Wise Mobile Icons Organization: Apps Taxonomy Classification Using Functionality Mining to Ease Apps Finding

Table 6

Functional and BoW classification calibration by test accuracy comparison (best results only).

Dataset	Functional				BoW
Calibration/classifier	Crammer and Singer	L1	L2	Logistic regression	Crammer and Singer	L1	L2	Logistic regression
Accuracy (correctly classified)	79.16	80	78.33	77.5	88.94	88.42	88.94	88.42
Feature representation	TF/IDF	TF/IDF	TF/IDF	TF/IDF	TF/IDF	Word count or TF	Word count	Word count
Feature preprocess	Stemming, bigram	No SPR, stemming, and bigram	No stemming, unigram	Stemming, bigram	No SPR, no stemming, and unigram	Stemming	No SPR, stemming, and unigram	Unigram
Normalization	With	With	With or without	With	With	With or without	Without	With or without