Using Spectral Clustering Association Algorithm upon Teaching Big Data for Precise Education

Table 1

Item-user matrix for space vector.

	User 1	User 2	…	User m
Item 1	W 11	W 12	…	W 1m
Item 2	W 21	W 22	…	W 2m
…	…	…	…	…
Item n	W n1	W n2	…	W nm