A Context and User Aware Smart Notification System
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A Context and User Aware
Smart Notification
System
Fulvio Corno
Luigi De Russis
Teodoro Montanaro*
http://jol.telecomitalia.com/j
olswarm/
http://elite.polito.it/
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2
Outline
1. Context and Motivation
2. Goal
3. Architecture
4. Prototype
5. Preliminary results
6. Conclusion
7. Future work
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3
Context
Context
Infographic from "The Connectivist": growing of IoT connected devices
(http://www.theconnectivist.com/2014/05/infographic-the-growth-of-the-internet-of-things/)
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4
Motivation
Motivation
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Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
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6
Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
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7
Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
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8
Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
The number of notifications is growing
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9
Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
The number of notifications is growing
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10
Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
Nowadays the same notification is replicated on all available devices
The number of notifications is growing
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11
Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
Nowadays the same notification is replicated on all available devices
The number of notifications is growing
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12
Motivation
Motivation
IoT devices can generate, receive and show different kinds of notifications
Nowadays the same notification is replicated on all available devices
The number of notifications is growing
The benefit of displaying the same
notification on all available devices
could put user patience to a hard test
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Analyze how machine learning approach can improve
IoT notification user experience
Goal
Goal
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14
Analyze how machine learning approach can improve
IoT notification user experience
Goal
Goal
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15
Analyze how machine learning approach can improve
IoT notification user experience
Goal
Goal
Develop a system able to filter incoming notifications
depending on:
• Notification information
• Environment status
• User context
• User habits
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16
Analyze how machine learning approach can improve
IoT notification user experience
Goal
Goal
Develop a system able to filter incoming notifications
depending on:
• Notification information
• Environment status
• User context
• User habits
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17
Analyze how machine learning approach can improve
IoT notification user experience
Goal
Goal
Develop a system able to filter incoming notifications
depending on:
• Notification information
• Environment status
• User context
• User habits
Evaluate machine learning approach
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18
We propose:
Architecture
Architecture
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We propose: A modular architecture
Architecture
Architecture
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20
We propose: A modular architecture
Architecture
Architecture
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We propose: A modular architecture
Architecture
Architecture
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We propose: A modular architecture aware of
Architecture
Architecture
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We propose:
Environment status
(e.g., weather information,
current date and time)
A modular architecture aware of
Architecture
Architecture
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24
We propose:
Environment status
(e.g., weather information,
current date and time)
User context (e.g.,
location, status, current
activity),
A modular architecture aware of
Architecture
Architecture
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25
We propose:
Environment status
(e.g., weather information,
current date and time)
User context (e.g.,
location, status, current
activity),
User habits
A modular architecture aware of
Architecture
Architecture
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26
We propose: A modular architecture
Architecture
Architecture
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27
We propose:
Decision maker: Machine Learning
algorithm makes decisions (best devices
+ best modes + best moment).
Architecture
Architecture
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Architecture: example
Architecture
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Architecture: example
Architecture
Mario is in a
meeting
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Architecture: example
Architecture
Mario is in a
meeting
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31
Architecture: example
Architecture
Every meeting lasts at least 2
hours
Mario is in a
meeting
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Architecture: example
Architecture
Every meeting lasts at least 2
hours
Mario is in a
meeting
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Architecture: example
Architecture
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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34
Architecture: example
Architecture
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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35
Architecture: example
Architecture
Notification: the toilet
paper has just finished
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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36
Architecture: example
Architecture
Notification: the toilet
paper has just finished
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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37
Architecture: example
Architecture
Notification: the toilet
paper has just finished
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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38
Architecture: example
Architecture
Notification: the toilet
paper has just finished
Notify:
• At 18:10
• on his personal
smartphone
• Sound
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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39
Architecture: example
Architecture
Notification: the toilet
paper has just finished
Notify:
• At 18:10
• on his personal
smartphone
• Sound
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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40
Architecture: example
Architecture
Notification: the toilet
paper has just finished
Notify:
• At 18:10
• on his personal
smartphone
• Sound
Time: 17:00
Meeting started at
16:00
Wife is at home
Every meeting lasts at least 2
hours
Mario is in a
meeting
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41 Prototype
Prototype implementation
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42 Prototype
Prototype implementation Aim: evaluate machine learning approach to decide
• who should receive an incoming notification;
• the best moment to show the notification;
• the best device(s)
• the best mode to notify the incoming notification
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43 Prototype
Prototype implementation Aim: evaluate machine learning approach to decide
• who should receive an incoming notification;
• the best moment to show the notification;
• the best device(s)
• the best mode to notify the incoming notification
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44 Prototype
Prototype implementation
Preliminary version of
Aim: evaluate machine learning approach to decide
• who should receive an incoming notification;
• the best moment to show the notification;
• the best device(s)
• the best mode to notify the incoming notification
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45 Prototype
Prototype implementation
Preliminary version of
Aim: evaluate machine learning approach to decide
• who should receive an incoming notification;
• the best moment to show the notification;
• the best device(s)
• the best mode to notify the incoming notification
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46 Prototype
Prototype implementation
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47 Prototype
Prototype implementation
Preliminary version of
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48 Prototype
Prototype implementation
Preliminary version of
Dataset
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49 Prototype
Prototype implementation
Preliminary version of
Dataset Algorithms
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Prototype implementation
Prototype
Dataset
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51
Prototype implementation
Prototype
94 people over 9 months
monitored through
smartphones in 2004:
• Sender
• Receiver
• Type of notification
• Timestamp of receipt
• User current location
Dataset
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Prototype implementation
Prototype
94 people over 9 months
monitored through
smartphones in 2004:
• Sender
• Receiver
• Type of notification
• Timestamp of receipt
• User current location
Dataset
Synthetic data:
• User current
activity
• Available devices
for the user
• Target device.
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53
Prototype implementation
Prototype
94 people over 9 months
monitored through
smartphones in 2004:
• Sender
• Receiver
• Type of notification
• Timestamp of receipt
• User current location
Dataset
Synthetic data:
• User current
activity
• Available devices
for the user
• Target device.
Real + synthetic dataset:
165,289 samples, almost one per
each hour of the day
(the missing samples are related
to hours in which users turned
off their smartphones)
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54
Prototype implementation
Prototype
94 people over 9 months
monitored through
smartphones in 2004:
• Sender
• Receiver
• Type of notification
• Timestamp of receipt
• User current location
Dataset
Synthetic data:
• User current
activity
• Available devices
for the user
• Target device.
Real + synthetic dataset:
165,289 samples, almost one per
each hour of the day
(the missing samples are related
to hours in which users turned
off their smartphones)
Information collected by Decision Maker in previous example
{
“notification“:{
“senderName“:“mySmartHome“,
“type“:“smart Home Notification“,
“receiptTimestamp“:“1447347600“
},
“userStatus“: {
“senderId“: “359“,
“currentActivity“:“STILL“,
“currentActivityConfidence“:“50%“,
“availableDevices”:[“deviceId”:”23”]
},
“deviceStatus“:{
“deviceId“:”23”,
“category“:”Smartphone”,
“currentStatus“:”On”,
“currentMode“:”Ring”,
“wifiStatus“:” Connected through MOBILE”,
“batteryLevel“:” 57%”,
“batteryStatus“:”BATTERY_STATUS_NOT_CHARGING”
}
}
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Prototype implementation
Prototype
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
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56
Prototype implementation
Prototype
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
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57
Prototype implementation
Prototype
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
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58
Prototype implementation
Prototype
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
Training dataset: 80% of data
Tests dataset: 20% of data
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Prototype implementation
Prototype
Simplified version of the Decision
maker:
• only one device as receiver;
• only one available mode for each
device;
• no decision about the best time
to deliver the notification;
• not aware of environment
context
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
Training dataset: 80% of data
Tests dataset: 20% of data
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Prototype implementation
Prototype
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
Training dataset: 80% of data
Tests dataset: 20% of data
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61
Prototype implementation
Prototype
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
Training dataset: 80% of data
Tests dataset: 20% of data
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62
Prototype implementation
Prototype
Three machine learning
algorithms:
1. Support Vector Machine
2. Gaussian Naïve Bayes
3. Decision Trees.
Machine learning algorithms
Dataset
Real + synthetic data (165,289
samples)
Training dataset: 80% of data
Tests dataset: 20% of data
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63
Preliminary results
Preliminary results
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64
Preliminary results
Preliminary results
96,10%
83,40%
93,90%
0,00%
20,00%
40,00%
60,00%
80,00%
100,00%
Support
Vector
Machine
Gaussian
Naive Bayes
Decision Trees
Percentage of corrected predictions obtained
with used algorithms
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65
Preliminary results
Preliminary results
CPU time (in seconds) for a training phase with
33058 samples
96,10%
83,40%
93,90%
0,00%
20,00%
40,00%
60,00%
80,00%
100,00%
Support
Vector
Machine
Gaussian
Naive Bayes
Decision Trees
5801,1
12,9 13,9
1
10
100
1000
10000
Support
Vector
Machine
Gaussian
Naive Bayes
Decision Trees
Percentage of corrected predictions obtained
with used algorithms
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66
Preliminary results
Preliminary results
Average CPU time (in milliseconds) for each
notification classification
Support Vector Machine 40,22 ms
Gaussian Naive Bayes 0,31 ms
Decision Trees 0,001 ms
96,10%
83,40%
93,90%
0,00%
20,00%
40,00%
60,00%
80,00%
100,00%
Support
Vector
Machine
Gaussian
Naive Bayes
Decision Trees
Percentage of corrected predictions obtained
with used algorithms
CPU time (in seconds) for a training phase with
33058 samples
5801,1
12,9 13,9
1
10
100
1000
10000
Support
Vector
Machine
Gaussian
Naive Bayes
Decision Trees
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Conclusion Obtained results demonstrated that our system uses a promising technique to
manage the problem of overwhelming notifications.
Specifically, the machine learning approach was tested through 3 different
algorithms and SVM and DT seem to be the most promising one.
Conclusion
Future work:
Define a new dataset to include all the needed real information
Development of a system to collect real data and real notifications
Careful evaluation of the machine learning algorithms
Enhancement of prototype to include unconsidered blocks
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Thank you
Future work
Notification Collector (beta):
Android app to collect real data
https://goo.gl/pLMWSG
To contribute: download it! Requirement: Android 5 (Lollipop)
We collect (anonymously):
• Incoming notification info (no
content)
• User current activity
• User current location
• Device status
• User feedback