In fact, we randomly select 50 documents in the domain of kitchen appliances and find that 80% of the documents take both personal and impersonal sentences in which both of them express explicit opinions.
the effectiveness of different sizes of chosen samples in each iteration is also evaluated like 1 2 3 6 n n n = = = and 1 2 3 3, 6 n n n = = = (this assignment is considered because the personal view classifier performs worse than the other two classifiers).