EvIM: Event Information Management A real-time complex event discovery platform for cyber-physical-social systems. Presented at ICMR 2014

1. EvIM: Event Information Management
A Real-time Complex Event Discovery Platform for
Cyber-Physical-Social Systems
Minh-Son Dao*, Siripen Pongpaichet+, Laleh Jalali+,
Kyoungsook Kim*, Ramesh Jain+, and Koiji Zettsu*
*National Institute of Information and Communications Technology,
+University of California, Irvine, USA
2nd April, 2014
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2. • Event Discovery Platform for CPS
• Integrated EventWarehouse & EventShop
INTRODUCTION
• Sensors, Processors, ActuatorsCHALLENGE
• Situation Abstraction
• Situation Model Discovery
PROPOSED
SOLUTIONS
• From Trillions of Information Objects to
Focused Situations
ENRICH SITUATION
AWARENESS
• Asthma Risk Situations ModelSCENARIO
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3. INTRODUCTION
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Web
Location Based
Mobile Applications
Ongoing Archived
Database System
satellite
Cloud
resources
Environmental
Sensor Devices
Internet of Things
Social Media
Billions of
geo-location and
time based devices
Cyber Physical
Social Systems
Real-time
Information sharing
&
decision making
Experts
People
Governmental
Agencies
Situations
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4. INTRODUCTION
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Past Now and Future4

5. 5

6. INTRODUCTION
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7. CHALLENGES
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Processors
ActuatorsSensors
How to detect or predict
situations that can make
human life better?
How to communicate
successfully and instantly
with potential actuators?
How to discover useful
information from
heterogeneous and large
scale sensors?
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8. INFORMATION OBJECT
• A new concept for manipulate information, called
“Information Object”
• Encapsulate major characteristics of event: what,
where, when, who.
General case:
(data, operators) = Information Object Model
Specific case:
(sensors' data, operators) = Event
(events, operators) = Complex Event Model
(events/complex events, actions) = Situation Model
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Definition:
Situation is “actionable abstraction of observed spatio-temporal descriptors”
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9. SITUATION MODELS
Heterogeneous Sensor Data
Homogeneous
Information
Object
Event:“wearing
mask” topic (i.o3)
Event:Abnormally
increasing of
PM2.5 (i.o1)
Event:Abnormally
decreasing of
wind speed (i.o2)
Send Alert
Longitude,
latitude, time
“Aggregate:Sum, Filter:Value, Logic:AND”
(((#i.o1 + #i.o2) > b) ^ #i.o4)
space time
objects
topic
I.O. model
Ops
“Filter:Value”
(#i.o3 > a)
op
i.o
Actuator S
Act
TOPIC
detection ABNORMAL
detection
PM2.5 sensorTwitter sensor Wind speed sensor
d d d
op op op
i.o i.o i.o
ComplexEvent:
High Air Pollution
(i.o5)
ComplexEvent:
Unusual wearing
mask event (i.o4)
op
i.o
Situation:
Send alert to people
in high air pollution
(i.o6)
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10. • Target users:
– Application designers and developers in any expert
domain who want to create situation-aware
applications in the large scale and dynamic fashion
• Functionalities:
– Discover hidden patterns and generate semi-
automated situation recognition models
– Easy to build applications and require less technical or
computer science expertise
– Improve the quality of the defined situation model
and support dynamic and personalized action
DESIGN GOALS
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11. SITUATION AWARENESS APP
• From Trillions of Information Objects to
Focused Situations
• The process of building any situation
awareness application including 4 steps
1. Application Requirement and Specification
2. Model Retrieval and Discovery
3. Model Alteration and Design
4. Application Execution and Monitoring
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12. INTREGRATED PLATFORM
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13. APP REQUIREMENT AND SPECIFICATION
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14. MODEL RETRIEVAL AND DISCOVERY
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15. • A processor component consists of 4
components
– Semantic Decoupling
– Spatial-Correlative Sensors Clustering
– Abnormally Detecting
– Patterns Discovering
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MODEL DISCOVERY FROM ANOMALY PHENOMENA
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16. MODEL ALTERATION AND DESIGN
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17. APP EXECUTION AND MONITORING
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18. 5
SCENARIO
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19. SCENARIO: DISCOVERED PATTERN
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20. CONCLUSION & FUTURE
• EvIM is designed to harvest and analyze data
streams coming from heterogeneous sensors
• Introduce a unique Information Object (IO)
concept to harmonize data streams
• EvIM provides benefits in building situation
awareness application across domains
• At the designing state, the existing model, list of
IO candidates are provided to application
developers. However, users can modify the model
to serve their own purposes.
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21. Questions? Comments 
Siripen Pongpaichet
spongpai@uci.edu21