sam stehle rob kitchin - european commission · sam stehle rob kitchin....
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@dashbuild
Visual Indicators of Real-Timenessin Smart City Dashboards
Sam StehleRob Kitchin
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Dashboard uses and users
• Transportation decisions
• Comparison to other cities
• Monthly reports
• Custom visualisations
• Goal benchmarking
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Making data usable
Real-time data from smart IoT
Trusted smart statistics
Dashboards
• How frequent?
• How does it compare?
• Is it actively producing?
• How responsive to the real world?
• How variable is it?
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Considering the roles that dashboards play as
• Combining real-time and archival data,
• Catering to novice and advanced users,
• Presenting the image of a city
• Interfacing between data and decisions
How can dashboard design increase trustworthiness?
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Trust and realtimeness
Weltevrede, E., Helmond, A., & Gerlitz, C. (2014). The politics of real-time: A device perspective on social media platforms and search engines. Theory, Culture & Society, 31(6), 125-150.
• Relevance algorithms promote different timings
• Different devices, different speeds
• Storing/archiving capacity
• Sensor latency
• Interface rendering
• Computational vs. experienced real-time
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Manual or automatic refresh?
• No interruption to pattern analysis• Requires interaction
• “I don’t need to click on something to get actual information”
• High risk of change blindness
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Real-time metadata (auto refresh)
• Age of the data• Cannot infer refresh rate
• Lifespan of current data• Can plan for data replacement
Can either method demonstrate data veracity?
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Historical real-time data
• Linear representation is familiar to work with
• Better seasonality detection• City activity has regular
patterns
• Tracking progress toward development goals
• Provides context for real-time data
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Situational awareness
• Necessary for rapid response to emerging disasters
• Assess situation, project, respond
• Using data visualisation techniques
• Which information is useful?
• Which information is out of date?
• Which information is actionable?MacEachren, A.M. et al (2011) SensePlace2: GeoTwitter Analytics Support for Situational Awareness. IEEE Symposium on Visual Analytics Science and Technology. Oct 23-28, Providence, RI, USA
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Topology of Real-Time VisualisationMethod Advantage
Real-timeness
Manual refresh Data on demand
Auto refresh No input necessary
Indicator of refresh type No unnecessary interaction
Time since last update Data currency
Time until next update Preparedness for data replacement
Indicator of refresh rate Data frequency
Updates in clock time No time translation necessary
Updates in local time Coincides with local functions
Spatial display Spatially comparable Data-at-a-glance
Archival display
Archival display Long-term patterns
Controllable archive timing Trend and seasonality visibility
Benchmarking Contextual comparison
Comparable archive No interactivity necessary
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Recommendations – User PreferencesMethod Advantage
Manual refresh Data on demand
Auto refresh No input necessary
Indicator of refresh type No unnecessary interaction
Time since last update Data currency
Time until next update Preparedness for data replacement
Indicator of refresh rate Data frequency
Updates in clock time No time translation necessary
Updates in local time Coincides with local functions
Spatially comparable Data-at-a-glance
Archival display Long-term patterns
Controllable archive timing Trend and seasonality visibility
Benchmarking Contextual comparison
Comparable archive No interactivity necessary
“… I don’t need to click on something to get to the actual information.”
“… what a dashboard is for, it’s for dynamic information.”
“… has its indicators like, okay, how… how real or how real time the indicators are…”
“it’s moving. Yeah, it’s changing. Yeah, so I really like it.”
“Why can’t I just immediately on the dashboard see a map… I can see patterns on the map… local knowledge actually develops from looking at the map, right?”
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Remaining challenges
• Standard uses without standard design principles or data
• Change blindness
• Archival storage
• Spatio-temporal pattern analysis
• Improve data literacy
• Maintenance of real-time infrastructure
• Move from high-detail data to comparable insight
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@dashbuild
We gratefully acknowledge funding from
Science Foundation Ireland
under the Investigator’s Award Program.
Award number: 15/IA/3090
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dashboards.maynoothuniversity.ie [email protected] @dashbuild
Sam Stehle
Rob Kitchin
Maynooth University
Maynooth, Ireland
@sam_stehle