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KEEL-dataset - data set description



This section describes main characteristics of the B1dat_2_2000 data set and its attributes:

General information

Physiological (part 2) data set
TypeTime seriesOriginReal world
Features 4(Real / Integer / Nominal)(4 / 0 / 0)
Instances1995Missing values?No

Attribute description

AttributeDomain
Lag04[-10077.0,19536.0]
Lag03[-10077.0,19536.0]
Lag02[-10077.0,19536.0]
Lag01[-10077.0,19536.0]
Lag00[-10077.0,19536.0]

Additional information

This is the second part of a multivariate data set recorded from a patient in the sleep laboratory of the Beth Israel Hospital in Boston, Massachusetts (data submitted by David Rigney and Ary Goldberger). The lines in the original data set file are spaced by 0.5 seconds. The first column is the heart rate, the second is the chest volume (respiration force), and the third is the blood oxygen concentration (measured by ear oximetry). The heart rate was determined by measuring the time between the QRS complexes in the electrocardiogram, taking the inverse, and then converting this to an evenly sampled record by interpolation. There were no premature beats - sudden changes in the heart rate are not artifacts. The respiration and blood oxygen data are given in uncalibrated A/D bits; these two sensors slowly drift with time (and are therefore occasionally rescaled by a technician) and can be detached by the motion of the patient, hence their calibration is not constant over the data set. They were converted from 250 Hz to 2 Hz data by averaging over a 0.08 second window at the times of the heart rate samples. Between roughly 4 hours 30 minutes and 4 hours 34 minutes from the start of the file the sensors were disconnected.




In this section you can download some files related to the B1dat_2_2000 data set:

  • The complete data set already formatted in KEEL format can be downloaded from herezip.gif.
  • A copy of the data set already partitioned by means of a 5-folds cross validation procedure can be downloaded from herezip.gif.
  • The header file associated to this data set can be downloaded from heretxt.png.
  • This is not a native data set from the KEEL project. It has been obtained from the The Santa Fe Time Series Competition Data. The original page where the data set can be found is: http://www-psych.stanford.edu/~andreas/Time-Series/SantaFe.html.


 
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