Compared with survey polls, social media can yield a better and more comprehensive
understanding of public perceptions of special topics in a more scientific manner. However …

Background Sentiment analysis (SA) is a subfield of natural language processing whose
aim is to automatically classify the sentiment expressed in a free text. It has found practical …

The outbreak of Corona Virus Disease 2019 (COVID-19) is a grave global public health
emergency. Nowadays, social media has become the main channel through which the …

COVID-19 has changed our lives forever. The world we knew until now has been
transformed and nowadays we live in a completely new scenario in a perpetual restructuring …

The main objective of this exploratory study is to identify the social, economic, environmental
and cultural factors related to the sustainable care of both environment and public health …

Public sentiment provides an important social reference for urban management and
planning. The relationship between public sentiment and a single type of land use has …

Background Natural environment might encourage physical exercise, hence enhancing
human health and wellbeing. Social media offers an extensive repository of spatiotemporal …

Residents' sentiments are a quantitative indicator of human feelings, which is useful for
optimizing urban residential environments. Little is known about the spatiotemporal …

Urban river pollution has brought about serious challenges to residents in terms of bodily
health and emotional well-being. Based on a social media platform, Chinese Twitter …

During the COVID-19 pandemic, the emotion of urban residents has been largely affected,
resulting in different levels of stress and negative emotions. Emotion is an indispensable …