Table 1.
Features used in the analysis.
Table 2.
Example helpful and unhelpful reviews.
Fig 1.
Vote distributions.
Table 3.
Descriptive statistics of the balanced datasets after pre-processing.
Table 4.
The classification accuracy and ranking (In-category/Overall) of individual features.
Fig 2.
Feature performance versus stability.
Table 5.
Optimal combinations of features within each category.
Fig 3.
Comparison between max-performance individual feature (Blue) and max-performance combination of features (Orange) within each category.
Table 6.
Frequent feature combination patterns within each category.
Table 7.
Optimal combinations of all features.
Fig 4.
Comparison among the max-performance individual feature (Blue), max-performance in-category feature combination (Orange), and max-performance combination of all features (Green).