Annotating Microblog Posts with Sensor Data for Emergency Reporting Applications

533 views

Published on

Presentation @ SSN'11 workshop @ ISWC'11

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
533
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Annotating Microblog Posts with Sensor Data for Emergency Reporting Applications

  1. 1. Digital Enterprise Research Institute www.deri.ie Annotating Microblog Posts with Sensor Data for Emergency Reporting Applications David N. Crowley, Alexandre Passant, John G. Breslin Electrical & Electronic Engineering Copyright 2011 Digital Enterprise Research Institute. All rights reserved. College of Engineering and Informatics Enabling Networked Knowledge
  2. 2. Why Microblogging?Digital Enterprise Research Institute www.deri.ie  Short format – 140 characters  Mobile Web or Mobile Apps available for most phones/all smartphones  (Almost) Real-Time Posts  Removes barriers to posting – short/mobile  User Growth (Twitter) Enabling Networked Knowledge
  3. 3. Why Twitter?Digital Enterprise Research Institute www.deri.ie  100 million active users  Growth from 65 to 200 million posts per day in 1 year  Available in many languages (11), most countries  Information Network/Social Network  Twitter APIs  Twitter Annotations Enabling Networked Knowledge
  4. 4. Twitter AnnotationsDigital Enterprise Research Institute www.deri.ie  forthcoming initiative by Twitter  attach arbitrary metadata to any tweet  Low limit to begin then expanding  Going beyond geotemporal annotations  “type”:{“attribute”:”value”}  “type”:{“title”:”avatar”} Enabling Networked Knowledge
  5. 5. Twitter Annotations (2)Digital Enterprise Research Institute www.deri.ie Enabling Networked Knowledge
  6. 6. Sensors (Smartphones)Digital Enterprise Research Institute www.deri.ie  Accelerometer  Magnetometer  Digital Compass  Accelerometer + Magnetometer = Orientation  Gyroscope  Microphone  Camera  Proximity  GPS  Light Enabling Networked Knowledge
  7. 7. SIOCDigital Enterprise Research Institute www.deri.ie Enabling Networked Knowledge
  8. 8. SIOC (2)Digital Enterprise Research Institute www.deri.ie  Semantically Interlinked Online Communities  Represents rich social data using RDF  Describes Web-based discussion  SIOC Types (sioct) Module  Microblog  MicroblogPost Enabling Networked Knowledge
  9. 9. Combining SIOC & SSNDigital Enterprise Research Institute www.deri.ie Enabling Networked Knowledge
  10. 10. Combining SIOC & SSN (2)Digital Enterprise Research Institute www.deri.ie  Describing post and sensor metadata  Create SIOC Sensors (siocs) Module  has_sensor_data – joins sioct:MicroblogPost to ssn:Observationvalue Enabling Networked Knowledge
  11. 11. Annotated Microblog PostDigital Enterprise Research Institute www.deri.ie Enabling Networked Knowledge
  12. 12. Modelling Mobile SensorsDigital Enterprise Research Institute www.deri.ie  Activity  Walking/Running/Standing  Car/Bike (Moving/In Traffic)  Direction  Compass – Orientation of device  Noise Levels  Location through Wi-fi (without GPS)  Light Levels  Temperature  Pressure Enabling Networked Knowledge
  13. 13. ScenarioDigital Enterprise Research Institute www.deri.ie  Emergency Situation  London Riots  Natural Disasters  User can enter “Emergency Mode” in Semantic Microblogging application on mobile Device  All sensor metadata available attached to post – And available to Emergency Teams  User direction (traveling or facing)  Recent activity  Noise levels  Light levels Enabling Networked Knowledge
  14. 14. ChallengesDigital Enterprise Research Institute www.deri.ie  Privacy – User data  Quality of data  Availability of data  Modelling sensors to add context  Sensors of varying type  Varying frequency  Aggregating/modelling sensor data over time  Data reliability – provenance? – user profiling?  Usability – low effort posting of metadata Enabling Networked Knowledge
  15. 15. Future WorkDigital Enterprise Research Institute www.deri.ie  Survey – to evaluate users’ desire to share sensor data  Build Mobile Semantic Microblogging application  Model sensors (Android devices)  Create User Evaluations of application  Different scenarios – traffic applications Enabling Networked Knowledge

×