2019
DOI: 10.1002/jnm.2577
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Gait signals classification and comparison

Abstract: Use of wireless signal technology in sensing of human gait activity is a satisfactory example of device‐free sensing and effective in medical science to detect human motion–related diseases. Some prior research showed some potential detecting process of human walking gait from wireless channel information (WCI) using wireless signals. In this paper, we present comparison of three popular features reduction methods such as principal component analysis (PCA), kernel principal component analysis (KPCA), and linea… Show more

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Cited by 8 publications
(13 citation statements)
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References 39 publications
(72 reference statements)
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“…The system works, as AP pings at 20 packets / seconds and the receiver receive the WCI of different body motions in the form of matrix H (channel matrix) of 30 x 1 [13] [14]. The system captures the CFR of 30 subcarriers and the obtained CFR gives the information regarding frequencies and number of antennas used in the sensing process.…”
Section: Resultsmentioning
confidence: 99%
“…The system works, as AP pings at 20 packets / seconds and the receiver receive the WCI of different body motions in the form of matrix H (channel matrix) of 30 x 1 [13] [14]. The system captures the CFR of 30 subcarriers and the obtained CFR gives the information regarding frequencies and number of antennas used in the sensing process.…”
Section: Resultsmentioning
confidence: 99%
“…This system can identify the particular condition of a patient efficiently [ 70 ]. The wireless signal technology successfully detects human motions and related diseases in a non-contact manner [ 71 ]. Heart rate and breathing patterns of a person are major indicators of a physical condition.…”
Section: Literature Reviewmentioning
confidence: 99%
“…The SVM algorithm is widely applied because it is applicable to both linear and non-linear data. The classification accuracy achieved by ML and DL algorithms is over 90% [ 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 ]. The average accuracy achieved by various non-contact sensing technologies to monitor health issues is shown in Figure 2 .…”
Section: Literature Reviewmentioning
confidence: 99%
“…SVM proposed by Vipnik [36] and capable of providing high performance in classification tasks than other machine learning algorithms [39]- [41]. SVM maximizes the geometrical margin and minimizes the empirical classification error that why it's called a maximum margin classifier and belongs to the family of generalized linear classification [42]. SVM creates a map of spread vectors in a high dimensional space where a maximal separating hyperplane created [43] and two parallel hyperplanes created with a maximum separating hyperplane in the middle.…”
Section: B Support Vector Machinementioning
confidence: 99%
“…k-nearest neighbor (k-NN) known as an admirable statistical machine learning algorithm and can be used for classification and regression predictive issues. k-NN is very straightforward in use and broadly use for data classification issues in the industry [42]. Measuring the distance between all the training and testing samples, the appropriate choice of the neighbors with greater distance, is the common behavior of k-NN [12].…”
Section: K-nearest Neighbormentioning
confidence: 99%