Embed Size (px)
Citation preview
Using Smartphones to Research Daily Life
Dr. Neal LathiaComputer Laboratory, University of [email protected]
“First were mainframes, each shared by lots of people. Now we are in the personal computing era, person and machine staring uneasily at each other across the desktop. Next comes ubiquitous computing [...] when technology recedes into the background of our lives.”
- Weiser
Android: 1.5 million daily activations
Phone CallsText MessagesSocial MediaE-mailCameraCalendarsMapsTransportGamesNewsVideos
Phone CallsText MessagesSocial MediaE-mailCameraCalendarsMapsTransportGamesNewsMusicVideos
Communication Patterns;
Social Networks and Sharing; Information
Diffusion;Points of Interest;
Mobility; App Usage...
AccelerometerMicrophoneCameraGPSCompassGyroscopeWi-FiBluetoothProximityNFCLight
AccelerometerMicrophoneCameraGPSCompassGyroscopeWi-FiBluetoothProximityNFCLight
Activities; Transportation
Modes; Co-location; Mobility; Speaker
Detection; Speech Inferences; Context
Identification
How can we sense, identify, and capture high-level behaviours (e.g., walking, running) from low-level sensors (e.g., accelerometer)?
“Classic” Research Question (1):
For ever higher level behavioursGiven energy, computation constraints
How can we verify or understand qualitative aspects of behaviour that can be sensed (i.e., the why)?
“Classic” Research Question (2):
Choices, feelings, reasons, semantics (e.g., home vs. lat/lon).
Experience Sampling
Experience Sampling
Mood; Location Semantics
Focus/Engagement; Transportation
Choices; Physical Activity; Health;
Reactions to Music
Researching Daily Life:Reflecting on the 'scientific' method
Hypothesis
Measure
Test
Tradition...
Hypothesis
Measure
Test
ESM Design
Sensor-ESM studies...
Sensor-Sampling Design
HypothesisMeasure
Test
ESM Design
Ready for the public...
Sensor-Sampling Design
User Experience Design
Build App
Test App
Deploy App
Market App
Debug AppUpdate App
Re-design UXUser Support
De-noise data
Emotion Sense Basics:
(a) Complete a “long” survey about how you feel & your current context
(b) Receive notifications that ask you to complete a “short” survey
(c) View how your survey responses compare to the sensor data your phone has collected.
Emotion Sense Surveys
(momentary)Positive/Negative AffectDay “Goodness”Current LocationTexting/Calling HabitsCurrent ActivityDevice InteractionRecent SpeechPersonalitySociabilityConnectednessEngagement
(non-momentary)Demographics
Satisfaction with LifePersonality
GratitudeHealth
SociabilityJob SatisfactionLife AspirationsConnectedness
Emotion Sense Sensors
LocationTexting Logs
Call LogsAccelerometer
MicrophoneScreen On/Off Samples
Wi-FiBattery Levels
● How can we keep users engaged in a seemingly repetitive task?
● Surveys are “too long” … “too obtrusive” .. “too repetitive”
● ESM experiments “don't beneft me” … “too boring”
Design Challenges
A “Non”-Game designed like a game
How many questions to ask...?
When the user is “volunteering” a response (10)
vs.
When the user is responding to a notification (3)
Limited feedback – avoiding judging
How are people interacting?
– 12,000 interacting users;– 650,000+ survey responses– ~6% answer only 1 survey– ~800 daily user responses– Average of 60+ days responding to surveys per user– ~15% users > 3 months– App demographics ~ published Android user demographics
angry anxious lonely
relaxedenthusiasticcalm
Emotion Sense: Ongoing Work
– Making sense of noisy sensor data: various devices, time zones, participation lengths
– Analysing quality, content of survey responses
– Investigating the future of these tools: generalising (for researchers) vs. specialising (for a particular context).
Easy M:
Can I run a study like Emotion Sense?
(Without going back to the drawing board)
Generalised sensor-enhanced experience sampling tool.
Easy M Basics:
(a) Enter a “participant code” to join an experiment; app reconfigures itself (with timeout)
(b) Receive notifications that ask you to complete your researchers' survey
(c) Volunteer additional responses
Easy M Basics:
Allows for both “momentary” and “volunteered” survey types.
Questions include all the same types as Emotion Sense.
User feedback is limited to response time and compliance.
Where could Easy M be used?
Using Smartphones to Research Daily Life
Dr. Neal LathiaComputer Laboratory, University of [email protected]
http://emotionsense.org/http://www.cl.cam.ac.uk/~nkl25/easym/
