Analysis of Food Delivery Using Big Data: Comparative Study before and after COVID-19.

Foods · 2022 · PMC9562183 · PMID 36230105

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an increasing trendno p-value reported

In addition, compared to the pre-COVID-19 pandemic era, a weakening trend in positive emotions and an increasing trend in negative emotions were detected after the outbreak of the COVID-19 pandemic; sub-emotions under the positive category (e.g., good feelings, joy, interest) decreased in 2021 compared to 2019, whereas sub-emotions under the negative category (e.g., sadness, fear, pain) increased. food delivery din

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