Transcript Slides

A.K.A Gestures
Analyzing and Safeguarding Human-Kinesics
Information in Wirelessly Instrumented Space
Kirti Chawla
[email protected]
Motivation
Wirelessly Instrumented Space
Sensors, WISP, RFID
tags and readers
Human Activity
Gestures
Legitimate Application
Benefits to the User
Problem
1. What can be learned from the gestures ?
2. Do gestures “give-away” our identity ?
3. Can gestures combined with other multi-modal
sensed-data lead to finer-granularity of activity
recognition ?
4. What are the possible implications ? (e.g.,
replaying gestures etc.)
5. How can the threats be mitigated ?
Research Questions
Wirelessly Instrumented Space
Sensors, WISP, RFID
tags and readers
Human Activity
Gestures
Adversary
Legitimate Application
Privacy Leakage
Benefits to the User
Un-intended
Consequences
System
Kinesics Recognition System
An Application
Theory
SUMK Scenario
E
F
F
E
C
T
MUSK Scenario
C4.5
kNN
SVM
Naïve Bayes
CN2
C
A
U
S
E
Evaluation
Subjects
Correlate
Classify
TRS Method
Subjects
Correlate
Classify
TRS Method
Subjects
Correlate
Classify
TRS Method
Mitigation
OTP based Stream Cipher
WISP Cage
Apps
App 1: Lock Workstation
App 2: Change IM Status Msg
App 3: Control Light/Appliance
Questions