Brazilian meteorological temperature and United States meteorological temperature data sets

This dataset image is based on the monthly average temperatures collected at 299 stations of the Brazilian Meteorological Temperature Dataset. Each station in the dataset image is linked to the eight nearest stations in its vicinity. Based on the data in the Brazilian temperature dataset, we draw a graph with node numbers N = 299 and K = 8. The graph is drawn with July data in the dataset, as shown in Fig. 1. The signal value on the graph is simulated by color, and the scale with color is located on the right side of the simulation diagram. To facilitate processing, we select the most similar 200 data in the frequency domain of the July graph signal as the spectrally sparse value F. The sampling set |S| = 210 is obtained by the same greedy sampling method as the literature [2]. The UF can be obtained by crossing out the corresponding part that does not belong to the F set after F is determined. In this section, we use the July signal as a static graph signal for the onlinereconstruction of the graph sampling signal翻译搜索复制