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Towards a realtime Twitter analysis ISCRAM2012
 

Towards a realtime Twitter analysis ISCRAM2012

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    Towards a realtime Twitter analysis ISCRAM2012 Towards a realtime Twitter analysis ISCRAM2012 Presentation Transcript

    • Towards realtime Twitter analysis ISCRAM 2012Arnout de Vries (TNO), Teun Terpstra (HKV), Geerte Paradies (TNO), Richard Stronkman (Twitcident) WWW.FLOODCONTROL2015.COM > 23 april 2012 SLIDE
    • Discussion and future work1 minute agoResults: early warning, facts and feelings, resilience5 minutes agoAnalysis (Pukkelpop) and research method (Twitcident)10 minutes agoGoal: “Monitor and analyze Twitter during incidents inreal-time to improve crisis management”15 minutes agoSocial sensors and citizen journalism20 minutes ago
    • 3M Bouman10 januari 2011TNO Nieuwe huisstijl SLIDE
    • Social media & emergency management Red river floods SLIDE 4
    • PukkelpopStorm incident 2011 August 18th 2011, 6.15 PM 6
    • Finding and filtering: keywords,syntactical, context andsemantic features. More info: 7
    • Pukkelpop Twitter visual analysis 156.157 tweets total in 2 days Tweets /min 576 tweets/min SLIDE 8
    • Pukkelpop Twitter visual analysisSelection of 96.957 tweets between noon and midnight Tweets /min 12 AM 12 PM SLIDE 9
    • Geographical spread of Tweets Total spread afterwards: SLIDE 10
    • Pukkelpop Twitter: filter messages 2. Damage and casualties Messages about (rumours on) casualties and deaths 3. ‘Community resilience’ 1. Early warning People offering help in various ways (e.g. twitterlists) ‘Dangerous weather’ messages as early indicators SLIDE 11
    • Early warnings? Impact Indication? storm Words used 25 minutes before impact 1. Weather: storm, thunder, cloud bursts, hail, …. “ ” 2. Locations: Brussel, Gent, Hasselt, … 3. Severity: intense, enormous, drama, ‘hell’, !…WWW.FLOODCONTROL2015.COM SLIDE 12
    • Pukkelpop Twitter: early warning 1. Early warningI pity those on #pukkelpop ! It was pitch darkhere for over 15 minutes! And hail storm,lightning, thunder, …OMG! SLIDE 13
    • Damage: photo’s from eye witnesses 14
    • Pukkelpop Twitter: damage & casualties 2. Damage and casualties• Retweets expressing doubts• Some messages reach 10k SMS from the Standard: according to fireman of Sint-Truiden 6 deaths on #pp11 because of storm users in 3 minutes #shitman• Hyperlinks (news or photo websites) high propagation SLIDE 15
    • Pukkelpop Twitter: community resilience• #Hasselthelpt, #Genthelpt, #Brusselhelpt, …• Creation of Twitterlists (e.g. PatriceF)• Sharing of phone numbers• Creation of Twitter accounts 3. ‘Community resilience’ #Hasselthelpt 2 beds, shower and breakfast, ask @Daffybal - pick up at church possible, we live behind the festival grounds SLIDE 16
    • Discussion Festival goers were taken by surprise, so it seems. But (weak) signals were there. Retweets accounted for large amounts of tweets on damage and casualties and only occurred when pictures (in case of damage) or links to official news sites (i case of casualties) were available. This suggests social norms on twitter prevent propagation of unverified information about delicate topics. Solidarity is important in coping with disasters (Starbird et al). Within 2 hours the #hasselthelpt initiative was followed massively. This suggests social media can facilitate community resilience that originate from nearby people. Twitter monitoring could enable crisis managers to confirm or refute rumors and take emotional responses into account in crisis communications.WWW.FLOODCONTROL2015.COM SLIDE 17
    • Future research Early detection and early warning: Examples: Queensday, (death) threats and weather conditions Filters for damage and casualties need to be verified for other incidents. New topic filters such as resilience need more research. Retweets and source credibility are indeed related. Images and links, besides the author, play an important role in assessing credibility. Indicators for assessing real-time credibility seem possible and are valuable for crisis response teams.WWW.FLOODCONTROL2015.COM SLIDE 18
    • Implications for crisis management Visual analysis provide a good start to identify abnormalities Filtering on damage could have provided pictorial evidence # of retweets attract attention and point toward a hot topic from a trusted source, and news about damage or casualties mostly have high propagation Not just about technology: organizational solutions needed for embedding social media usage in crisis communications, such as more experience, knowledge and policies.WWW.FLOODCONTROL2015.COM SLIDE 19
    • Questions? #daretoask
    • Thank you! Demonstration: TUESDAY afternoon 4:00 PM – 5:00 PM at Concourse levelWWW.FLOODCONTROL2015.COM SLIDE 21
    • TIMELINE First relevant pictures showing Start incident: Reports damage (collapse heavy rainfall about of tent) damage Large amounts of Indications of and rumour spread about Initiation of heaviness of casualties #deaths #Hasselthelpt storm GSM network Reports Deaths semi- is fixed heading to confirmed by about “SMS use ~ 21:00 Pukkelpop individual 19:15 only” is asked16:22 19:38 20:19 18:35 18:30 19:12 deaths 18:15 from citizens journalist forAugust 18th 2011 August 19th 19th aug12:00 AM Fire depts Sint 21:56 20:06 20:50 19:40 19:53 18:24 19:19 19:03 Truiden say 6 @Pukkelpop deaths and message with Hasselt says 1 “ death 7 injured Belgian press handelingsper Official news: started reporting spectief” 5 deaths, tens @Pukkelpop First pictures (individual (phone injured, first message showing panic accounts) number and festival since incident URL) cancelled Press conference Announcement (TV): 2 deaths Dutch press that festival is and 40 injured starts cancelled for the reporting night WWW.FLOODCONTROL2015.COM SLIDE 22
    • Pukkelpop Twitter: damage & casualties Tweets/min on ‘Damage’ topic Tweets/min on Casualty topic News media rumors SLIDE 23
    • Pukkelpop Twitter visual analysisOf which 94.109 were created from the start of the disaster (6:15 PM) Tweets /min SLIDE 24
    • Flood control 2015 Flood control 2015 programme: Stimulates the development of (IT) innovations in order to promote smarter protection against floods and other water related hazards. Social media and crisis management project Gathering information from technical sensors e.g. weather, dikes, waterlevels-> But also from the HUMAN sensor which information could humans provide?WWW.FLOODCONTROL2015.COM SLIDE 25