Social media and <scp>COVID</scp>‐19: Can social distancing be quantified without measuring human movements?

Mackenzie, Anderson; Karami, Amir; Bozorgi, Parisa

doi:10.1002/pra2.378

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…Among topic models, we chose latent Dirichlet allocation (LDA) [43], which has been considered an effective model [44]. LDA has been utilized for different applications, such as analyzing medical documents to understand clinical notes [45], exploring the content of research papers to identify trends and patterns [46][47][48], and mining social media to understand online discussions [49][50][51][52].…”

Section: Feature Extractionmentioning

confidence: 99%

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Analysis of Geotagging Behavior: Do Geotagged Users Represent the Twitter Population?

Karami

Kadari

Panati

et al. 2021

IJGI

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Twitter’s APIs are now the main data source for social media researchers. A large number of studies have utilized Twitter data for diverse research interests. Twitter users can share their precise real-time location, and Twitter APIs can provide this information as longitude and latitude. These geotagged Twitter data can help to study human activities and movements for different applications. Compared to the mostly small-scale data samples in different domains, such as social science, collecting geotagged data offers large samples. There is a fundamental question whether geotagged users can represent non-geotagged users. While some studies have investigated the question from different perspectives, they did not investigate profile information and the contents of tweets of geotagged and non-geotagged users. This empirical study addresses this limitation by applying text mining, statistical analysis, and machine learning techniques on Twitter data comprising more than 88,000 users and over 170 million tweets. Our findings show that there is a significant difference (p-value < 0.001) between geotagged and non-geotagged users based on 73% of the features obtained from the users’ profiles and tweets. The features can also help to distinguish between geotagged and non-geotagged users with around 80% accuracy. This research illustrates that geotagged users do not represent the Twitter population.

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Section: Feature Extractionmentioning

confidence: 99%

“…Using the Mallet, we removed stopwords (e.g., "the") and obtained P(T|D) for three sets of topics, including 10, 25, and 50 topics. To define the LDA hyperparameters, we followed the literature [46,56] and selected β at 0.01 and α based on 50 T , where T is the number of topics.…”

Section: Feature Extractionmentioning

confidence: 99%

Analysis of Geotagging Behavior: Do Geotagged Users Represent the Twitter Population?

Karami

Kadari

Panati

et al. 2021

IJGI

Self Cite

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“…and researchers have emphasized the importance of social distancing in disease prevention through modeling and simulation (Chinazzi et al 2020 ). However, assessing people’s travel behavior is an important way to quantify social distancing (Anderson et al 2020 ). Many countries and cities have implemented social distancing measures such as work suspension (Ruiz-Frutos et al 2021 ), school closure (Zhang et al 2020 ) and limits on bars and restaurants (Abouk and Heydari 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Changes on local travel behaviors under travel reduction-related interventions during COVID-19 pandemic: a case study in Hong Kong

et al. 2023

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The emerging Omicron variant poses a serious threat to human health. Public transports play a critical role in infection spread. Based on the data of nearly 4 billion smartcard uses, between January 1, 2019 and January 31, 2021 from the Mass Transit Railway Corporation of Hong Kong, we analyzed the subway travel behavior of different population groups (adults, children, students and senior citizens) due to the COVID-19 pandemic and human travel behavior under different interventions (e.g. work suspension, school closure). Due to the pandemic, the number of MTR passengers (the daily number of passengers in close proximity in subway carriages) decreased by 37.4% (40.8%) for adults, 80.3% (78.5%) for children, 71.6% (71.6%) for students, and 33.5% (36.1%) for senior citizens. Due to work from home (school suspension), the number of contacted adults (students/children) in the same carriage during the rush hours decreased by 39.6% (38.6%/43.2%). If all workers, students, and children were encouraged to commute avoiding rush hours, the possible repeated contacts during rush hour of adults, children and students decreased by 73.3%, 77.9% and 79.5%, respectively. Since adults accounted for 87.3% of the total number of subway passengers during the pandemic, work from home and staggered shift pattern of workers can reduce the infection risk effectively. Our objective is to find the changes of local travel behavior due to the pandemic. From the perspective of public transports, the results provide a scientific support for COVID-19 prevention and control in cities.

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“…A large number of studies have utilized Twitter data to understand public discussions around the COVID-19 pandemic. These studies have investigated a wide range of topics related to COVID-19, such as understanding public communication using qualitative content analysis [18], word frequency analysis and sentiment analysis [19], and topic modeling [20][21][22], examining misinformation [23], and measuring social distancing [24].…”

Section: Introductionmentioning

confidence: 99%

COVID-19 Vaccine and Social Media in the U.S.: Exploring Emotions and Discussions on Twitter

et al. 2021

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The understanding of the public response to COVID-19 vaccines is the key success factor to control the COVID-19 pandemic. To understand the public response, there is a need to explore public opinion. Traditional surveys are expensive and time-consuming, address limited health topics, and obtain small-scale data. Twitter can provide a great opportunity to understand public opinion regarding COVID-19 vaccines. The current study proposes an approach using computational and human coding methods to collect and analyze a large number of tweets to provide a wider perspective on the COVID-19 vaccine. This study identifies the sentiment of tweets using a machine learning rule-based approach, discovers major topics, explores temporal trend and compares topics of negative and non-negative tweets using statistical tests, and discloses top topics of tweets having negative and non-negative sentiment. Our findings show that the negative sentiment regarding the COVID-19 vaccine had a decreasing trend between November 2020 and February 2021. We found Twitter users have discussed a wide range of topics from vaccination sites to the 2020 U.S. election between November 2020 and February 2021. The findings show that there was a significant difference between tweets having negative and non-negative sentiment regarding the weight of most topics. Our results also indicate that the negative and non-negative tweets had different topic priorities and focuses. This research illustrates that Twitter data can be used to explore public opinion regarding the COVID-19 vaccine.

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Social media and COVID‐19: Can social distancing be quantified without measuring human movements?

Cited by 3 publications

References 10 publications

Analysis of Geotagging Behavior: Do Geotagged Users Represent the Twitter Population?

Analysis of Geotagging Behavior: Do Geotagged Users Represent the Twitter Population?

Changes on local travel behaviors under travel reduction-related interventions during COVID-19 pandemic: a case study in Hong Kong

COVID-19 Vaccine and Social Media in the U.S.: Exploring Emotions and Discussions on Twitter

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