Mining Worse and Better Opinions
Table 9: Amazon dataset - parameters: equation (6), bins = 3.
['[BOLD] Category C [ITALIC] i', '[BOLD] minRev=20 (%)', '[BOLD] minRev=50 (%)', '[BOLD] minRev=100 (%)']
…,Kbins, i.e., if the function between the ordered sets of average adherence values Avgadh,i and average score values Avgscore,i is a monotonic function. By plotting the average score vs the average adherence, for some items, we found out a general upward trend. Nevertheless, there were many spikes that prevent the function from being monotonic. For the Amazon dataset, we performed three experiments, modifying the minimum number of reviews required (minRev) for each item, in order to discard items with few reviews.