Popis: |
Being famous for a classification algorithm using a simple statistic calculation, Naive Bayes produces a relatively low accuracy. This research tests how combining the Naive Bayes classifier using Chi-Square as its feature selection, accompanied by Laplace Smoothing, may improve its accuracy. The tests classify 600 high school biology exam questions in Bahasa Indonesia into Bloom’s Taxonomy of cognitive domain. Test results show an increase of 39.6% accuracy is produced from 21.03% to 60.63% when 100 new data introduced. On the other hand, a 22.19% increase is gained from 53.75% to 75.94% when a mix of testing data (10, 20, 50, 100, 250) is applied. |