title: Cross-person activity recognition using reduced kernel extreme learning machine.
abstract: Activity recognition based on mobile embedded accelerometer is very important for developing human-centric pervasive applications such as healthcare, personalized recommendation and so on. However, the distribution of accelerometer data is heavily affected by varying users. The performance will degrade when the model trained on one person is used to others. To solve this problem, we propose a fast and accurate cross-person activity recognition model, known as TransRKELM (Transfer learning Reduced Kernel Extreme Learning Machine) which uses RKELM (Reduced Kernel Extreme Learning Machine) to realize initial activity recognition model. In the online phase OS-RKELM (Online Sequential Reduced Kernel Extreme Learning Machine) is applied to update the initial model and adapt the recognition model to new device users based on recognition results with high confidence level efficiently. Experimental results show that, the proposed model can adapt the classifier to new device users quickly and obtain good recognition performance.
authors: School of Computer Science and Technology, Xian University of Posts & Telecommunications, 710121, China. Electronic address: dengwanyu@126.com.
authors: Wan-Yu
authors: WY
authors: Deng
authors: MOEKLINNS Lab, Department of Computer Science and Technology, Xian Jiaotong University, 710049, China.
authors: Qing-Hua
authors: QH
authors: Zheng
authors: School of Computer Science and Technology, Xian University of Posts & Telecommunications, 710121, China.
authors: Zhong-Min
authors: ZM
authors: Wang
mesh_terms: D001185:Artificial Intelligence; D056667:Biometric Identification / Q000379:methods*; D006801:Humans; D008962:Models, Theoretical; D012984:Software
keywords: Activity recognition; Extreme learning machine; Reduced kernel extreme learning machine; Support vector machine