“…Many machine learning approaches such as Hidden Markov Models (HMMs) [2], Decision Trees (DT) [3], Support Vector Machines (SVM) [4], Conditional Random Fields (CRFs) [5], knearest Neighbor (KNN) Ayu et al [6] were successfully used in AR studies. There are many sensors which can be used for AR problem, and some of them which were used previously are given as follows: accelerometers, gyroscopes, magnetometer, GPS, RFID, light sensor, Inertial measurement units, skin temperature, ECG, EEG, and camera [1].…”