SpellerSSL: Self-Supervised Learning with P300 Aggregation for Speller BCIs
SpellerSSL improves EEG-based P300 spellers by combining self-supervised learning with a specific signal aggregation strategy. The framework uses a customized U-Net for pretraining on EEG data to learn robust representations. This method enhances signal quality, leading to higher character recognition rates and significantly reducing the time needed for system calibration.