information processing
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Application No.: US16296312Application Date: 2019-03-08
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Publication No.: US11216534B2Publication Date: 2022-01-04
- Inventor: Masaaki Takada , Hironori Fujisawa , Takeichiro Nishikawa
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: JPJP2018-160572 20180829
- Main IPC: G06F17/18
- IPC: G06F17/18 ; G06F17/15

Abstract:
An information processing apparatus includes a data acquisition unit that acquires data including a missing value, a missing rate calculation unit that calculates a missing rate indicating a ratio of missing values included in the data, and a covariance matrix estimation unit that estimates a covariance matrix based on the missing rate. According to the information processing apparatus, since the covariance matrix is estimated based on the missing rate, the estimation accuracy of the covariance matrix can be improved.
Public/Granted literature
- US20200073915A1 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD Public/Granted day:2020-03-05
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