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This study aims to detect spatial-temporal changes in urban green space (UGS) topics pre-, during, and after the peak of the COVID-19 pandemic. Twitter data was selected as data source. Structural topic modelling (STM) was used to identify UGS topics and detect the trends of all topics over time. The inverse distance weighted (IDW) interpolation method was used to show the spatial distributions of all topics over all periods. The research found that the topic Nature observation was the most popular among all topics and showed an increasing trend in topic proportions and dynamic changes in spatial-temporal patterns.
Urban green space, Topic detection, Spatial-temporal analysis, COVID-19
Urban green space, Topic detection, Spatial-temporal analysis, COVID-19
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
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| downloads | 3 |

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