FSELM: fusion semi-supervised extreme learning machine for indoor localization with Wi-Fi and Bluetooth fingerprints
Jiang, Xinlong1,2,3; Chen, Yiqiang1,2,3; Liu, Junfa1,2,3; Gu, Yang1,2,3; Hu, Lisha4
刊名SOFT COMPUTING
2018-06-01
卷号22期号:11页码:3621-3635
关键词Fusion semi-supervised learning Extreme Learning Machine Indoor localization Wi-Fi and Bluetooth fingerprints
ISSN号1432-7643
DOI10.1007/s00500-018-3171-4
英文摘要Recently, the problem of indoor localization based on WLAN signals is attracting increasing attention due to the development of mobile devices and the widespread construction of networks. However, no definitive solution for achieving a low-cost and accurate positioning system has been found. In most traditional approaches, solving the indoor localization problem requires the availability of a large number of labeled training samples, the collection of which requires considerable manual effort. Previous research has not provided a means of simultaneously reducing human calibration effort and improving location accuracy. This paper introduces fusion semi-supervised extreme learning machine (FSELM), a novel semi-supervised learning algorithm based on the fusion of information from Wi-Fi and Bluetooth Low Energy (BLE) signals. Unlike previous semi-supervised methods, which consider multiple signals individually, FSELM fuses multiple signals into a unified model. When applied to sparsely calibrated localization problems, our proposed method is advantageous in three respects. First, it can dramatically reduce the human calibration effort required when using a semi-supervised learning framework. Second, it utilizes fused Wi-Fi and BLE fingerprints to markedly improve the location accuracy. Third, it inherits the beneficial properties of ELMs with regard to training and testing speeds because the input weights and biases of hidden nodes can be generated randomly. As demonstrated by experimental results obtained on practical indoor localization datasets, FSELM possesses a better semi-supervised manifold learning ability and achieves higher location accuracy than several previous batch supervised learning approaches (ELM, BP and SVM) and semi-supervised learning approaches (SELM, S-RVFL and FS-RVFL). Moreover, FSELM needs less training and testing time, making it easier to apply in practice. We conclude through experiments that FSELM yields good results when applied to a multi-signal-based semi-supervised learning problem. The contributions of this paper can be summarized as follows: First, the findings indicate that effective multi-data fusion can be achieved not only through data-layer fusion, feature-layer fusion and decision-layer fusion but also through the fusion of constraints within a model. Second, for semi-supervised learning problems, it is necessary to combine the advantages of different types of data by optimizing the model's parameters.
资助项目National Natural Science Foundation of China[61572471] ; National Natural Science Foundation of China[61472399] ; National Natural Science Foundation of China[61572004] ; Science and Technology Planning Project of Guangdong Province, China[2015B010105001]
WOS研究方向Computer Science
语种英语
出版者SPRINGER
WOS记录号WOS:000431669200013
内容类型期刊论文
源URL[http://119.78.100.204/handle/2XEOYT63/5288]  
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Chen, Yiqiang
作者单位1.Chinese Acad Sci, Inst Comp Technol, Beijing, Peoples R China
2.Beijing Key Lab Mobile Comp & Pervas Device, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Hebei Univ Econ & Business, Inst Informat Technol, Shijiazhuang, Hebei, Peoples R China
推荐引用方式
GB/T 7714
Jiang, Xinlong,Chen, Yiqiang,Liu, Junfa,et al. FSELM: fusion semi-supervised extreme learning machine for indoor localization with Wi-Fi and Bluetooth fingerprints[J]. SOFT COMPUTING,2018,22(11):3621-3635.
APA Jiang, Xinlong,Chen, Yiqiang,Liu, Junfa,Gu, Yang,&Hu, Lisha.(2018).FSELM: fusion semi-supervised extreme learning machine for indoor localization with Wi-Fi and Bluetooth fingerprints.SOFT COMPUTING,22(11),3621-3635.
MLA Jiang, Xinlong,et al."FSELM: fusion semi-supervised extreme learning machine for indoor localization with Wi-Fi and Bluetooth fingerprints".SOFT COMPUTING 22.11(2018):3621-3635.
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