Associate Prof. Yutaka ArakawaNara Institute of Science and Technology, Japan

ara@is.naist.jphttp://ubi-lab.naist.jp/

What is a gear for spreading a participatory-urban-sensing?

"Infrastructure vs. Mobile Sensing - The Evolving Landscape”

New comer’s impression

Participatory Sensing

Network Battery Privacy

• PS relies on well-meaning participants

How to get enough participants in real services?

Motivation is the most important.

What motivates participants?

[1]Nov, Oded. "What motivates wikipedians?." Communications of the ACM 50.11 (2007): 60-64.

In case of “Wikipedia”[1]

1. Fun 2. Ideology 3. Values

? In case of “Participatory Urban sensing” ?

• Internavi : HONDA’s Networked Car Navigation System– Usually used for estimating traffic congestion.

• Google : Google Crisis Response– Visualize the trajectory of all the cars equipping Internavi.

4

In disaster, Urban sensing proved its effectiveness.

Social mission of these companies.

2009Experimental demo of WiFi-based indoor localization and people trajectory pattern analysis at a big shopping mall

• Main project: Rapid and low cost Wifi infrastructureby using MIMO and mesh network.• 200 APs in 34000 m2

• Sub projects• Floor and Store navigation• Trajectory pattern analysis by using small wireless-tag.

MIMO APWireless tagWhat is the benefit for deploying WiFi infrastructure?

• Urban Air : MSRA’s research– http://urbanair.msra.cn/

6

For public disruption, Infrastructure-based urban sensing is welcomed.

Air pollution is quite important issue for citizens.

Nuttapoom Amornpashara, Yutaka Arakawa, Morihiko Tamai, and Keiichi Yasumoto, ``Phorec: Context-Aware photography Support System Based on Analysis of Big Data of Good Photo with Location, Time, and Weather Condition,'' ACM HotMobile 2014 (Poster).

From where?Which season?

What time?How about a

weather?

Camera setting?(ISO, exposure, etc)

2012-2013Flickr-based sightseeing spots retrieving and context-aware photography support system

In social sensing, users are involved implicitly, regardless of their motivation.

Classify the urban sensing by

Time Requirement

Non realtime（Statistics） Real time

Twitter/Facebook analysis

Flickr/Wikipediaanalysis

Participatoryurban sensing

Open dataOpen government

Infrastructure-basedurban sensing

My impression

Twitter/Facebook analysis

Flickr/Wikipediaanalysis

Participatoryurban sensing

Open dataOpen government

Infrastructure-basedurban sensing

Now Future Requires strong motivation.

Non realtime（Statistics） Real time

For common problems

• Monetary Incentive– Straightforward approach– Over 500,000 users

• Gamification– Psychological need-satisfaction– Importance of “Fun” was proved.– Succeed to create huge POI DB.

How to motivate ?

Our

Approach

Both

2013Gamification-Based Incentive Mechanism for evolving a Participatory Sensing

Y. Ueyama, M. Tamai, Y. Arakawa, and K. Yasumoto, ``Gamification-Based Incentive Mechanism for Participatory Sensing'', CROWDSENSING 2014 in conjunction with IEEE PerCom 2014.

MonetaryIncentive Gamification

Ranking Badges

• A task is requested based on a user’s checkIn on Foursquare.• Total requests: 481（Japan: 413、Europe: 42、Taiwan: 26）• Gamification is introduced in addition to a real monetary incentive.

• Ranking, Badges

Cost reductionby

gamification

Gamification

MonetaryIncentive

MonetaryIncentive

• Service in Philippine by Japanese startup• Achieve requested mission, Get Free call and SMS• Over 50,000 subscribers in 2013• http://can-dy.ph/

Interesting business model

Candy: A sweet mobile rewards solution

How about the possibility of

urban sensing phone?Free unlimited (slow) data access,

But all the sensing date are upload.

• In order to spread a participatory sensing,

how to motivate participants is the key issue.

• Not only monetary incentive but also gamification is

effective for keeping user’s mind and saving the sensing

cost.

• If we deploy some infrastructures for sensing something,

we must think the final benefit for infrastructure providers.

Summary