Essays about: "Yufei Wei"

Found 1 essay containing the words Yufei Wei.

  1. 1. Developing a web-based system to visualize vegetation trends by a nonlinear regression algorithm

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Yufei Wei; [2016]
    Keywords : PolyTrend; nonlinear regression algorithm; vegetation trends; Physical Geography and Ecosystem Analysis; NDVI; Web Development; Django; MATLAB; Python; Earth and Environmental Sciences;

    Abstract : Comparing with traditional linear regression methods that used to monitor vegetation trends, a nonlinear regression algorithm (PolyTrend) developed by Jamali et al. (2014) can provide more accurate information of vegetation trends by fitting a polynomial line with a degree of up to three for ASCII-formed time-series NDVI (Normalized Difference Vegetation Index) dataset of a single pixel. READ MORE