Abstract As a typical representative of big data, geographic spatiotemporal big data present new features especially the non-stationary feature, bringing new challenges to mine correlation information. However, representation of instantaneous information is the main bottleneck for non-stationary data, but the traditional non-stationary analysis methods are limited by Heisenberg's uncertainty principle. Therefore, we firstly represent instantaneous frequency of geographic spatiotemporal big data based on Hilbert–Huang transform to overcome traditional methods' weakness. Secondly, we propose absolute entropy correlation analysis method based on KL divergence. Finally, we select five geographic factors to certify that the absolute entropy correlation analysis method is effective and distinguishable.
Geographic spatiotemporal big data correlation analysis via the Hilbert-Huang transformation
Weijing Song,Lizhe Wang,Yang Xiang,Albert Y. Zomaya
Published 2017 in Journal of computer and system sciences (Print)
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- Publication year
2017
- Venue
Journal of computer and system sciences (Print)
- Publication date
2017-11-01
- Fields of study
Geography, Computer Science, Mathematics
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