Multichannel feature selection using information maximization with application to multichannel EEG signals

An algorithm for feature selection based on information optimization is developed. This algorithm performs subspace mapping from multi-channel signals, where network modules (NM) are used to perform the mapping for each of the channels. The algorithm is basedon maximizingthe mutual information (MI) between input and output units of each NM, and between output units of different NMs. Such formulation leads to substantial redundancy reduction in output units, in addition to extraction of higher order features from inputunits that exhibit coherence across time and/or space useful in classification problems.A number of experiments were carried to validate the performance of the proposed algorithm with verypromising results particularly in the case of multichannel EEG data analysis.