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公开(公告)号：US12023173B2
公开(公告)日：2024-07-02
申请号：US16630650
申请日：2018-07-13
Applicant: Osaka University , PaMeLa, Inc. , NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
Inventor： Aya Nakae , Yasushi Naruse , Takahiro Soshi
CPC classification number: A61B5/4824 , A61B5/316 , A61B5/377
Abstract: A method is described for making determinations on or classifying the pain of an estimation subject on the basis of the brainwaves of the estimation subject. This method includes: (a) stimulating the estimation subject at a plurality of levels of stimulation intensity; (b) acquiring brainwave data for the estimation subject; (c) extracting a brainwave feature quantity from the brainwave data or the analysis data; (d) for plugging the feature quantity into a Sparse model analysis, making the feature quantity approach a quantitative level and/or a qualitative level for pain, and estimating or making a determination on a pain level. Another method is described including comparing of brainwave data or analysis data from the 2,000 msec following the earliest of an induced brainwave component, an initial-event-related voltage component, and 250 msec after a target stimulus has been applied.
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2.发明公开公开(公告)号：US20230229977A1
公开(公告)日：2023-07-20
申请号：US17928750
申请日：2021-12-27
Applicant: OSAKA UNIVERSITY , PaMeLa, Inc.
Inventor： Aya NAKAE , Koutarou NOMURA
Abstract: Provided is a system for estimating a subjective evaluation by an estimation subject. This system for estimating a subjective evaluation by an estimation subject comprises: a reception means that receives feature data of a biosignal acquired from the estimation subject; a storage means that stores a plurality of feature templates extracted from a plurality of biosignals acquired from a plurality of subjects to be modeled including a first subject to be modeled and a second subject to be modeled, or that stores a plurality of models trained using said feature templates; and an estimation means that estimates a subjective evaluation by the estimation subject on the basis of the feature data and the plurality of feature templates or the plurality of models.
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Patent Agency Ranking
公开(公告)号：US20220207425A1
公开(公告)日：2022-06-30
申请号：US17606343
申请日：2020-04-26
Applicant: Osaka University , PAMELA, Inc.
Inventor： Aya Nakae , Koutarou Nomura
IPC: G06N20/00
Abstract: The problem to be solved is to provide a system and the like for augmenting supervisory data while maintaining the relationship among a plurality supervisory data used for machine learning. The present disclosure provides a system for augmenting supervisory data used for machine learning, the system including an obtaining means that obtains a plurality of supervisory data, a first processing means that derives a covariance matrix from the plurality of supervisory data, a second processing means that decomposes the covariance matrix, and a third processing means that applies a random number to the decomposed matrix.
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公开(公告)号：US11690547B2
公开(公告)日：2023-07-04
申请号：US16634310
申请日：2018-07-27
Applicant: Osaka University , PaMeLa, Inc.
Inventor： Aya Nakae , Takahiro Soshi
CPC classification number: A61B5/165 , A61B5/316 , A61B5/377 , A61B5/4824 , G06F3/015 , G06N20/10 , G06F2218/14
Abstract: The computer implemented method makes it possible to discern, for a variety of sensations, whether a sensation is a pleasant (comfortable) sensation or a sensation of discomfort. A classifier is generated for discerning the stress or comfort/discomfort of a subject. The method comprising: a) imparting, to a subject, different stimuli under the same environment, and obtaining brain wave data or analysis data thereof for the environment; b) correlating a reaction of the subject relating to the stimulation and the difference of the brain wave data or analysis data thereof obtained under the environment; c) generating a classifier for discerning the stress or comfort/discomfort of the subject, on the basis of the correlation; and d) performing comfort/discomfort discernment using a basic step for amplifying a sample from a small stimulation.
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公开(公告)号：US20200178888A1
公开(公告)日：2020-06-11
申请号：US16634310
申请日：2018-07-27
Applicant: Osaka University , PaMeLa, Inc.
Inventor： Aya Nakae , Takahiro Soshi
Abstract: The present invention provides discernment technology that makes it possible to discern, for a variety of sensations, whether a sensation is a pleasant (comfortable) sensation or a sensation of discomfort. The present invention provides a method for generating a means for discerning the stress or comfort/discomfort of a subject, the method comprising: a) imparting, to a subject, an identical stimulation under at least two environments, and obtaining brain wave data or analysis data thereof for each environment; b) correlating a reaction of the subject relating to the stimulation and the difference of the brain wave data or analysis data thereof obtained under the at least two environments; c) generating a comfort/discomfort discernment means for discerning the stress or comfort/discomfort of the subject, on the basis of the correlation; and d) performing comfort/discomfort discernment using a basic step for amplifying a sample from a small stimulation.
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公开(公告)号：US20220211324A1
公开(公告)日：2022-07-07
申请号：US17606404
申请日：2020-04-24
Applicant: Osaka University , PaMeLa, Inc.
Inventor： Aya Nakae , Koutarou Nomura
Abstract: Provided is a method for building a model for identifying a reaction of an organism, the method comprising: acquiring a reaction data from an organism, including: acquiring a first reaction data on the organism being in the first state and stimulation is applied to the organism; acquiring a second reaction data on the organism being in the first state and no stimulation is applied to the organism; acquiring a third reaction data on the organism being in the second state and stimulation is applied to the organism; and acquiring a fourth reaction data on the organism being in the second state and no stimulation is applied to the organism; and building a model unique to the organism for identifying the reaction of the organism, based on the acquired first to fourth reaction data.
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公开(公告)号：US20200253545A1
公开(公告)日：2020-08-13
申请号：US16630650
申请日：2018-07-13
Applicant: Osaka University , NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY , PaMeLa, Inc.
Inventor： Aya Nakae , Yasushi Naruse , Takahiro Soshi
IPC: A61B5/00 , A61B5/04 , A61B5/0484
Abstract: A method is described for making determinations on or classifying the pain of an estimation subject on the basis of the brainwaves of the estimation subject. This method includes: (a) stimulating the estimation subject at a plurality of levels of stimulation intensity; (b) acquiring brainwave data for the estimation subject; (c) extracting a brainwave feature quantity from the brainwave data or the analysis data; (d) for plugging the feature quantity into a Sparse model analysis, making the feature quantity approach a quantitative level and/or a qualitative level for pain, and estimating or making a determination on a pain level. Another method is described including comparing of brainwave data or analysis data from the 2,000 msec following the earliest of an induced brainwave component, an initial-event-related voltage component, and 250 msec after a target stimulus has been applied.
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