--- a +++ b/README.md @@ -0,0 +1,26 @@ +## About Dataset +### Attribute Information: +The original dataset from the reference consists of 5 different folders, each with 100 files, with each file representing a single subject/person. Each file is a recording of brain activity for 23.6 seconds. The corresponding time-series is sampled into 4097 data points. Each data point is the value of the EEG recording at a different point in time. So we have total 500 individuals with each has 4097 data points for 23.5 seconds. + +We divided and shuffled every 4097 data points into 23 chunks, each chunk contains 178 data points for 1 second, and each data point is the value of the EEG recording at a different point in time. So now we have 23 x 500 = 11500 pieces of information(row), each information contains 178 data points for 1 second(column), the last column represents the label y {1,2,3,4,5}. + +The response variable is y in column 179, the Explanatory variables X1, X2, …, X178 + +y contains the category of the 178-dimensional input vector. Specifically y in {1, 2, 3, 4, 5}: + +5 - eyes open, means when they were recording the EEG signal of the brain the patient had their eyes open + +4 - eyes closed, means when they were recording the EEG signal the patient had their eyes closed + +3 - Yes they identify where the region of the tumor was in the brain and recording the EEG activity from the healthy brain area + +2 - They recorder the EEG from the area where the tumor was located + +1 - Recording of seizure activity + +All subjects falling in classes 2, 3, 4, and 5 are subjects who did not have epileptic seizure. Only subjects in class 1 have epileptic seizure. Our motivation for creating this version of the data was to simplify access to the data via the creation of a .csv version of it. Although there are 5 classes most authors have done binary classification, namely class 1 (Epileptic seizure) against the rest. + +### Data Set Information: +The version of the dataset hosted by our repository has been removed. + +Please find the original data at https://archive.ics.uci.edu/ml/datasets/Epileptic+Seizure+Recognition \ No newline at end of file