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- W3160849954 abstract "The rapid spread of COVID-19 has already affected human lives throughout the globe. Governments of different countries have taken various measures, but how they affected people lives is not clear. In this study, a rule-based and a machine-learning based models are applied to answer the above question using public tweets from Japan, USA, UK, and Australia. Two polarity timeseries (meanPol and pnRatio) and two events, namely “lockdown or emergency (LED)” and “the economic support package (ESP)”, are considered in this study. Statistical testing on the sub-series around LED and ESP events showed their positive impacts to the people of (UK and Australia) and (USA and UK), respectively unlike Japanese people that showed opposite effects. Manual validation with the relevant tweets shows an agreement with the statistical results. A case study with Japanese tweets using supervised logistic regression classifies tweets into heath-worry, economy-worry and other classes with 83.11% accuracy. Predicted tweets around events re-confirm the statistical outcomes." @default.
- W3160849954 created "2021-05-24" @default.
- W3160849954 creator A5006383306 @default.
- W3160849954 date "2021-05-24" @default.
- W3160849954 modified "2023-09-30" @default.
- W3160849954 title "Event-Driven Time Series Analysis and the Comparison of Public Reactions on Covid-19" @default.
- W3160849954 doi "https://doi.org/10.5121/csit.2021.110507" @default.
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