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posted an update about 7 hours ago
Can a Jev-style decision interface work on EEG when the questions are asked in words? In our tests, only for questions the model was trained on.
A small head over frozen EEG features (encode a window once, answer several typed questions about it) was asked each question by a question number, a label template or a description. On SSVEP (BETA, 70 people), asking a seen question with a label template instead of its number cost −5.96 pp of balanced accuracy on a plain spectrum (interval −6.84 to −5.08 pp), the 2 pp margin not met. On flicker frequencies the head was never trained on, it reached 28.7%, where training-free CCA reached 80.9% (chance 12.5%).
Results and limits: https://bci.report/topics/questions-in-language/
What "Jev-style" means here: https://bci.report/jev-style/
Query the numbers over MCP: https://huggingface.co/spaces/Twu31/bci-report-explorer
Related write-up: https://huggingface.co/blog/Twu31/one-eeg-encoder-several-questions published an article about 21 hours ago
Can one EEG encoder answer several questions? updated a dataset about 23 hours ago
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