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Data Visualization: demonstration
with case studies
Ling-Jyh (L.J.) Chen, Academia Sinica
cclljj@iis.sinica.edu.tw
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Recap: the AirBox project
2
l  Micro Air Pollution Sensing
l  Participatory sensing
l  Open big data / Analysis
l  Device design  manufacture
l  Apps  firmware development
l  Cloud Facility
l  Public Awareness
l  Smart City
l  Environment Policy
l  Location Awareness Sensing System
l  Experts and technology hackers
l  Maker Community
l  Environment education
l  Maker education
l  Micro Air Pollution Sensing
l  Participatory sensing
l  Open big data / Analysis
l  Device design  manufacture
l  Apps  firmware development
l  Cloud Facility
l  Public Awareness
l  Smart City
l  Environment Policy
l  Location Awareness Sensing System
l  Experts and technology hackers
l  Maker Community
l  Environment education
l  Maker education
• International 

collaboration
ASEAN IVO
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
AirBox Statistics
• 5 device types and 4 partner projects
• ~3,200 devices (2017/1/1 ~ present)
• 30 countries
• ~2,000 active devices daily
• 16 data APIs
• ~3 data requests per second
• ~20GB data download per day
3
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
How AirBox works?
4
AirBox System
People
Device
Visualization
APIs
Data
Applications
Research
AirBox is people-centric!
Visualization is the key!
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Visualization Tools
5
Desktop version Web version
Examples
Excel, Matlab, R,
Tableau, ArcGIS, QGIS
HTML + Script,
R+Shiny, Grafana, CartoDB
Pros
easy  fancy,
data confidentiality
mostly free, realtime
lab analysis = open service
Cons
mostly not free, not realtime
lab analysis = open service
need DIY,
data leakage risk
User researchers
service providers
(programmers)
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Web version
6
Data Source Computation Visualization
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
AirBox Visualization
7
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Example 1: Device Info
8
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Example 2: Device Comp.
9
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Example 3: Dashboard
10
https://pm25.lass-net.org/grafana/
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Example 4: Voronoi  IDW
11
https://pm25.lass-net.org/GIS/voronoi/
https://pm25.lass-net.org/GIS/IDW/
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Example 5: Animation
12
https://pm25.lass-net.org/en/#animation
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Case 1: China Smog
13
Smog from China on 2017/01/30
http://gph.is/2jKCLuM
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Case 1: China Smog
14
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 15
2017/02/04 21:00 - 2017/02/05 04:00 God birthday ritual
http://gph.is/2lUD4SU
Case 2: God B-day
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 16
Case 2: God B-day
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 17
2017/02/20 South wind on 10am
Case 3: Wind Effect
http://gph.is/2lbSaoO
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 18
2017/03/06 - heavy rain (from N to S of TW) after pollution, starting around 2pm
Case 4: Rain Effect
http://gph.is/2mssm8Y
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Lessons Learned
• Visualization = making sense of data
• Web version is preferred!
• Don’t reinvent the wheels!
• “Must-have”  “Nice-to-have”
• Think about scalability issues
• Think about data/information leakage and
other security/privacy issues
19
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Take home messages
20
• Visualization is the process to make sense
of the data
• Web based visualization is preferred, and 

it’s suggested to working with CS people :)
• Always think about “must-have”, and 

just do it!
• There are plenty of challenges opportunities,
and we look forward to collaborating with
you!
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 21
PM2.5 Open Data Portal
https://pm25.lass-net.org/

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[2017 AI-SOCD] AirBox Data Visualization: demonstration with case studies

  • 1. Data Visualization: demonstration with case studies Ling-Jyh (L.J.) Chen, Academia Sinica cclljj@iis.sinica.edu.tw
  • 2. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Recap: the AirBox project 2 l  Micro Air Pollution Sensing l  Participatory sensing l  Open big data / Analysis l  Device design manufacture l  Apps firmware development l  Cloud Facility l  Public Awareness l  Smart City l  Environment Policy l  Location Awareness Sensing System l  Experts and technology hackers l  Maker Community l  Environment education l  Maker education l  Micro Air Pollution Sensing l  Participatory sensing l  Open big data / Analysis l  Device design manufacture l  Apps firmware development l  Cloud Facility l  Public Awareness l  Smart City l  Environment Policy l  Location Awareness Sensing System l  Experts and technology hackers l  Maker Community l  Environment education l  Maker education • International 
 collaboration ASEAN IVO
  • 3. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) AirBox Statistics • 5 device types and 4 partner projects • ~3,200 devices (2017/1/1 ~ present) • 30 countries • ~2,000 active devices daily • 16 data APIs • ~3 data requests per second • ~20GB data download per day 3
  • 4. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) How AirBox works? 4 AirBox System People Device Visualization APIs Data Applications Research AirBox is people-centric! Visualization is the key!
  • 5. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Visualization Tools 5 Desktop version Web version Examples Excel, Matlab, R, Tableau, ArcGIS, QGIS HTML + Script, R+Shiny, Grafana, CartoDB Pros easy fancy, data confidentiality mostly free, realtime lab analysis = open service Cons mostly not free, not realtime lab analysis = open service need DIY, data leakage risk User researchers service providers (programmers)
  • 6. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Web version 6 Data Source Computation Visualization
  • 7. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) AirBox Visualization 7
  • 8. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Example 1: Device Info 8
  • 9. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Example 2: Device Comp. 9
  • 10. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Example 3: Dashboard 10 https://pm25.lass-net.org/grafana/
  • 11. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Example 4: Voronoi IDW 11 https://pm25.lass-net.org/GIS/voronoi/ https://pm25.lass-net.org/GIS/IDW/
  • 12. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Example 5: Animation 12 https://pm25.lass-net.org/en/#animation
  • 13. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Case 1: China Smog 13 Smog from China on 2017/01/30 http://gph.is/2jKCLuM
  • 14. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Case 1: China Smog 14
  • 15. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 15 2017/02/04 21:00 - 2017/02/05 04:00 God birthday ritual http://gph.is/2lUD4SU Case 2: God B-day
  • 16. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 16 Case 2: God B-day
  • 17. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 17 2017/02/20 South wind on 10am Case 3: Wind Effect http://gph.is/2lbSaoO
  • 18. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 18 2017/03/06 - heavy rain (from N to S of TW) after pollution, starting around 2pm Case 4: Rain Effect http://gph.is/2mssm8Y
  • 19. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Lessons Learned • Visualization = making sense of data • Web version is preferred! • Don’t reinvent the wheels! • “Must-have” “Nice-to-have” • Think about scalability issues • Think about data/information leakage and other security/privacy issues 19
  • 20. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) Take home messages 20 • Visualization is the process to make sense of the data • Web based visualization is preferred, and 
 it’s suggested to working with CS people :) • Always think about “must-have”, and 
 just do it! • There are plenty of challenges opportunities, and we look forward to collaborating with you!
  • 21. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 21 PM2.5 Open Data Portal https://pm25.lass-net.org/