Understanding Citizens’emotion States under the Urban Livability Environment through Social Media Data: a Case Study of Wuhan

doi:10.11947/j.JGGS.2022.0206

Abstract

Abstract:

It is recognized that a city with a livable environment can bring happiness to residents. In this study, we explored the social media users’ emotional states in their current living spaces and found out the relationship between the social media users’ emotions and urban livability. We adopt six urban livability indicators (including education, medical services, public facilities, leisure places, employment, and transportation) to construct city livable indices. Also, the Analytic Hierarchy Process (AHP) spatial statistic method is applied to identify and analyze the different habitable regions of Wuhan City. In terms of citizen’s emotion analysis, we use Long Short-Term Memory (LSTM) neural network to analyze the Weibo text and obtain the Weibo users’sentiment scores. The correlation analysis of residents’ emotions and city livability results shows a positive correlation between the livable city areas (i.e., the area with higher livable ranking indices) and Weibo users’ sentiment scores (with a Pearson correlation coefficient of 0.881 and P-Value of 0.004). In other words, people who post Weibo in high livability areas of Wuhan express more positive emotional states. Still, emotion distribution varies in different regions, which is mainly caused by people’s distribution and the diversity of the city’s functional areas.

Key words: urban livability; sentiment analysis; Sina Weibo; Analytic Hierarchy Process; natural language processing; Long Short-Term Memory

Lai CHEN,Chaogui KANG,Chao YANG. Understanding Citizens’emotion States under the Urban Livability Environment through Social Media Data: a Case Study of Wuhan[J]. Journal of Geodesy and Geoinformation Science, 2022, 5(2): 49-59.

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	Indicators	Contents (Part of)
Urban livability indicators	Education	Primary school, high school, college
	Medical services	hospital, clinic
	Public facilities	Park, museum, green land
	Leisure places	Entertainment venues, leisure places
	Employment	State-owned enterprise, private enterprise
	Transportation	Road networks

(a) Scores for each factor
Target layer(A)		Standard level (B)	Points
City livability		Transportation(B1)	6
		Leisure places(B2)	3
		Public facilities(B3)	6
		Education(B4)	3
		Medical and health(B5)	3
		Employment(B6)	6
(b) The judgment criteria for relative importance
Points	Meaning
1	It means that the two factors are equally important
3	Indicates that the two factors are slightly more important than the former
5	Indicates that the two factors are significantly more important than the former
7	It means that the two factors are more important than the former
9	Indicates that the two factors are extremely important than the former
2、4、6、8	Represents the intermediate value of the above judgment adjacent

Factor	Influence distance/m
Transportation	300
Leisure places	500
Public facilities	400
Education	500
Medical services	500
Employment	1000

Parameter	Parameter value
Emotional threshold	0.39
Dropout	0.5
batch_size	128
train_num	120
max_len	100
min_count	5

Original Weibo text	Emotional label	Sentiment value
01. Someone still remembers my birthday. Although it is a trivial matter, it is still quite touching.	Pos	0.90
02. It’s been a long time since I drank coffee, it’s a bit uncomfortable http:t.cn/R2WJAOc	Neg	0.03
03. My friend went to Hokkaido to take photos in Japan. It’s so beautiful, I really want to go to Japan... [Poor] http://t.cn/R2dUAgX	Pos	0.76
04. Good luck in July [rabbit]#hello July # http://t.cn/R2dUAD3	Pos	0.99
05. The random process reveals a profound truth in life, the theorem is understood, but still unable to solve the problem. http://t.cn/R2dUAgX	Neg	0.03
06.Commemorating our passing freshman...http://t.cn/R2dUAgX 08.Walking in the wind, the sunshine today is suddenly so gentle. http://t.cn/R2dUAdW	Pos	0.3
07. Finally finished the exam, I will go for an internship in September [bye bye] http://t.cn/R2W6Cf2	Pos	0.4
08. I get off work at this point every day, I’m so heartbroken [tears][tears][tears] walked one hour late http:t.cn/R2WizXv	Neg	0.15
09. The most annoying subject to remember! It’s better to come and die with a few big calculations http:t.cn/R2WJAOc	Neg	0.08
10. Starving to death, I can finally start [Love you] http://t.cn/R2WJAOc	Pos	0.91