pilleriine kamenjuk msc anto aasa phd mobility lab of university … · wearable sensors for...
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Pilleriine Kamenjuk MScAnto Aasa PhD
Mobility Lab of University of Tartu
Wearable sensors for mobility statistics
31.01.2019
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• Mobility as a phenomenon has changed.
• Understand the context and causality.
• Different and new data sources.
Migration and mobility are both the great potential and
challenge of the 21st century!
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• Wearable technology – „refers to accessories and clothing incorporating computer and
advanced electronic technologies“ (PwC 2016).
• Examples: smart glasses, fitness band, smart clothing, smart watch, smartphone, etc.
• Use cases: health & sports, public safety, entertainment, remote control, science, etc.
• „Keeping the wearable commitment“ (PwC 2016) – adoption, users’ needs, convenience.
• Physical and functional attributes (Park et al. 2014).
Wearable technology and sensors
Taxonomy for wearables (Park et al. 2014)
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• Multi-functional
• Non-invasive (?)• Other phone data: information as a by product of ICT services
(CDR, signaling, Bluetooth, app use data)
• Wireless, etc.
• Individual Community
• Wide, increasing use• Sample, spatial and temporal resolution, long term statistics
• Use cases: mobility patterns, behavioural
studies, social media use, etc.
Mobile phone as a wearable sensor
Sensor-enabled phones
GPS
Accele-rometer
Gyro-scope
Com-pass
Micro-phone
Camera
Light/
infrared sensor
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• Population statistics• Census• Migration• Commuting
• Central places & catchment areas• Tourism statistics
• Local• Inbound• Outbound
• Spatial segregation• Accessibility• Transport demand
• Focus of Mobility Lab on using mobile (sensor) data
• CDR data• Data from mobile application
(Mobility Log)
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• Call detail records (CDR) – location and time of call and number of respondent
(user id, location, time).
• Passive mobile positioning.
Memory files of mobile operators
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Spatial resolution of CDR
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Mobile
Census
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Regular movement according to the mobile positioning data
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Routing,
OD-matrix
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Central places & hinterlands
(commuting) Commuters
Central
placeUrban
region
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Migration
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Movement
during
Christmas
Eve
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Estonians abroad
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Ethnic differences in leisure-related spatial mobility
Silm, S., & Ahas, R. (2014). Ethnic differences in activity spaces: A study of out-of-home nonemployment activities with mobile phone data. Annals of the Association of American Geographers, 104(3), 542-559.
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Ethnic differences
in holidays
Mooses, V., Silm, S., & Ahas, R. (2016). Ethnic segregation during public and national holidays: A study using mobile phone data. Geografiska Annaler: Series B, Human Geography, 98(3), 205-219.
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Latvian fishermen on lake Peipsi
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Social networks
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Communication between places
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Diurnal rhythm
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Chronotypes
Weekday
Tim
e, h
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GPS
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Social network
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Boring life…
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GPS:
Time budget
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• The aim of IMO is to develop a
data infrastructure that
supports mobility studies.
• Integrate different data:
• data obtained from mobile phones
and other IT tools,
• country-specific e-data (censuses,
registers, databases, etc.),
• contextual data and descriptions
(environmental information, land use
functions, etc.).
Infotechnological Mobility Observatory
IMO data infrastructure
IMO User Portal
Data from mobile
phones and other IT
Personalized e-data from
the state
Contextual data
User Interfaces and Query
Environment
?/
i
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PwC (2016) The Wearable Life 2.0. Connected living in a wearable world. Consumer Intelligence
Series.
Park, S., Chung, K., Jayaraman, S. (2014) Wearables: Fundamentals, Advancements, and a Roadmap
for the Future. Wearable Sensors: Fundamentals, Implementation and Applications, Pages 1–23.
Used materials