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1. 发明申请

US20220207425A1 SYSTEM, METHOD, AND PROGRAM FOR AUGMENTING TRAINING DATA USED FOR MACHINE LEARNING 有权
公开(公告)号：US20220207425A1
公开(公告)日：2022-06-30
申请号：US17606343
申请日：2020-04-26
申请人： Osaka University , PAMELA, Inc.
发明人： Aya Nakae , Koutarou Nomura
IPC分类号： G06N20/00
摘要： 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.

2. 发明申请

US20190223783A1 PAIN ESTIMATING DEVICE, PAIN ESTIMATING METHOD, AND PAIN CLASSIFICATION 审中-公开
公开(公告)号：US20190223783A1
公开(公告)日：2019-07-25
申请号：US16326789
申请日：2017-08-22
申请人： Osaka University
发明人： Aya Nakae
IPC分类号： A61B5/00 , A61B5/0484 , A61B5/04 , G06K9/00
摘要： Provided is a pain estimating device with which it is possible to estimate objectively and accurately pain being experienced by a subject. A pain estimating device 110 estimates the magnitude of pain being experienced by a subject, on the basis of brainwaves of the subject, and is provided with: a measurement unit 111 which acquires a plurality of items of brainwave data or analysis data thereof by measuring brainwaves from the subject a plurality of times; and an estimation unit 112 which estimates the relative magnitude of the pain being experienced when the brainwave measurements were conducted a plurality of times, from the plurality of items of brainwave data or the analysis data thereof (for example the amplitude), on the basis of the linearity of a relationship between the brainwave data or the analysis data thereof (for example the amplitude) and the pain. The present invention also provides a pain estimating method and device with which it is possible to estimate objectively and accurately pain being experienced by a subject, and to classify simply the quality and quantity thereof. The present invention also provides a method for generating a pain classification value for classifying pain being experienced by the subject, on the basis of brainwaves of the subject.

3. 发明授权

US12023173B2 Pain classification and momentary-pain determination using sparse modeling 有权
公开(公告)号：US12023173B2
公开(公告)日：2024-07-02
申请号：US16630650
申请日：2018-07-13
申请人： Osaka University , PaMeLa, Inc. , NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
发明人： Aya Nakae , Yasushi Naruse , Takahiro Soshi
IPC分类号： A61B5/00 , A61B5/316 , A61B5/377
CPC分类号： A61B5/4824 , A61B5/316 , A61B5/377
摘要： 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.

4. 发明申请

US20210267541A1 PAIN MEASUREMENT DEVICE AND PAIN MEASUREMENT SYSTEM 有权
公开(公告)号：US20210267541A1
公开(公告)日：2021-09-02
申请号：US17201303
申请日：2021-03-15
申请人： Osaka University
发明人： Aya Nakae
IPC分类号： A61B5/00 , A61B10/00 , A61B5/369 , A61B5/377
摘要： This pain measurement device for measuring pain experienced by a subject is provided with a determination unit for determining a reference stimulation intensity corresponding to reference pain of the subject, on the basis of a relationship between pain levels reported by the subject and stimulation intensities applied to the subject, and a measurement unit which compares electroencephalographic data measured from the subject and reference electroencephalographic data corresponding to the reference stimulation intensity to measure pain experienced by the subject when the electroencephalographic data is measured.

5. 发明授权

US11922277B2 Pain determination using trend analysis, medical device incorporating machine learning, economic discriminant model, and IoT, tailormade machine learning, and novel brainwave feature quantity for pain determination 有权
公开(公告)号：US11922277B2
公开(公告)日：2024-03-05
申请号：US16628989
申请日：2018-07-06
申请人： Osaka University
发明人： Aya Nakae
IPC分类号： G06N3/04 , G06N3/004 , G06N3/045 , G06N20/00
CPC分类号： G06N20/00 , G06N3/004 , G06N3/045
摘要： A high accuracy information extracting device construction system includes: a feature quantity extraction expression list generating unit for generating a feature quantity extraction expression list; a feature quantity calculating unit for calculating feature quantities of teacher data by means of respective feature quantity extracting expressions; a teacher data supply unit for supplying teacher data; an evaluation value calculating unit for generating information extracting expressions by means of machine learning on the basis of the calculated feature quantities of teacher data and the teacher data, and calculating evaluation values for the respective feature quantity extracting expressions; and a synthesis unit for constructing a high accuracy information extracting device using T weak information extracting parts F(X)t output from the evaluation value calculating unit 15 and confidence levels Ct corresponding thereto.

6. 发明授权

US11779269B2 Pain estimating device, pain estimating method, and pain classification 有权
公开(公告)号：US11779269B2
公开(公告)日：2023-10-10
申请号：US16374002
申请日：2019-04-03
申请人： Osaka University
发明人： Aya Nakae
IPC分类号： A61B5/00 , A61B5/316 , A61B5/369 , A61B5/377
CPC分类号： A61B5/4824 , A61B5/316 , A61B5/369 , A61B5/377 , A61B5/7264 , G06F2218/14
摘要： Provided is a pain estimating device with which it is possible to estimate objectively and accurately pain being experienced by a subject. A pain estimating device 110 estimates the magnitude of pain being experienced by a subject, on the basis of brainwaves of the subject, and is provided with: a measurement unit 111 which acquires a plurality of items of brainwave data or analysis data thereof by measuring brainwaves from the subject a plurality of times; and an estimation unit 112 which estimates the relative magnitude of the pain being experienced when the brainwave measurements were conducted a plurality of times, from the plurality of items of brainwave data or the analysis data thereof (for example the amplitude), on the basis of the linearity of a relationship between the brainwave data or the analysis data thereof (for example the amplitude) and the pain. The present invention also provides a pain estimating method and device with which it is possible to estimate objectively and accurately pain being experienced by a subject, and to classify simply the quality and quantity thereof. The present invention also provides a method for generating a pain classification value for classifying pain being experienced by the subject, on the basis of brainwaves of the subject.

7. 发明申请

US20220211324A1 REFERENCE STIMULUS 有权
公开(公告)号：US20220211324A1
公开(公告)日：2022-07-07
申请号：US17606404
申请日：2020-04-24
申请人： Osaka University , PaMeLa, Inc.
发明人： Aya Nakae , Koutarou Nomura
IPC分类号： A61B5/00 , A61B5/377 , A61B5/372 , G16H50/50
摘要： 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.

8. 发明申请

US20200253545A1 PAIN CLASSIFICATION AND MOMENTARY-PAIN DETERMINATION USING SPARSE MODELING 审中-公开
公开(公告)号：US20200253545A1
公开(公告)日：2020-08-13
申请号：US16630650
申请日：2018-07-13
申请人： Osaka University , NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY , PaMeLa, Inc.
发明人： Aya Nakae , Yasushi Naruse , Takahiro Soshi
IPC分类号： A61B5/00 , A61B5/04 , A61B5/0484
摘要： 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.

9. 发明公开

US20240273408A1 PAIN DETERMINATION USING TREND ANALYSIS, MEDICAL DEVICE INCORPORATING MACHINE LEARNING, ECONOMIC DISCRIMINANT MODEL, AND IOT, TAILORMADE MACHINE LEARNING, AND NOVEL BRAINWAVE FEATURE QUANTITY FOR PAIN DETERMINATION 审中-公开
公开(公告)号：US20240273408A1
公开(公告)日：2024-08-15
申请号：US18441594
申请日：2024-02-14
申请人： Osaka University
发明人： Aya Nakae
IPC分类号： G06N20/00 , G06N3/004 , G06N3/045
CPC分类号： G06N20/00 , G06N3/004 , G06N3/045
摘要： A computer implemented method of monitoring pain of an object being estimated based on brainwave data of the object includes a) reading out, by a processor, from a memory a plurality of groups of the brainwave data respectively corresponding to a plurality of levels of stimulations to the object applied by a stimulation system, wherein each group of brainwave data are measured by using an electroencephalograph; b) dividing each group of brainwave data into subgroups each having a first predetermined time frame and obtaining a temporal change of mean values of respective subgroups of the brainwave data, wherein each of the mean values is calculated based on the brainwave data of the first predetermined time frame; and c) evaluating or monitoring a level of pain of the object being estimated from the brainwave data based on the temporal change of the mean values.

10. 发明授权

US11690547B2 Discernment of comfort/discomfort 有权
公开(公告)号：US11690547B2
公开(公告)日：2023-07-04
申请号：US16634310
申请日：2018-07-27
申请人： Osaka University , PaMeLa, Inc.
发明人： Aya Nakae , Takahiro Soshi
IPC分类号： A61B5/16 , G06N20/10 , A61B5/00 , G06F3/01 , A61B5/316 , A61B5/377
CPC分类号： A61B5/165 , A61B5/316 , A61B5/377 , A61B5/4824 , G06F3/015 , G06N20/10 , G06F2218/14
摘要： 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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