Generalized Morphological Component Analysis for EEG source separation and artifact removal
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
To remove artifacts from multi-channel electroencephalography (EEG) data, we propose the use of generalized morphological component analysis (GMCA). GMCA separates the EEG signals into sources that have different morphological characteristics. Each source is sparse in an overcomplete dictionary, which is constructed using discrete cosine transform, Daubechies wavelet basis and Dirac basis. The sources related to artifacts are then removed. Semi-simulated EEG signals of movement-related potentials trials contaminated by eye-blink and muscle artifacts are used to evaluate the algorithm's performance. The performance of GMCA is compared with those of two other blind source separation algorithms, AMUSE and EFICA. The results demonstrate that GMCA successfully removes artifacts from EEG signals and the resulting distortions in both time and frequency domains are significantly lower than those of the other algorithms.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it