An Optimized Machine Learning and Big Data Approach to Crime Detection

Table 4

Performance evaluation: Los Angeles Dataset.

Classifier	15 days average			7 days average			2 days average
	Accuracy	Precision	Recall	Accuracy	Precision	Recall	Accuracy	Precision	Recall
NB	91	93.75	88.24	90	91.67	88	89	89.58	87.76
NB (with proposed features)	93	92.93	92.93	92.5	91.92	92.86	90.5	88.35	92.86
RF	90.5	88.24	92.78	89.5	88.24	90.91	88	87.88	87.88
RF (with proposed features)	94.5	92.08	96.88	93.5	90.29	96.88	92.5	90.1	94.79
kNN	88	83.33	93.75	88.5	85.05	92.86	85.5	81.98	91
kNN (with proposed features)	92	92.86	91	91.5	92.78	90	90.5	92.78	88.24
SVM	87	85.71	87.5	88.5	88.42	87.5	89.5	90.53	87.76
SVM (with proposed features)	92.5	97.8	87.25	91	97.8	84.76	89.5	95.7	83.96