Presentation of research fields in the context of smart cities of NTNU Computer Science (IDI). Part of the delegation to the smart cities group at DTU.

1. Rector’s Visit DTU – NTNU
Delegation Smart Cities
Dirk Ahlers
NTNU
IDI (Institutt for datateknikk og informasjonsvitenskap)

2. 2
Research on Smart Cities and related areas
at NTNU–IDI
• Contribution to NTNU SmartCities
https://www.ntnu.edu/smartcities
• IME Lighthouse on Open Autonomous Digital
Ecosystems - http://www.ntnu.edu/ime/oade (Computer
Science, Electrical Engineering, Telematics), also
SmartGrids
• IME Lighthouse on Big Data
http://www.ntnu.edu/ime/bigdata
• HCI research in behaviour and Smart Meters
• Mobility

3. 3
Open and Autonomous Digital Ecosystems
(OADE)

4. 4
Campus Guide, MazeMap
• Campus as a Living Lab
• Member of ENoLL – European Network of Living Labs
• Cisco WLAN-positioning on Campus and in the city

5. 5
Infrastructure Setup
• Mobility data with high spatial and temporal
resolution
• WLAN indoor coverage on campus
• Passive location sensing, WLAN trilateration
• Device positions as proxy for people’s locations
• Sampling bias and double counting addressed
in future work for improved accuracy
• Data contains anonymized ID, timestamp,
coordinates, accuracy, derived hierarchy
– e.g. Gloshaugen > IT-Vest > 1. etasje, Gloshaugen
> Sentralbygg II > 13. etasje

6. 6
Stacked movement abstraction
• Position Gathering
• Abstraction and processing layers
– Data cleaning/preprocessing
– Movement Extraction
– Building-graph extraction
• Visualization

7. 7
Estimates are useful

8. 8
Mobility vs Search
[Navigating MazeMap: indoor human mobility, spatio-
logical ties and future potential, IEEE, 2014]

9. 9
Future work: Outdoor city mobility
[Thomas Jelle, Big Data and Smart Cities]

10. 10
Conclusion
• Awareness and planning
support of building use
• Real-time availability of
rooms and facilities
• Connection to larger
mobility
• Sustainable campus and
city
• Scaling out

11. Contact
search://Dirk Ahlers
geo: 63°25‘10“N 10°24‘9“E
@dirkahlers
dirk.ahlers@idi.ntnu.no