1. Micro-Blog - CS546 - Anoop Nimkar
Sharing and Querying Content Through Mobile phones and Social Participation
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

2. Micro-Blog - CS546 - Anoop Nimkar
Outline
Background and History
Introduction
Service Description and Applications
Architecture and Design
System Implementation
Evaluation
Limitations
Summary and Conclusion
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

3. Micro-Blog - CS546 - Anoop Nimkar
History - Blog
Short for Web log, a blog is a Web page that serves as a publicly accessible personal journal for an individual
Typically updated daily, blogs often reflect the personality of the author
The term "weblog" was coined by Jorn Barger on 17 December 1997
The short form, "blog," was coined by Peter Merholz, who jokingly broke the word weblog into the phrase we blog in the sidebar of his blog Peterme.com in April or May 1999
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

4. Micro-Blog - CS546 - Anoop Nimkar
History Contd …
Micro-blogging is a form of multimedia blogging that allows users to send brief text updates or micromedia such as photos or audio clips and publish them, either to be viewed by anyone or by a restricted group which can be chosen by the user
These messages can be submitted by a variety of means, including text messaging, instant messaging, , digital audio or the web
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

5. Micro-Blog - CS546 - Anoop Nimkar
Introduction
Example of wireless sensor networks
Mobile computing hardware
Virtual Lens, Virtual Telescope
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

6. Micro-Blog - CS546 - Anoop Nimkar
Introduction – Contd …
Record blogs on-the-fly
with physical and geographical tags
Localization challange
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

7. Micro-Blog - CS546 - Anoop Nimkar
Micro-blog Services
Querying in Micro-blog
Micro-blogs at physical location
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

8. Micro-blog Applications
Tourism
Micro-News
Micro-Alerts
Social Collaboration
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

9. Architecture and Design
Client-Server architecture
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

10. Architecture and Design – Contd…
Design Considerations
Energy-aware Localization
Energy-aware Applications
Incentives
Location Privacy
Span
Content Inaccuracy
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

11. System Implementation
Finite state machine of the micro-blog client application
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

12. System Implementation Contd …
Phone Client
Web Infrastructure
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

13. Micro-Blog - CS546 - Anoop Nimkar
Evaluation
Battery Life and Location accuracy
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

14. Micro-Blog - CS546 - Anoop Nimkar
Evaluation Contd …
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

15. Micro-Blog - CS546 - Anoop Nimkar
Case Study
Distributed to 12 students
User experiences summary
Fun activity for idle time, needed cooler UI
Privacy control vital, and replies more interesting
Incentives is not an issue if its fun
Voice is personal, text is impersonal
Evenings are good times
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

16. Limitations and Ongoing work
Location-privacy in General Public
Exploiting Accelerometers for Localization
Integration with social network applications
Identifying false content
How conclusive is the user study ?
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar

17. Micro-Blog - CS546 - Anoop Nimkar
Summary & Conclusion
Presented participatory sensing application called Micro-blog
Key challenge addressed : Energy efficient localization
Evaluated micro-blog by building and deploying a prototype implementation
Micro-blog represents a promising new model for mobile social collaboration
1/11/2019
Micro-Blog - CS546 - Anoop Nimkar