An Improved Transition Probability Matrix for Crime Distribution Prediction

Table 3

Results of crime hot spot prediction experiment of four kinds of grids in 2019.

	Grid hit ratio HitRa			Case hit rate HitRn			Case hit efficiency HitEn
	Literature [18]	Literature [19]	Proposed	Literature [18]	Literature [19]	Proposed	Literature [18]	Literature [19]	Proposed
Stabilize the hot spot grid	0.825	0.891	0.914	0.841	0.898	0.912	0.585	0.592	0.597
Higher hot spot grid	0.605	0.631	0.637	0.631	0.679	0.682	0.471	0.474	0.479
Occasional hot spot grid	0.361	0.334	0.376	0.391	0.374	0.418	0.432	0.425	0.436
Nonhot spot grid	0.181	0.175	0.186	0.232	0.225	0.244	0.415	0.491	0.511