Locality Preserving Semi-Supervised Canonical Correlation Analysis for Localization in Wireless Sensor Network,ERICDATA高等教育知識庫
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篇名
Locality Preserving Semi-Supervised Canonical Correlation Analysis for Localization in Wireless Sensor Network
並列篇名
Locality Preserving Semi-Supervised Canonical Correlation Analysis for Localization in Wireless Sensor Network
作者 Su-Wen ZhuXian-Huan Zeng
英文摘要
RSSI-based localization technique in Wireless Sensor Network is aimed at building a mapping between signal and physical spaces. The mapping could be overfitting when the number of paired RSSI and location data is small, and the collection of paired data is difficult, so unpaired data could be useful in improving the performance. This paper proposes the Locality Preserving Semi-Supervised Canonical Correlation Analysis (LPSemiCCA) algorithm for localization in Wireless Sensor Network, which combines PCA and CCA smoothly using a tradeoff parameter to overcome problems like sensitivity to data scale of PCA and incapability of utilizing unpaired data of CCA. The algorithm introduces similarity matrices of paired data and whole data to fit the structure of network and employs unpaired data efficiently. Locality Preserving Projection is also applied to construct the objective function in each domain, so the mapping can be calculated in condition of preserving the inner local structure of data. Experimental results in both simulated and realistic data show a higher localization accuracy of the proposed algorithm compared with LapLS, PPLCA and LapSVR.
起訖頁 175-188
關鍵詞 canonical correlation analysislocality preserving Projectionsemi-supervised learningwireless sensor networklocalization
刊名 電腦學刊  
期數 201802 (29:1期)
DOI 10.3966/199115992018022901016   複製DOI
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