论文标题
使用机器学习和深度学习技术对人类活动进行分类
Classifying Human Activities using Machine Learning and Deep Learning Techniques
论文作者
论文摘要
人类活动识别(HAR)描述了机器识别人类行为的能力。如今,地球上的大多数人都具有健康意识,因此人们对使用智能手机或智能手表的日常活动更感兴趣,这可以帮助他们以健康的方式管理日常活动。有了这个目标,Kaggle进行了一项竞争,以根据从30个志愿者智能手机获得的惯性信号明确地对6种不同的人类活动进行分类。 HAR的主要挑战是克服基于给定数据分离人类活动的困难,使得没有两个活动重叠。在此实验中,首先,在T分布式随机邻居嵌入,然后应用各种机器学习技术,例如Logistic回归,线性SVC,内核SVM,决策树,以更好地对6种不同的人类活动分类。此外,使用原始的时间序列数据对诸如长期短期记忆(LSTM),双向LSTM,复发性神经网络(RNN)(RNN)(RNN)和门控复发单元(GRU)等深度学习技术进行了培训。最后,使用准确性,混乱矩阵,精确度和召回率之类的指标用于评估机器学习和深度学习模型的性能。实验结果证明,与其他分类器相比,深度学习中的线性支持向量分类器和深度学习中的门控复发单元为人类活动识别提供了更好的准确性。
Human Activity Recognition (HAR) describes the machines ability to recognize human actions. Nowadays, most people on earth are health conscious, so people are more interested in tracking their daily activities using Smartphones or Smart Watches, which can help them manage their daily routines in a healthy way. With this objective, Kaggle has conducted a competition to classify 6 different human activities distinctly based on the inertial signals obtained from 30 volunteers smartphones. The main challenge in HAR is to overcome the difficulties of separating human activities based on the given data such that no two activities overlap. In this experimentation, first, Data visualization is done on expert generated features with the help of t distributed Stochastic Neighborhood Embedding followed by applying various Machine Learning techniques like Logistic Regression, Linear SVC, Kernel SVM, Decision trees to better classify the 6 distinct human activities. Moreover, Deep Learning techniques like Long Short-Term Memory (LSTM), Bi-Directional LSTM, Recurrent Neural Network (RNN), and Gated Recurrent Unit (GRU) are trained using raw time series data. Finally, metrics like Accuracy, Confusion matrix, precision and recall are used to evaluate the performance of the Machine Learning and Deep Learning models. Experiment results proved that the Linear Support Vector Classifier in machine learning and Gated Recurrent Unit in Deep Learning provided better accuracy for human activity recognition compared to other classifiers.