Missing Data Reconstruction Based on Spectral k-Support Norm Minimization for NB-IoT Data

Table 1

Data samples from the water quality monitoring NB-IoT platform.

Monitoring time	COD (mg/L)	Ammonia nitrogen (mg/L)	Total nitrogen (mg/L)	pH
2020-01-01 00 : 00 : 00	12.009	2.419	9.21	7.02
2020-01-01 00 : 10 : 00	12.27	2.124	9.27	7
2020-01-01 00 : 20 : 00	12.239	2.07	9.28	6.98
2020-01-01 00 : 30 : 00	11.81	1.923	9.41	6.95
…	…	…	…	…