{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T17:50:40Z","timestamp":1782323440343,"version":"3.54.5"},"reference-count":54,"publisher":"Public Library of Science (PLoS)","issue":"6","license":[{"start":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T00:00:00Z","timestamp":1782259200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012456","name":"National Social Science Fund of China","doi-asserted-by":"publisher","award":["19CTQ029"],"award-info":[{"award-number":["19CTQ029"]}],"id":[{"id":"10.13039\/501100012456","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"<jats:p>To explore the evolution trends and sentiment characteristics of public\u2019s attention toward express services following the comprehensive adjustment of COVID-19 prevention policies in China, and to provide empirical evidence for service quality improvement and regulatory policy optimization, this paper uses Weibo data from December 10, 2022, to January 10, 2023 as research samples. This paper employs the Entropy Weight Method (EWM) to quantify post popularity and identify high-attention content, applies the Dynamic Topic Modeling (DTM) to uncover temporal patterns of public attention themes, and constructs a CNN-LSTM model for sentiment analysis to reveal cognitive differences between official certification bloggers and personal certification bloggers. The findings include: (1) Public sentiment toward express services was predominantly negative, and sentiment fluctuations were highly correlated with logistics pressure events such as the \u201cDouble 12\u201d shopping festival, pandemic infection peaks, and the New Year\u2019s Day holiday; (2) Six core topics were identified, with \u201cgoods safety\u201d and \u201cafter-sales service\u201d representing persistent traditional attention, while \u201ccourier rights\u201d and \u201cgovernments\u2019 requirements for enterprises\u201d emerged as two new trends in the post-pandemic era; (3) Official certification bloggers adopted a macro perspective focusing on enterprise service quality and logistics economy, whereas personal certification bloggers emphasized micro-level experiences regarding last-mile delivery conflicts and labor rights, with both groups converging on the issue of \u201ccourier rights.\u201d In the post-COVID-19 era, public\u2019s attention to express services has extended beyond efficiency and quality demands to encompass deeper dimensions such as labor rights protection and corporate social responsibility. Express enterprises should strengthen courier team building and optimize service processes, while governments need to improve industry standard-setting and regulatory incentive mechanisms to promote sustainable industry development.<\/jats:p>","DOI":"10.1371\/journal.pone.0348096","type":"journal-article","created":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T17:22:23Z","timestamp":1782321743000},"page":"e0348096","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["Will there be new trends in the public\u2019s attention to express services in the post-COVID-19 era?"],"prefix":"10.1371","volume":"21","author":[{"given":"Xin","family":"Chen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-0304-5017","authenticated-orcid":true,"given":"Jie","family":"Gao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qin","family":"Qin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chuanlei","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2026,6,24]]},"reference":[{"key":"pone.0348096.ref001","first-page":"7","article-title":"Electronic Word-of-Mouth","volume":"6","author":"J Fong","year":"2006","journal-title":"Journal of Interactive Advertising"},{"issue":"7","key":"pone.0348096.ref002","doi-asserted-by":"crossref","first-page":"813","DOI":"10.1080\/13675567.2021.1988909","article-title":"Present and future trends of supply chain management in the presence of COVID-19: a structured literature review","volume":"26","author":"X Shi","year":"2021","journal-title":"International Journal of Logistics Research and Applications"},{"key":"pone.0348096.ref003","doi-asserted-by":"crossref","first-page":"107972","DOI":"10.1016\/j.ijpe.2020.107972","article-title":"Can supply chain risk management practices mitigate the disruption impacts on supply chains\u2019 resilience and robustness? 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China has issued a white paper on China\u2019s actions to combat the Novel Coronavirus epidemic, which mentions the postal delivery industry four times. 2020 June 7(cited 7 June 2020). Available from:https:\/\/www.gov.cn\/zhengce\/2020-06\/07\/content_5517737.htm"},{"issue":"6","key":"pone.0348096.ref008","doi-asserted-by":"crossref","first-page":"1","DOI":"10.4018\/JOEUC.20211101.oa3","article-title":"Mining Express Service Innovation Opportunity From Online Reviews","volume":"33","author":"N Zhang","year":"2021","journal-title":"Journal of Organizational and End User Computing"},{"key":"pone.0348096.ref009","volume-title":"Research on Customer Satisfaction of Express Service Industry Based on Text Mining","author":"K Li","year":"2020"},{"key":"pone.0348096.ref010","doi-asserted-by":"crossref","first-page":"1044032","DOI":"10.3389\/fpsyg.2022.1044032","article-title":"The main influencing factors of customer satisfaction and loyalty in city express delivery","volume":"13","author":"Z Lei","year":"2022","journal-title":"Front Psychol"},{"key":"pone.0348096.ref011","volume-title":"Research on Improving Express Service Quality Based on Online Review Data Mining","author":"P Ding","year":"2023"},{"key":"pone.0348096.ref012","doi-asserted-by":"crossref","first-page":"866","DOI":"10.1080\/02642069.2018.1561874","article-title":"Stakeholder engagement via social media: an analysis of third-party logistics companies","volume":"40","author":"G Denkta\u015f-\u015eakar","year":"2018","journal-title":"The Service Industries Journal"},{"issue":"13","key":"pone.0348096.ref013","doi-asserted-by":"crossref","first-page":"3570","DOI":"10.3390\/su11133570","article-title":"Analyzing the Relationship between Consumer Satisfaction and Fresh E-Commerce Logistics Service Using Text Mining Techniques","volume":"11","author":"W Hong","year":"2019","journal-title":"Sustainability"},{"key":"pone.0348096.ref014","doi-asserted-by":"crossref","first-page":"115030","DOI":"10.1016\/j.eswa.2021.115030","article-title":"An integrated probabilistic graphic model and FMEA approach to identify product defects from social media data","volume":"178","author":"L Zheng","year":"2021","journal-title":"Expert Systems with Applications"},{"key":"pone.0348096.ref015","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1016\/j.jairtraman.2016.06.004","article-title":"Assessing customer value for express service providers: An empirical study from shippers\u2019 perspective in Taiwan","volume":"55","author":"J-F Ding","year":"2016","journal-title":"Journal of Air Transport Management"},{"key":"pone.0348096.ref016","unstructured":"The Central People\u2019s Government of the People\u2019s Republic of China. \u201cPeople\u2019s Republic of China Postal Industry Standard-Express Service\u201d implementation. 2008 January 1(cited 3 January 2022). Available from:https:\/\/baike.baidu.com\/item\/%E4%B8%AD%E5%8D%8E%E4%BA%BA%E6%B0%91%E5%85%B1%E5%92%8C%E5%9B%BD%E9%82%AE%E6%94%BF%E8%A1%8C%E4%B8%9A%E6%A0%87%E5%87%86?fromModule=lemma_search-box"},{"issue":"6","key":"pone.0348096.ref017","doi-asserted-by":"crossref","first-page":"1","DOI":"10.4018\/JOEUC.20211101.oa1","article-title":"Revisiting How Perceived Uncertainty and Herd Behavior Influence Technology Choice","volume":"33","author":"A Vedadi","year":"2021","journal-title":"Journal of Organizational and End User Computing"},{"key":"pone.0348096.ref018","doi-asserted-by":"crossref","first-page":"1056575","DOI":"10.3389\/fpubh.2022.1056575","article-title":"Research on express service defect evaluation based on semantic network diagram and SERVQUAL model","volume":"10","author":"S Gu","year":"2022","journal-title":"Front Public Health"},{"issue":"13","key":"pone.0348096.ref019","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1108\/K-03-2021-0197","article-title":"Determinants of e-commerce satisfaction: a comparative study between Romania and Moldova","volume":"51","author":"O Dospinescu","year":"2021","journal-title":"Kybernete"},{"key":"pone.0348096.ref020","doi-asserted-by":"crossref","DOI":"10.1109\/ICSSSM.2009.5174996","article-title":"Performance-only measurement of service quality: An empirical study in Chinese express industry","author":"Z Jun","year":"2009","journal-title":"2009 6th International Conference on Service Systems and Service Management. 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Lu","year":"2019","journal-title":"China National Conference on Chinese Computational Linguistics"},{"key":"pone.0348096.ref031","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1145\/1143844.1143859","article-title":"Dynamic topic models","author":"DM Blei","year":"2006","journal-title":"Proceedings of the 23rd international conference on Machine learning"},{"issue":"4","key":"pone.0348096.ref032","first-page":"993","article-title":"Latent dirichlet allocation","volume":"3","author":"MB David","year":"2003","journal-title":"Journal of Machine Learning Research"},{"key":"pone.0348096.ref033","doi-asserted-by":"crossref","first-page":"101582","DOI":"10.1016\/j.is.2020.101582","article-title":"A review of topic modeling methods","volume":"94","author":"I Vayansky","year":"2020","journal-title":"Information Systems"},{"issue":"2","key":"pone.0348096.ref034","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/j.joi.2011.11.004","article-title":"Adding community and 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Access"},{"issue":"2","key":"pone.0348096.ref038","doi-asserted-by":"crossref","first-page":"258","DOI":"10.1108\/JHTT-04-2021-0116","article-title":"Analysing online customer experience in hotel sector using dynamic topic modelling and net promoter score","volume":"14","author":"V-H Nguyen","year":"2023","journal-title":"Journal of Hospitality and Tourism Technology"},{"key":"pone.0348096.ref039","doi-asserted-by":"crossref","first-page":"108877","DOI":"10.1016\/j.engappai.2024.108877","article-title":"Investigating the optimal number of topics by advanced text-mining techniques: Sustainable energy research","volume":"136","author":"A Farea","year":"2024","journal-title":"Engineering Applications of Artificial Intelligence"},{"issue":"5","key":"pone.0348096.ref040","first-page":"1","article-title":"Scaling learning algorithms towards AI","volume":"34","author":"Y Bengio","year":"2007","journal-title":"Large-scale kernel machines"},{"key":"pone.0348096.ref041","doi-asserted-by":"crossref","first-page":"643","DOI":"10.3115\/v1\/P14-2105","article-title":"Semantic parsing for single-relation question answering","volume-title":"Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)","author":"W Yih","year":"2014"},{"key":"pone.0348096.ref042","doi-asserted-by":"crossref","first-page":"581","DOI":"10.1109\/TASLP.2019.2959251","article-title":"Tree-Structured Regional CNN-LSTM Model for Dimensional Sentiment Analysis","volume":"28","author":"J Wang","year":"2020","journal-title":"IEEE\/ACM Trans Audio Speech Lang Process"},{"issue":"8","key":"pone.0348096.ref043","doi-asserted-by":"crossref","first-page":"1735","DOI":"10.1162\/neco.1997.9.8.1735","article-title":"Long short-term memory","volume":"9","author":"S Hochreiter","year":"1997","journal-title":"Neural Comput"},{"issue":"5","key":"pone.0348096.ref044","doi-asserted-by":"crossref","first-page":"596","DOI":"10.3390\/e23050596","article-title":"Sentiment Analysis of Persian Movie Reviews Using Deep Learning","volume":"23","author":"K Dashtipour","year":"2021","journal-title":"Entropy (Basel)"},{"issue":"9","key":"pone.0348096.ref045","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0286541","article-title":"Analyzing influence of COVID-19 on crypto & financial markets and sentiment analysis using deep ensemble model","volume":"18","author":"PB Washington","year":"2023","journal-title":"PLoS One"},{"issue":"9","key":"pone.0348096.ref046","doi-asserted-by":"crossref","first-page":"6755","DOI":"10.1016\/j.aej.2021.12.022","article-title":"CNN-LSTM neural network model for fine-grained negative emotion computing in emergencies","volume":"61","author":"W Zhang","year":"2022","journal-title":"Alexandria Engineering Journal"},{"key":"pone.0348096.ref047","doi-asserted-by":"crossref","first-page":"72","DOI":"10.1016\/j.energy.2019.05.230","article-title":"Predicting residential energy consumption using CNN-LSTM neural networks","volume":"182","author":"T-Y Kim","year":"2019","journal-title":"Energy"},{"issue":"05","key":"pone.0348096.ref048","first-page":"100","article-title":"Research on user behavior portrait and subject mining in the express logistics field during Coronavirus epidemic","author":"JL Li","year":"2022","journal-title":"Journal of East China Normal University (Natural Science)"},{"issue":"26","key":"pone.0348096.ref049","first-page":"52","article-title":"Research on domestic express service quality evaluation based on SERVQUAL model","volume":"41","author":"JY Jia","year":"2022","journal-title":"Value Engineering"},{"issue":"07","key":"pone.0348096.ref050","first-page":"85","article-title":"Research and countermeasures for improving service quality in my country\u2019s express delivery industry","volume":"29","author":"HQ Yan","year":"2021","journal-title":"Trade Show Economy"},{"key":"pone.0348096.ref051","volume-title":"Research on Improving Express Delivery Service Quality Based on Online Review Data Mining","author":"P Ding","year":"2023"},{"key":"pone.0348096.ref052","unstructured":"State Post Bureau of the People\u2019s Republic of China. Seven departments jointly issued an opinion on safeguarding the legitimate rights and interests of delivery workers. 2021 July 8(cited 2026 12 February). Available from: https:\/\/www.spb.gov.cn\/gjyzj\/c200075\/202107\/e5fa722fb1774db6ba9bd719ab9013f1.shtml"},{"key":"pone.0348096.ref053","volume-title":"The social structure of competition","author":"S Holes","year":"1992"},{"key":"pone.0348096.ref054","first-page":"3","author":"SL Vargo","year":"2014","journal-title":"Evolving to a new dominant logic for marketing. 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