ESTIMATION OF ABNORMAL SENSORS
First Claim
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1. An apparatus comprising:
- a target data acquiring section operable to acquire target data serving as an examination target, the target data output by a plurality of sensors;
a calculating section operable to calculate, for each of a plurality of sensor groups that each include at least two sensors among the plurality of sensors, a degree of outlierness of the target data relative to a reference data distribution of output from the sensor group; and
an estimating section operable to estimate a sensor among the plurality of sensors to be a source of outlierness, based on a calculation result of the calculating section.
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Abstract
Provided is an estimation apparatus including a target data acquiring section operable to acquire target data serving as an examination target, the target data output by a plurality of sensors, a calculating section operable to calculate, for each of a plurality of sensor groups that each include two sensors among the plurality of sensors, a degree of outlierness of the target data relative to a reference data distribution of output from the sensor group, and an estimating section operable to estimate a sensor among the plurality of sensors to be a source of outlierness, based on a calculation result of the calculating section.
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Citations
20 Claims
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1. An apparatus comprising:
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a target data acquiring section operable to acquire target data serving as an examination target, the target data output by a plurality of sensors; a calculating section operable to calculate, for each of a plurality of sensor groups that each include at least two sensors among the plurality of sensors, a degree of outlierness of the target data relative to a reference data distribution of output from the sensor group; and an estimating section operable to estimate a sensor among the plurality of sensors to be a source of outlierness, based on a calculation result of the calculating section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus comprising:
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a reference data acquiring section operable to acquire reference data serving as a reference for output of a plurality of sensors; a distribution generating section operable to generate, for each of a plurality of sensor groups that each include at least two sensors among the plurality of sensors, a reference data distribution of output from the sensor group; and an output section that operable to output the reference data distribution generated for each of the sensor groups, to be used by an estimation apparatus that calculates a degree of outlierness of target data serving as an examination target output from the plurality of sensors to estimate sensors that are sources of outlierness. - View Dependent Claims (17)
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18. A method comprising:
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acquiring target data serving as an examination target, the target data output by a plurality of sensors; calculating, for each of a plurality of sensor groups that each include at least two sensors among the plurality of sensors, a degree of outlierness of the target data relative to a reference data distribution of output from the sensor group; and estimating a sensor to be a source of outlierness, based on a calculation result of the degree of outlierness of the target data.
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19. A computer program product comprising a non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to perform operations comprising:
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acquiring target data serving as an examination target, the target data output by a plurality of sensors; calculating, for each of a plurality of sensor groups that each include at least two sensors among the plurality of sensors, a degree of outlierness of the target data relative to a reference data distribution of output from the sensor group; and estimating a sensor to be a source of outlierness, based on a calculation result of the degree of outlierness of the target data.
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20. A computer program product comprising a non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to perform operations comprising:
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acquiring reference data serving as a reference for output of a plurality of sensors; generating, for each of a plurality of sensor groups that each include at least two sensors among the plurality of sensors, a reference data distribution of output from the sensor group; and outputting the reference data distribution generated for each sensor group.
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Specification