2020
DOI: 10.3390/s20216253
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Feature Analysis of Smart Shoe Sensors for Classification of Gait Patterns

Abstract: Gait analysis is commonly used to detect foot disorders and abnormalities such as supination, pronation, unstable left foot and unstable right foot. Early detection of these abnormalities could help us to correct the walking posture and avoid getting injuries. This paper presents extensive feature analyses on smart shoes sensor data, including pressure sensors, accelerometer and gyroscope signals, to obtain the optimum combination of the sensors for gait classification, which is crucial to implement a power-ef… Show more

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Cited by 22 publications
(8 citation statements)
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“…Secondly, in order to validate the performance of the algorithm, seven additional features were added to the first scenario. The seven additional features consist of cress-factor, kurtosis, energy, skewness, spectral frequency, entropy, and zero-crossing, as defined Sunarya et al [23]. In the last scenario, feature selection of information gain was utilized to find the three best significant features then the features were applied to the algorithm.…”
Section: Resultsmentioning
confidence: 99%
“…Secondly, in order to validate the performance of the algorithm, seven additional features were added to the first scenario. The seven additional features consist of cress-factor, kurtosis, energy, skewness, spectral frequency, entropy, and zero-crossing, as defined Sunarya et al [23]. In the last scenario, feature selection of information gain was utilized to find the three best significant features then the features were applied to the algorithm.…”
Section: Resultsmentioning
confidence: 99%
“…As one of the most popular machine learning algorithms for regression and classification tasks [ 32 ], the random forest (RF) algorithm is often used to determine the importance of eigengenes [ 33 ]. To further assess the relative importance of the eight PR-DE-ERSGs used to build the model in glioma, we ran the RF algorithm.…”
Section: Methodsmentioning
confidence: 99%
“…To maintain the stability of the test results, we repeated the above analysis based on 3 sets from the TCGA database, GSE4412 and GSE43378 sets from the GEO database, and CGGA set, respectively. As one of the most popular machine learning algorithms for regression and classification tasks [32], the random forest (RF) algorithm is often used to determine the importance of eigengenes [33]. To further assess the relative importance of the eight PR-DE-ERSGs used to build the model in glioma, we ran the RF algorithm.…”
Section: Model's Performance and Stabilitymentioning
confidence: 99%
“…Fibre-optic based pressure sensing systems are less prone to hysteresis; however, these can be easily damaged when walking [65]. As an alternative, some researchers have utilised accelerometers [50], [61], [63], and inertial measurement units [49], [62] for gait analysis. The majority of these devices are large/bulky and have not been seamlessly integrated into the wearable garment, adversely impacting the comfort of the wearer and impeding movement [61]- [63].…”
Section: Introductionmentioning
confidence: 99%
“…The use of machine learning to automate processing and analysis of large volumes of gait data has become more common in recent years. Researchers have classified gait abnormalities using shallow machine learning tools such as random forest, K nearest neighbour and support vector machine learning tools [42], [50], deep neural networks such as long short term memory networks (LSTM) [53], [69] and convolutional neural networks (CNN) [70]. The use of these tools to identify gait features has typically been more successful with multi-sensor and even multi-modality data collection [42].…”
Section: Introductionmentioning
confidence: 99%