loading...| Preferred Name |
feature |
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| Synonyms |
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| Definitions |
It is an auxiliary data analytics related to an "epoch" (pointed by a Marker) in the raw data (DataBlock) that describes an event of interest in the analysis (its semantics are captured by a ResponseTag). In practice, a set of FeatureParameters characterize the content of a ResponseTag. A FeatureParameter is commonly formally defined by an underlying mathematical/statistical Model, which describes how it is calculated. FeatureParameters are: (*) Relevant computed data (used-by or built) in developed algorithms/Models that analyse the raw dataset (DataBlock). (*) Pinpointed for each "epoch" of the raw dataset recording (DataBlock). An epoch is characterized by a ResponseTag marker; the temporal tagging of epochs (frequency-based, duration/interval, timestamped) depend on both the nature of the data and the analytical Models used over them. Thus, most of the features are considered to be transient information objects, i.e., they have an expiration date. |
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| ID |
https://w3id.org/BCI-ontology#FeatureParameter |
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| change note |
Status: *STABLE* |
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| definition |
It is an auxiliary data analytics related to an "epoch" (pointed by a Marker) in the raw data (DataBlock) that describes an event of interest in the analysis (its semantics are captured by a ResponseTag). In practice, a set of FeatureParameters characterize the content of a ResponseTag. A FeatureParameter is commonly formally defined by an underlying mathematical/statistical Model, which describes how it is calculated. FeatureParameters are: (*) Relevant computed data (used-by or built) in developed algorithms/Models that analyse the raw dataset (DataBlock). (*) Pinpointed for each "epoch" of the raw dataset recording (DataBlock). An epoch is characterized by a ResponseTag marker; the temporal tagging of epochs (frequency-based, duration/interval, timestamped) depend on both the nature of the data and the analytical Models used over them. Thus, most of the features are considered to be transient information objects, i.e., they have an expiration date. |
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| describedby | ||
| example |
Some feature parameters for mfSSVEP (Steady-State Visually Evoked Potential with Vision Field Sensitivity) data sets for glaucoma patients are: (*) CCA correlations between the mfSSVEP signals and the set of reference signals (sinusoids or binary sequences) derived from each visual stimulus (one per each visual stimulus). (*) CCA coefficients of the reference signals that yield maximum correlation with the mfSSVEP signals (one per each reference signal and each visual stimulus). (*) Spectral Power Density (PSD) of the optimal combination of mfSSVEP signals maximally correlated with the set of reference signals derived from each visual stimulus (one per each visual stimulus). Note: the above parameters may be the differences between the PSDs when the visual stimulus was presence and absent from the stimuli patterns. |
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| isDefinedBy | ||
| modified |
2018-04-16T03:27:00 |
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| part |
AnnotationTag |
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| preferred label |
feature |
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| prefixIRI |
bci:FeatureParameter |
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| scope note |
This class is intended to be the root of a class hierarchy. Domain-specific applications can extend this class hierarchy for their own purposes to describe any FeatureParameter entities. |
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| StillImage |
FeatureParameter.png |
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| title |
FeatureParameter |
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| disjointWith | ||
| subClassOf |
http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#FormalEntity |