Two-Level Automatic Adaptation of a Distributed User Profile for Personalized News Content Delivery

Table 1

Degrees of preference and the corresponding numerical values.

Degree of	Numerical	Numerical
preference	value	interval
None	0	0
Low	0.3	(0, 0.3]
Medium	0.5	(0.3, 0.7)
High	0.7	[0.7, 1]