Exact bounds saved 17.7% of pair calculations and kept all full reader decisions in eight SEEG recordings with clipped pair scores

Exact score bounds reduced pair calculations for fixed SEEG task-state readers in eight public recordings. Bounds clipped each pair score to its early-training range. An exact subset program chose a fixed pair order from training windows only. On 1,348 later windows, the method used 6.583 of eight pairs on average. It saved 17.71% of pair calculations, with a descriptive 95% person interval of 15.42% to 20.03%. All stopped decisions matched the full clipped reader. Clipping changed two decisions from the original reader. The exact order gave almost the same later cost as a simple width order. In nine local timing repeats, early processing took 3.24 times the full batch time and 0.88 times the full serial time. Fewer calculations therefore did not show faster batch processing. The package preserves raw selected buffers, fixed models, proofs, exact results, code, three figures, source hashes, and retrieval instructions. Independent rational checks passed, and a new process reproduced all 21 numerical files exactly. These reused, response-aligned task windows do not establish online control, device energy savings, or stimulation benefit.

stereoelectroencephalography · brain-computer interfaces · exact bounds · early stopping · signal processing · fixed classifiers