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Published at November 25

Location-Based Service (LBS) Data Quality Metrics and Effects on Mobility Inference

cs.CE

Released Date: November 25, 2024

Authors: Xinhua Wu¹, Yanchao Wang¹, Ekin Ugurel², Cynthia Chen², Shuai Huang³, Qi R. Wang¹

Aff.: ¹Northeastern University, Department of Civil and Environmental Engineering, Boston, MA 02115, United States; ²University of Washington, Department of Civil and Environmental Engineering, Seattle, WA 98195, United States; ³University of Washington, Department of Industrial and Systems Engineering, Seattle, WA 98195, United States

Arxiv: http://arxiv.org/abs/2411.16595v1

Income-segmented CBGs
	A1	A2	A3	A4	A5 ^$\dagger$	Total ^c
Number of CBGs	656	655	656	654	655	3,276
Total population	909,413	935,676	950,352	949,155	956,609	4,701,205
Median household Income (average)	44,043	72,657	95,560	118,187	169,435	99,953
LBS sampling rate (%) ^a	7.79	7.73	8.76	10.51	8.79	8.73
Qualified rate (%) (Criterion 1) ^b	1.19	1.40	1.24	1.02	0.94	1.15
Qualified rate (%) (Criterion 2) ^b	15.50	17.74	17.38	15.64	18.21	16.87
Qualified rate (%) (Criterion 3) ^b	31.11	33.43	31.62	27.80	31.37	30.87
Education-segmented CBGs
	B1	B2	B3	B4	B5 ^$\dagger$	Total ^c
Number of CBGs	681	681	681	681	681	3,405
Total population	988,549	1,016,947	1,015,905	953,877	859,065	4,834,343
Bachelor’s or higher degree rate (%)	10.38	23.15	33.69	44.86	60.56	33.61
LBS sampling rate (%) ^a	6.96	8.81	8.95	8.32	11.11	8.78
Qualified rate (%) (Criterion 1) ^b	1.46	1.54	1.26	1.02	0.48	1.13
Qualified rate (%) (Criterion 2) ^b	18.11	19.50	18.67	17.94	10.09	16.69
Qualified rate (%) (Criterion 3) ^b	35.47	35.12	33.26	31.97	19.44	30.66
Race-segmented CBGs
	C1 ^$\dagger$ (White)	C2 (Black)	C3 (Asian)	C4 (Hispanic)	C5 (Mixed)	Total ^c
Number of CBGs	2,693	139	29	170	373	3,404
Total population	3,846,221	177,393	34,235	254,600	520,914	4,833,363
LBS sampling rate (%) ^a	9.30	5.79	7.06	6.54	7.13	8.78
Qualified rate (%) (Criterion 1) ^b	1.12	1.55	0.89	1.12	1.19	1.13
Qualified rate (%) (Criterion 2) ^b	16.91	18.49	14.16	13.89	15.50	16.69
Qualified rate (%) (Criterion 3) ^b	30.54	36.76	30.97	28.80	30.93	30.66