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022 |a 1468-4527 
022 |a 1468-4535 
022 |a 0309-314X 
022 |a 1353-2642 
024 7 |a 10.1108/OIR-09-2018-0279  |2 doi 
035 |a 2316773592 
045 2 |b d20191001  |b d20191119 
084 |a 36206  |2 nlm 
100 1 |a Yang, Seungwon 
245 1 |a @Houstonpolice: an exploratory case of Twitter during Hurricane Harvey 
260 |b Emerald Group Publishing Limited  |c 2019 
513 |a Journal Article 
520 3 |a PurposeThe purpose of this paper is to examine the Houston Police Department (HPD)’s public engagement efforts using Twitter during Hurricane Harvey, which was a large-scale urban crisis event.Design/methodology/approachThis study harvested a corpus of over 13,000 tweets using Twitter’s streaming API, across three phases of the Hurricane Harvey event: preparedness, response and recovery. Both text and social network analysis (SNA) techniques were employed including word clouds, n-gram analysis and eigenvector centrality to analyze data.FindingsFindings indicate that departmental tweets coalesced around topics of protocol, reassurance and community resilience. Twitter accounts of governmental agencies, such as regional police departments, local fire departments, municipal offices, and the personal accounts of city’s police and fire chiefs were the most influential actors during the period under review, and Twitter was leveraged as de facto a 9-1-1 dispatch.Practical implicationsEmergency management agencies should consider adopting a three-phase strategy to improve communication and narrowcast specific types of information corresponding to relevant periods of a crisis episode.Originality/valuePrevious studies on police agencies and social media have largely overlooked discrete periods, or phases, in crisis events. To address this gap, the current study leveraged text and SNA to investigate Twitter communications between HPD and the public. This analysis advances understanding of information flows on law enforcement social media networks during crisis and emergency events. 
610 4 |a Police Department-Houston TX 
651 4 |a Houston Texas 
651 4 |a United States--US 
653 |a Hurricanes 
653 |a Application programming interface 
653 |a Emergency preparedness 
653 |a Law enforcement 
653 |a Social networks 
653 |a Information flow 
653 |a Social network analysis 
653 |a Text analysis 
653 |a Emergency management 
653 |a Electronic government 
653 |a Researchers 
653 |a Network analysis 
653 |a Informatics 
653 |a Graphical representations 
653 |a Police 
653 |a Public participation 
653 |a Government agencies 
653 |a Digital media 
653 |a Disaster management 
653 |a Eigenvectors 
653 |a Communication 
653 |a Interdisciplinary aspects 
653 |a Information science 
653 |a Data mining 
653 |a Reassurance 
653 |a Discourse strategies 
653 |a Resilience 
653 |a Computer mediated communication 
653 |a Social media 
653 |a Police departments 
653 |a Mass media 
653 |a Crises 
653 |a Fires 
653 |a Fire departments 
653 |a Verbal accounts 
653 |a N-Gram language models 
653 |a Departments 
653 |a Literature Reviews 
653 |a Citizen Participation 
653 |a Communication (Thought Transfer) 
653 |a Information Dissemination 
653 |a Coding 
653 |a Government (Administrative Body) 
700 1 |a Stewart, Brenton 
773 0 |t Online Information Review  |g vol. 43, no. 7 (2019), p. 1334-1351 
786 0 |d ProQuest  |t ABI/INFORM Global 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/2316773592/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/2316773592/fulltext/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/2316773592/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch