Medicine & Science in Sports & Exercise · 2015 · 109 citations · 17 references
Our algorithms developed on free-living accelerometer data were more accurate in classifying the activity type in free-living older adults than those on our algorithms developed on laboratory accelerometer data. Future studies should consider using free-living accelerometer data to train machine learning algorithms in older adults.
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The Measurement of Observer Agreement for Categorical Data
J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 76.3K citations · Full text
Understanding interobserver agreement: the kappa statistic.
Anthony J. Viera, Joanne M. Garrett · PubMed · 2005 · 7.1K citations