Presentation of BarcelonaNow dashboard, developed by Eurecat's Data Science and Big Data Analytics research team as part of the DECODE project.

1. BarcelonaNow dashboard
showcase
DECODE technical symposium
April 25, 2018 - Barcelona

2. http://bcnnow.decodeproject.eu/

3. Customized visualizations
● The tool allows users to:
○ Display data using markers or heatmaps
○ Display animations of temporal data
○ Display temporal trends graphs
○ Display information associated with a given marker
○ Aggregate data with different temporal and geo granularities
○ Filter data based on keywords and time ranges
○ Combine two or more data sources on different layers

5. Information associated with a given marker

6. Visualizing and comparing temporal trends
Temporal trend of the noise sensors selected in the map

7. Geographical aggregation by district
The dashboard allows to…
● Visualize data from diverse public sources:
○ Airbnb InsideAirbnb
○ Aplicatiu de Sistemes Integrats d’Atenció ASIA
○ Incidències, Reclamacions i Suggeriments IRIS
○ Open Data Infrastructure ODI
○ Sentilo
○ Smart Citizen
● Create visualizations customized by the user:
○ Display data using markers or heatmaps
○ Aggregate with temporal and geo granularities
○ Filtering based on keywords and time ranges
○ Combine two or more visualizations to discover patterns

8. Combining data sources on different layers
Noise sensors (markers) and complaints about noise (heatmap)

9. Sharing and co-creation
The tool allows users to:
● Create, combine and share visualizations:
○ Combine several visualizations (widgets) into a
dashboard
○ Move widgets between dashboards
○ Share the link to a widget or dashboard
→ users can share and spread their results
→ other users can build on a visualization and modify it

10. Currently integrated data sources
● Open data from public sources:
○ City events: ASIA (Aplicatiu de Sistemes Integrats d’Atenció)
○ Citizen complaints: IRIS (Incidències, Reclamacions i
Suggeriments)
○ Bikesharing data from the Municipality Open Data: ODI
(Open Data Infrastructure)
○ Sensor data: Sentilo
○ CityOS (under development with IMI)
○ Decidim public data through the API (next step!)
● and from some external sources:
○ Sensor data: Smart Citizen
○ Scraped Airbnb data: InsideAirbnb

11. As-is infrastructure

12. Data record common structure
● A data collector for each data source
○ to turn data from the original data format into a common format
○ payload field includes data that are different for each data source

13. Data record location fields

14. Work in progress
● Improve backend
○ Revise data architecture to improve performance and scalability
● Improve frontend
○ Improve performance, widget customization
○ Show daily/weekly/monthly trends for time series
○ Introduce other kinds of visualizations
● Integrate other public data sources
○ CityOS
○ Decidim public API
○ More data from ODI (demographic data, housing price data...)

15. Crowd-sourced
(public/private)
data
Integration with Barcelona pilots
IDIGITAL / BCNOW
PLATFORM
BCNNOW DASHBOARD
IOT PILOT INVOLVING
#CITIZENSENSE
Open
Democra
cy
Citizen
Sensing /
IoT
Privacy-aware
personalized
visualizations
Petition count + validation
Demographic
information
Data sovereignitiy
DATA COMMONS

16. References
Mirko Marras, Matteo Manca, Ludovico Boratto, Gianni Fenu, David Laniado (2018).
BarcelonaNow: Empowering Citizens with Interactive Dashboards for Urban Data Exploration.
In Proceedings of The Web Conference (WWW’18), Lyon, France, April 2018.
Online demo:
http://bcnnow.decodeproject.eu/
Contacts:
mirko.marras@ce.eurecat.org
david.laniado@eurecat.org
University
of Cagliari