Interval-valued aggregation functions based on moderate deviations applied to Motor-Imagery-Based Brain Computer Interface

In this work we study the use of moderate deviation functions to measure similarity and dissimilarity among a set of given interval-valued data. To do so, we introduce the notion of interval-valued moderate deviation function and we study in particular those interval-valued moderate deviation functions which preserve the width of the input intervals. Then, we study how to apply these functions to construct interval-valued aggregation functions. We have applied them in the decision making phase of two Motor-Imagery Brain Computer Interface frameworks, obtaining better results than those obtained using other numerical and intervalar aggregations.

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Datasets


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Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
EEG Left/Right hand BCI Competition IV 2a Traditional BCI Framework + Reichenbach Interval-valued moderate deviation Accuracy 82.51 # 3
EEG 4 classes BCI Competition IV 2a Traditional BCI Framework + Lukasiweicz Interval-valued moderate deviation Accuracy 69.43 # 4

Methods