Bridging Sensor Data Streams and Human Knowledge

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Bridging Sensor Data
Streams and Human
KnowledgeMATTIA ZENI
Trento, 12th December 2017
Department of Information
Engineeri...

Motivating
Example

The core is always the
user, and by chance his
name is Fausto
The user
Motivating Example
The Scenario
He has an appointme...

Standard Solution
Event in the
Agenda
The user can add the
event in the Agenda
Notifications
A notification will
popup to ...

Motivating Example (part 2)
A more complicated and realistic one
Adaptation to weather
conditions
External factors
Fausto ...

Adaptation
What should the role of technology
be?
Smartphone
User state of
affairs
The machine should
be aware of the user...

The context
The context is the key to adaptation
A machine should be
aware of the user context
at any moment in time so
th...

The Problem

The two representations
Humans vs Machines
The user has a complete view
of what is her contextual
information. She can
und...

Localization service
Where is the user?
GPS
Position represented
as coordinates:
46° 04’N, 11° 07’E
Lookup
The user is in ...

Machine – Sensor data
Sensors to knowledge is not a 1 to 1 mapping
73%Too good
50%
18%
Too bad
11/40

Human - Context
How is this situation tackled by the user
I work in the University
I’m in a meeting I’m in my office
I wor...

The Solution

The Methodology
Based on an interdisciplinary approach
The user knowledge
must be represented
in a way so that the
machine...

Semantics
Represent the user knowledge
Ontologies provide structured data that are
general, compositional, reusable and
in...

Plugging domains incrementally
The way to adaptation and real time re-configuration
16/40
PartOf
Where
Nr: 1234
Sensors: W...

Machine Learning
Process the sensor streams according to the contextual information
The task of bridging the semantic
gap ...

Knowledge Generation
Micro-task
MANAGING SENSOR DATA
SENSOR DATA PRE-PROCESSING
.
.
.
1
2
N
concepti
WI
concepti
WE
concep...

The user must be kept in the loop
Human centered computing
The user is the most important source of
information
19/40
The ...

The Reference Architecture

The Reference Architecture
The main subsystems
Data Acquisition and
Management
Subsystem
In charge of the
acquisition and
...

Data Acquisition and Management
SubsystemHow to collect, store, manage and access the data?
22/40
API UNZIP PROCESSINGSCHE...

Knowledge Generation Subsystem
How to exploit the different data sources to generate meaningful knowledge?
23/40
Internal ...

Knowledge Exploitation Subsystem
How to use the generated knowledge to provide services to the user?
24/40
Privacy Layer
A...

The Stream Base System

Requirements
Instantiation of the reference architecture
The system should operate in real time
with an high number of use...

Docker is the world’s
leading software
containerization
platform
Modularity
Kubernetes is an
open-source system for
automa...

i-Log
How can we collect data from the users?
The application adapts to different use cases and to
different smartphones
C...

Real Life
Exploitation

Municipality of Trento
Help decision makers in applying policies about sustainable mobility for the public good
30/40
Moda...

Not a one-man job
The team
31/40
Elisa Gobbi
Ph.D. Student @ Department of Sociology and Social Research
Sociology expert ...

University of Trento
SmartUnitn - The first real life adoption on Unitn students
32/40
Understand how students’ time alloc...

University of Trento
33/40F. Giunchiglia, M. Zeni, E. Gobbi, E. Bignotti and I. Bison, "Mobile Social Media Usage and Acad...

Distribution of Social Media Usage
Quantifying user interactions
34/40
S of social media apps while studying D̄ of social ...

Quantifying biases in users answers
Inconsistencies in user answering behavior
35/40
∆QA lower than 30.4
minutes.
The red ...

Consistency
Quality of the data
36/40

Already scheduled use cases
What’s next?
0 200 400 600 800 1000
Dec
Jan
Mar
Apr
March 2018
February 2018 March 2018
April ...

Want a thesis on this?
Look no further
38/40
Android iOS
Develop the iOS
version of our mobile
application
Machine
Learnin...

Thank you

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